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</pre><pre class='rust '>
<span class='comment'>// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or</span>
<span class='comment'>// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license</span>
<span class='comment'>// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your</span>
<span class='comment'>// option. This file may not be copied, modified, or distributed</span>
<span class='comment'>// except according to those terms.</span>
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>iter</span>::<span class='ident'>repeat</span>;
<span class='kw'>use</span> <span class='ident'>cryptoutil</span>::{<span class='ident'>copy_memory</span>, <span class='ident'>read_u64v_le</span>, <span class='ident'>write_u64v_le</span>};
<span class='kw'>use</span> <span class='ident'>digest</span>::<span class='ident'>Digest</span>;
<span class='kw'>use</span> <span class='ident'>mac</span>::{<span class='ident'>Mac</span>, <span class='ident'>MacResult</span>};
<span class='kw'>use</span> <span class='ident'>util</span>::<span class='ident'>secure_memset</span>;
<span class='kw'>static</span> <span class='ident'>IV</span> : [<span class='ident'>u64</span>; <span class='number'>8</span>] <span class='op'>=</span> [
<span class='number'>0x6a09e667f3bcc908</span>, <span class='number'>0xbb67ae8584caa73b</span>,
<span class='number'>0x3c6ef372fe94f82b</span>, <span class='number'>0xa54ff53a5f1d36f1</span>,
<span class='number'>0x510e527fade682d1</span>, <span class='number'>0x9b05688c2b3e6c1f</span>,
<span class='number'>0x1f83d9abfb41bd6b</span>, <span class='number'>0x5be0cd19137e2179</span>,
];
<span class='kw'>static</span> <span class='ident'>SIGMA</span> : [[<span class='ident'>usize</span>; <span class='number'>16</span>]; <span class='number'>12</span>] <span class='op'>=</span> [
[ <span class='number'>0</span>, <span class='number'>1</span>, <span class='number'>2</span>, <span class='number'>3</span>, <span class='number'>4</span>, <span class='number'>5</span>, <span class='number'>6</span>, <span class='number'>7</span>, <span class='number'>8</span>, <span class='number'>9</span>, <span class='number'>10</span>, <span class='number'>11</span>, <span class='number'>12</span>, <span class='number'>13</span>, <span class='number'>14</span>, <span class='number'>15</span> ],
[ <span class='number'>14</span>, <span class='number'>10</span>, <span class='number'>4</span>, <span class='number'>8</span>, <span class='number'>9</span>, <span class='number'>15</span>, <span class='number'>13</span>, <span class='number'>6</span>, <span class='number'>1</span>, <span class='number'>12</span>, <span class='number'>0</span>, <span class='number'>2</span>, <span class='number'>11</span>, <span class='number'>7</span>, <span class='number'>5</span>, <span class='number'>3</span> ],
[ <span class='number'>11</span>, <span class='number'>8</span>, <span class='number'>12</span>, <span class='number'>0</span>, <span class='number'>5</span>, <span class='number'>2</span>, <span class='number'>15</span>, <span class='number'>13</span>, <span class='number'>10</span>, <span class='number'>14</span>, <span class='number'>3</span>, <span class='number'>6</span>, <span class='number'>7</span>, <span class='number'>1</span>, <span class='number'>9</span>, <span class='number'>4</span> ],
[ <span class='number'>7</span>, <span class='number'>9</span>, <span class='number'>3</span>, <span class='number'>1</span>, <span class='number'>13</span>, <span class='number'>12</span>, <span class='number'>11</span>, <span class='number'>14</span>, <span class='number'>2</span>, <span class='number'>6</span>, <span class='number'>5</span>, <span class='number'>10</span>, <span class='number'>4</span>, <span class='number'>0</span>, <span class='number'>15</span>, <span class='number'>8</span> ],
[ <span class='number'>9</span>, <span class='number'>0</span>, <span class='number'>5</span>, <span class='number'>7</span>, <span class='number'>2</span>, <span class='number'>4</span>, <span class='number'>10</span>, <span class='number'>15</span>, <span class='number'>14</span>, <span class='number'>1</span>, <span class='number'>11</span>, <span class='number'>12</span>, <span class='number'>6</span>, <span class='number'>8</span>, <span class='number'>3</span>, <span class='number'>13</span> ],
[ <span class='number'>2</span>, <span class='number'>12</span>, <span class='number'>6</span>, <span class='number'>10</span>, <span class='number'>0</span>, <span class='number'>11</span>, <span class='number'>8</span>, <span class='number'>3</span>, <span class='number'>4</span>, <span class='number'>13</span>, <span class='number'>7</span>, <span class='number'>5</span>, <span class='number'>15</span>, <span class='number'>14</span>, <span class='number'>1</span>, <span class='number'>9</span> ],
[ <span class='number'>12</span>, <span class='number'>5</span>, <span class='number'>1</span>, <span class='number'>15</span>, <span class='number'>14</span>, <span class='number'>13</span>, <span class='number'>4</span>, <span class='number'>10</span>, <span class='number'>0</span>, <span class='number'>7</span>, <span class='number'>6</span>, <span class='number'>3</span>, <span class='number'>9</span>, <span class='number'>2</span>, <span class='number'>8</span>, <span class='number'>11</span> ],
[ <span class='number'>13</span>, <span class='number'>11</span>, <span class='number'>7</span>, <span class='number'>14</span>, <span class='number'>12</span>, <span class='number'>1</span>, <span class='number'>3</span>, <span class='number'>9</span>, <span class='number'>5</span>, <span class='number'>0</span>, <span class='number'>15</span>, <span class='number'>4</span>, <span class='number'>8</span>, <span class='number'>6</span>, <span class='number'>2</span>, <span class='number'>10</span> ],
[ <span class='number'>6</span>, <span class='number'>15</span>, <span class='number'>14</span>, <span class='number'>9</span>, <span class='number'>11</span>, <span class='number'>3</span>, <span class='number'>0</span>, <span class='number'>8</span>, <span class='number'>12</span>, <span class='number'>2</span>, <span class='number'>13</span>, <span class='number'>7</span>, <span class='number'>1</span>, <span class='number'>4</span>, <span class='number'>10</span>, <span class='number'>5</span> ],
[ <span class='number'>10</span>, <span class='number'>2</span>, <span class='number'>8</span>, <span class='number'>4</span>, <span class='number'>7</span>, <span class='number'>6</span>, <span class='number'>1</span>, <span class='number'>5</span>, <span class='number'>15</span>, <span class='number'>11</span>, <span class='number'>9</span>, <span class='number'>14</span>, <span class='number'>3</span>, <span class='number'>12</span>, <span class='number'>13</span> , <span class='number'>0</span> ],
[ <span class='number'>0</span>, <span class='number'>1</span>, <span class='number'>2</span>, <span class='number'>3</span>, <span class='number'>4</span>, <span class='number'>5</span>, <span class='number'>6</span>, <span class='number'>7</span>, <span class='number'>8</span>, <span class='number'>9</span>, <span class='number'>10</span>, <span class='number'>11</span>, <span class='number'>12</span>, <span class='number'>13</span>, <span class='number'>14</span>, <span class='number'>15</span> ],
[ <span class='number'>14</span>, <span class='number'>10</span>, <span class='number'>4</span>, <span class='number'>8</span>, <span class='number'>9</span>, <span class='number'>15</span>, <span class='number'>13</span>, <span class='number'>6</span>, <span class='number'>1</span>, <span class='number'>12</span>, <span class='number'>0</span>, <span class='number'>2</span>, <span class='number'>11</span>, <span class='number'>7</span>, <span class='number'>5</span>, <span class='number'>3</span> ],
];
<span class='kw'>const</span> <span class='ident'>BLAKE2B_BLOCKBYTES</span> : <span class='ident'>usize</span> <span class='op'>=</span> <span class='number'>128</span>;
<span class='kw'>const</span> <span class='ident'>BLAKE2B_OUTBYTES</span> : <span class='ident'>usize</span> <span class='op'>=</span> <span class='number'>64</span>;
<span class='kw'>const</span> <span class='ident'>BLAKE2B_KEYBYTES</span> : <span class='ident'>usize</span> <span class='op'>=</span> <span class='number'>64</span>;
<span class='kw'>const</span> <span class='ident'>BLAKE2B_SALTBYTES</span> : <span class='ident'>usize</span> <span class='op'>=</span> <span class='number'>16</span>;
<span class='kw'>const</span> <span class='ident'>BLAKE2B_PERSONALBYTES</span> : <span class='ident'>usize</span> <span class='op'>=</span> <span class='number'>16</span>;
<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Copy</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>Blake2b</span> {
<span class='ident'>h</span>: [<span class='ident'>u64</span>; <span class='number'>8</span>],
<span class='ident'>t</span>: [<span class='ident'>u64</span>; <span class='number'>2</span>],
<span class='ident'>f</span>: [<span class='ident'>u64</span>; <span class='number'>2</span>],
<span class='ident'>buf</span>: [<span class='ident'>u8</span>; <span class='number'>2</span><span class='kw-2'>*</span><span class='ident'>BLAKE2B_BLOCKBYTES</span>],
<span class='ident'>buflen</span>: <span class='ident'>usize</span>,
<span class='ident'>key</span>: [<span class='ident'>u8</span>; <span class='ident'>BLAKE2B_KEYBYTES</span>],
<span class='ident'>key_length</span>: <span class='ident'>u8</span>,
<span class='ident'>last_node</span>: <span class='ident'>u8</span>,
<span class='ident'>digest_length</span>: <span class='ident'>u8</span>,
<span class='ident'>computed</span>: <span class='ident'>bool</span>, <span class='comment'>// whether the final digest has been computed</span>
<span class='ident'>param</span>: <span class='ident'>Blake2bParam</span>
}
<span class='kw'>impl</span> <span class='ident'>Clone</span> <span class='kw'>for</span> <span class='ident'>Blake2b</span> { <span class='kw'>fn</span> <span class='ident'>clone</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>Blake2b</span> { <span class='kw-2'>*</span><span class='self'>self</span> } }
<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Copy</span>, <span class='ident'>Clone</span>)]</span>
<span class='kw'>struct</span> <span class='ident'>Blake2bParam</span> {
<span class='ident'>digest_length</span>: <span class='ident'>u8</span>,
<span class='ident'>key_length</span>: <span class='ident'>u8</span>,
<span class='ident'>fanout</span>: <span class='ident'>u8</span>,
<span class='ident'>depth</span>: <span class='ident'>u8</span>,
<span class='ident'>leaf_length</span>: <span class='ident'>u32</span>,
<span class='ident'>node_offset</span>: <span class='ident'>u64</span>,
<span class='ident'>node_depth</span>: <span class='ident'>u8</span>,
<span class='ident'>inner_length</span>: <span class='ident'>u8</span>,
<span class='ident'>reserved</span>: [<span class='ident'>u8</span>; <span class='number'>14</span>],
<span class='ident'>salt</span>: [<span class='ident'>u8</span>; <span class='ident'>BLAKE2B_SALTBYTES</span>],
<span class='ident'>personal</span>: [<span class='ident'>u8</span>; <span class='ident'>BLAKE2B_PERSONALBYTES</span>],
}
<span class='macro'>macro_rules</span><span class='macro'>!</span> <span class='ident'>G</span>( (<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>r</span>:<span class='ident'>expr</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span>:<span class='ident'>expr</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>a</span>:<span class='ident'>expr</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>b</span>:<span class='ident'>expr</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>c</span>:<span class='ident'>expr</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>d</span>:<span class='ident'>expr</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>m</span>:<span class='ident'>expr</span>) <span class='op'>=></span> ({
<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>a</span> <span class='op'>=</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>a</span>.<span class='ident'>wrapping_add</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>b</span>).<span class='ident'>wrapping_add</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>m</span>[<span class='ident'>SIGMA</span>[<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>r</span>][<span class='number'>2</span><span class='kw-2'>*</span><span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span><span class='op'>+</span><span class='number'>0</span>]]);
<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>d</span> <span class='op'>=</span> (<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>d</span> <span class='op'>^</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>a</span>).<span class='ident'>rotate_right</span>(<span class='number'>32</span>);
<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>c</span> <span class='op'>=</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>c</span>.<span class='ident'>wrapping_add</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>d</span>);
<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>b</span> <span class='op'>=</span> (<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>b</span> <span class='op'>^</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>c</span>).<span class='ident'>rotate_right</span>(<span class='number'>24</span>);
<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>a</span> <span class='op'>=</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>a</span>.<span class='ident'>wrapping_add</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>b</span>).<span class='ident'>wrapping_add</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>m</span>[<span class='ident'>SIGMA</span>[<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>r</span>][<span class='number'>2</span><span class='kw-2'>*</span><span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>i</span><span class='op'>+</span><span class='number'>1</span>]]);
<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>d</span> <span class='op'>=</span> (<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>d</span> <span class='op'>^</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>a</span>).<span class='ident'>rotate_right</span>(<span class='number'>16</span>);
<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>c</span> <span class='op'>=</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>c</span> .<span class='ident'>wrapping_add</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>d</span>);
<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>b</span> <span class='op'>=</span> (<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>b</span> <span class='op'>^</span> <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>c</span>).<span class='ident'>rotate_right</span>(<span class='number'>63</span>);
}));
<span class='macro'>macro_rules</span><span class='macro'>!</span> <span class='ident'>round</span>( (<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>r</span>:<span class='ident'>expr</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>:<span class='ident'>expr</span>, <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>m</span>:<span class='ident'>expr</span>) <span class='op'>=></span> ( {
<span class='macro'>G</span><span class='macro'>!</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>r</span>,<span class='number'>0</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>0</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>4</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>8</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[<span class='number'>12</span>], <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>m</span>);
<span class='macro'>G</span><span class='macro'>!</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>r</span>,<span class='number'>1</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>1</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>5</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>9</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[<span class='number'>13</span>], <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>m</span>);
<span class='macro'>G</span><span class='macro'>!</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>r</span>,<span class='number'>2</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>2</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>6</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[<span class='number'>10</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[<span class='number'>14</span>], <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>m</span>);
<span class='macro'>G</span><span class='macro'>!</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>r</span>,<span class='number'>3</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>3</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>7</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[<span class='number'>11</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[<span class='number'>15</span>], <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>m</span>);
<span class='macro'>G</span><span class='macro'>!</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>r</span>,<span class='number'>4</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>0</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>5</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[<span class='number'>10</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[<span class='number'>15</span>], <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>m</span>);
<span class='macro'>G</span><span class='macro'>!</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>r</span>,<span class='number'>5</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>1</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>6</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[<span class='number'>11</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[<span class='number'>12</span>], <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>m</span>);
<span class='macro'>G</span><span class='macro'>!</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>r</span>,<span class='number'>6</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>2</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>7</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>8</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[<span class='number'>13</span>], <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>m</span>);
<span class='macro'>G</span><span class='macro'>!</span>(<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>r</span>,<span class='number'>7</span>,<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>3</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>4</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[ <span class='number'>9</span>],<span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>v</span>[<span class='number'>14</span>], <span class='macro-nonterminal'>$</span><span class='macro-nonterminal'>m</span>);
}
));
<span class='kw'>impl</span> <span class='ident'>Blake2b</span> {
<span class='kw'>fn</span> <span class='ident'>set_lastnode</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) {
<span class='self'>self</span>.<span class='ident'>f</span>[<span class='number'>1</span>] <span class='op'>=</span> <span class='number'>0xFFFFFFFFFFFFFFFF</span>;
}
<span class='kw'>fn</span> <span class='ident'>set_lastblock</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) {
<span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>last_node</span><span class='op'>!=</span><span class='number'>0</span> {
<span class='self'>self</span>.<span class='ident'>set_lastnode</span>();
}
<span class='self'>self</span>.<span class='ident'>f</span>[<span class='number'>0</span>] <span class='op'>=</span> <span class='number'>0xFFFFFFFFFFFFFFFF</span>;
}
<span class='kw'>fn</span> <span class='ident'>increment_counter</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>inc</span> : <span class='ident'>u64</span>) {
<span class='self'>self</span>.<span class='ident'>t</span>[<span class='number'>0</span>] <span class='op'>+=</span> <span class='ident'>inc</span>;
<span class='self'>self</span>.<span class='ident'>t</span>[<span class='number'>1</span>] <span class='op'>+=</span> <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>t</span>[<span class='number'>0</span>] <span class='op'><</span> <span class='ident'>inc</span> { <span class='number'>1</span> } <span class='kw'>else</span> { <span class='number'>0</span> };
}
<span class='kw'>fn</span> <span class='ident'>init0</span>(<span class='ident'>param</span>: <span class='ident'>Blake2bParam</span>, <span class='ident'>digest_length</span>: <span class='ident'>u8</span>, <span class='ident'>key</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>]) <span class='op'>-></span> <span class='ident'>Blake2b</span> {
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>key</span>.<span class='ident'>len</span>() <span class='op'><=</span> <span class='ident'>BLAKE2B_KEYBYTES</span>);
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='ident'>Blake2b</span> {
<span class='ident'>h</span>: <span class='ident'>IV</span>,
<span class='ident'>t</span>: [<span class='number'>0</span>,<span class='number'>0</span>],
<span class='ident'>f</span>: [<span class='number'>0</span>,<span class='number'>0</span>],
<span class='ident'>buf</span>: [<span class='number'>0</span>; <span class='number'>2</span><span class='kw-2'>*</span><span class='ident'>BLAKE2B_BLOCKBYTES</span>],
<span class='ident'>buflen</span>: <span class='number'>0</span>,
<span class='ident'>last_node</span>: <span class='number'>0</span>,
<span class='ident'>digest_length</span>: <span class='ident'>digest_length</span>,
<span class='ident'>computed</span>: <span class='bool-val'>false</span>,
<span class='ident'>key</span>: [<span class='number'>0</span>; <span class='ident'>BLAKE2B_KEYBYTES</span>],
<span class='ident'>key_length</span>: <span class='ident'>key</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>u8</span>,
<span class='ident'>param</span>: <span class='ident'>param</span>
};
<span class='ident'>copy_memory</span>(<span class='ident'>key</span>, <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>b</span>.<span class='ident'>key</span>);
<span class='ident'>b</span>
}
<span class='kw'>fn</span> <span class='ident'>apply_param</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) {
<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>io</span>::<span class='ident'>Write</span>;
<span class='kw'>use</span> <span class='ident'>cryptoutil</span>::<span class='ident'>WriteExt</span>;
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>param_bytes</span> : [<span class='ident'>u8</span>; <span class='number'>64</span>] <span class='op'>=</span> [<span class='number'>0</span>; <span class='number'>64</span>];
{
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>writer</span>: <span class='kw-2'>&</span><span class='kw-2'>mut</span> [<span class='ident'>u8</span>] <span class='op'>=</span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>param_bytes</span>;
<span class='ident'>writer</span>.<span class='ident'>write_u8</span>(<span class='self'>self</span>.<span class='ident'>param</span>.<span class='ident'>digest_length</span>).<span class='ident'>unwrap</span>();
<span class='ident'>writer</span>.<span class='ident'>write_u8</span>(<span class='self'>self</span>.<span class='ident'>param</span>.<span class='ident'>key_length</span>).<span class='ident'>unwrap</span>();
<span class='ident'>writer</span>.<span class='ident'>write_u8</span>(<span class='self'>self</span>.<span class='ident'>param</span>.<span class='ident'>fanout</span>).<span class='ident'>unwrap</span>();
<span class='ident'>writer</span>.<span class='ident'>write_u8</span>(<span class='self'>self</span>.<span class='ident'>param</span>.<span class='ident'>depth</span>).<span class='ident'>unwrap</span>();
<span class='ident'>writer</span>.<span class='ident'>write_u32_le</span>(<span class='self'>self</span>.<span class='ident'>param</span>.<span class='ident'>leaf_length</span>).<span class='ident'>unwrap</span>();
<span class='ident'>writer</span>.<span class='ident'>write_u64_le</span>(<span class='self'>self</span>.<span class='ident'>param</span>.<span class='ident'>node_offset</span>).<span class='ident'>unwrap</span>();
<span class='ident'>writer</span>.<span class='ident'>write_u8</span>(<span class='self'>self</span>.<span class='ident'>param</span>.<span class='ident'>node_depth</span>).<span class='ident'>unwrap</span>();
<span class='ident'>writer</span>.<span class='ident'>write_u8</span>(<span class='self'>self</span>.<span class='ident'>param</span>.<span class='ident'>inner_length</span>).<span class='ident'>unwrap</span>();
<span class='ident'>writer</span>.<span class='ident'>write_all</span>(<span class='kw-2'>&</span><span class='self'>self</span>.<span class='ident'>param</span>.<span class='ident'>reserved</span>).<span class='ident'>unwrap</span>();
<span class='ident'>writer</span>.<span class='ident'>write_all</span>(<span class='kw-2'>&</span><span class='self'>self</span>.<span class='ident'>param</span>.<span class='ident'>salt</span>).<span class='ident'>unwrap</span>();
<span class='ident'>writer</span>.<span class='ident'>write_all</span>(<span class='kw-2'>&</span><span class='self'>self</span>.<span class='ident'>param</span>.<span class='ident'>personal</span>).<span class='ident'>unwrap</span>();
}
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>param_words</span> : [<span class='ident'>u64</span>; <span class='number'>8</span>] <span class='op'>=</span> [<span class='number'>0</span>; <span class='number'>8</span>];
<span class='ident'>read_u64v_le</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>param_words</span>, <span class='kw-2'>&</span><span class='ident'>param_bytes</span>);
<span class='kw'>for</span> (<span class='ident'>h</span>, <span class='ident'>param_word</span>) <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>h</span>.<span class='ident'>iter_mut</span>().<span class='ident'>zip</span>(<span class='ident'>param_words</span>.<span class='ident'>iter</span>()) {
<span class='kw-2'>*</span><span class='ident'>h</span> <span class='op'>=</span> <span class='kw-2'>*</span><span class='ident'>h</span> <span class='op'>^</span> <span class='kw-2'>*</span><span class='ident'>param_word</span>;
}
}
<span class='comment'>// init xors IV with input parameter block</span>
<span class='kw'>fn</span> <span class='ident'>init_param</span>( <span class='ident'>p</span>: <span class='ident'>Blake2bParam</span>, <span class='ident'>key</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>] ) <span class='op'>-></span> <span class='ident'>Blake2b</span> {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='ident'>Blake2b</span>::<span class='ident'>init0</span>(<span class='ident'>p</span>, <span class='ident'>p</span>.<span class='ident'>digest_length</span>, <span class='ident'>key</span>);
<span class='ident'>b</span>.<span class='ident'>apply_param</span>();
<span class='ident'>b</span>
}
<span class='kw'>fn</span> <span class='ident'>default_param</span>(<span class='ident'>outlen</span>: <span class='ident'>u8</span>) <span class='op'>-></span> <span class='ident'>Blake2bParam</span> {
<span class='ident'>Blake2bParam</span> {
<span class='ident'>digest_length</span>: <span class='ident'>outlen</span>,
<span class='ident'>key_length</span>: <span class='number'>0</span>,
<span class='ident'>fanout</span>: <span class='number'>1</span>,
<span class='ident'>depth</span>: <span class='number'>1</span>,
<span class='ident'>leaf_length</span>: <span class='number'>0</span>,
<span class='ident'>node_offset</span>: <span class='number'>0</span>,
<span class='ident'>node_depth</span>: <span class='number'>0</span>,
<span class='ident'>inner_length</span>: <span class='number'>0</span>,
<span class='ident'>reserved</span>: [<span class='number'>0</span>; <span class='number'>14</span>],
<span class='ident'>salt</span>: [<span class='number'>0</span>; <span class='ident'>BLAKE2B_SALTBYTES</span>],
<span class='ident'>personal</span>: [<span class='number'>0</span>; <span class='ident'>BLAKE2B_PERSONALBYTES</span>],
}
}
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new</span>(<span class='ident'>outlen</span>: <span class='ident'>usize</span>) <span class='op'>-></span> <span class='ident'>Blake2b</span> {
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>outlen</span> <span class='op'>></span> <span class='number'>0</span> <span class='op'>&&</span> <span class='ident'>outlen</span> <span class='op'><=</span> <span class='ident'>BLAKE2B_OUTBYTES</span>);
<span class='ident'>Blake2b</span>::<span class='ident'>init_param</span>(<span class='ident'>Blake2b</span>::<span class='ident'>default_param</span>(<span class='ident'>outlen</span> <span class='kw'>as</span> <span class='ident'>u8</span>), <span class='kw-2'>&</span>[])
}
<span class='kw'>fn</span> <span class='ident'>apply_key</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>block</span> : [<span class='ident'>u8</span>; <span class='ident'>BLAKE2B_BLOCKBYTES</span>] <span class='op'>=</span> [<span class='number'>0</span>; <span class='ident'>BLAKE2B_BLOCKBYTES</span>];
<span class='ident'>copy_memory</span>(<span class='kw-2'>&</span><span class='self'>self</span>.<span class='ident'>key</span>[..<span class='self'>self</span>.<span class='ident'>key_length</span> <span class='kw'>as</span> <span class='ident'>usize</span>], <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>block</span>);
<span class='self'>self</span>.<span class='ident'>update</span>(<span class='kw-2'>&</span><span class='ident'>block</span>);
<span class='ident'>secure_memset</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>block</span>[..], <span class='number'>0</span>);
}
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new_keyed</span>(<span class='ident'>outlen</span>: <span class='ident'>usize</span>, <span class='ident'>key</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>] ) <span class='op'>-></span> <span class='ident'>Blake2b</span> {
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>outlen</span> <span class='op'>></span> <span class='number'>0</span> <span class='op'>&&</span> <span class='ident'>outlen</span> <span class='op'><=</span> <span class='ident'>BLAKE2B_OUTBYTES</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>key</span>.<span class='ident'>len</span>() <span class='op'>></span> <span class='number'>0</span> <span class='op'>&&</span> <span class='ident'>key</span>.<span class='ident'>len</span>() <span class='op'><=</span> <span class='ident'>BLAKE2B_KEYBYTES</span>);
<span class='kw'>let</span> <span class='ident'>param</span> <span class='op'>=</span> <span class='ident'>Blake2bParam</span> {
<span class='ident'>digest_length</span>: <span class='ident'>outlen</span> <span class='kw'>as</span> <span class='ident'>u8</span>,
<span class='ident'>key_length</span>: <span class='ident'>key</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>u8</span>,
<span class='ident'>fanout</span>: <span class='number'>1</span>,
<span class='ident'>depth</span>: <span class='number'>1</span>,
<span class='ident'>leaf_length</span>: <span class='number'>0</span>,
<span class='ident'>node_offset</span>: <span class='number'>0</span>,
<span class='ident'>node_depth</span>: <span class='number'>0</span>,
<span class='ident'>inner_length</span>: <span class='number'>0</span>,
<span class='ident'>reserved</span>: [<span class='number'>0</span>; <span class='number'>14</span>],
<span class='ident'>salt</span>: [<span class='number'>0</span>; <span class='ident'>BLAKE2B_SALTBYTES</span>],
<span class='ident'>personal</span>: [<span class='number'>0</span>; <span class='ident'>BLAKE2B_PERSONALBYTES</span>],
};
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>b</span> <span class='op'>=</span> <span class='ident'>Blake2b</span>::<span class='ident'>init_param</span>(<span class='ident'>param</span>, <span class='ident'>key</span>);
<span class='ident'>b</span>.<span class='ident'>apply_key</span>();
<span class='ident'>b</span>
}
<span class='kw'>fn</span> <span class='ident'>compress</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>ms</span>: [<span class='ident'>u64</span>; <span class='number'>16</span>] <span class='op'>=</span> [<span class='number'>0</span>; <span class='number'>16</span>];
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>vs</span>: [<span class='ident'>u64</span>; <span class='number'>16</span>] <span class='op'>=</span> [<span class='number'>0</span>; <span class='number'>16</span>];
<span class='ident'>read_u64v_le</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>ms</span>, <span class='kw-2'>&</span><span class='self'>self</span>.<span class='ident'>buf</span>[<span class='number'>0</span>..<span class='ident'>BLAKE2B_BLOCKBYTES</span>]);
<span class='kw'>for</span> (<span class='ident'>v</span>, <span class='ident'>h</span>) <span class='kw'>in</span> <span class='ident'>vs</span>.<span class='ident'>iter_mut</span>().<span class='ident'>zip</span>(<span class='self'>self</span>.<span class='ident'>h</span>.<span class='ident'>iter</span>()) {
<span class='kw-2'>*</span><span class='ident'>v</span> <span class='op'>=</span> <span class='kw-2'>*</span><span class='ident'>h</span>;
}
<span class='ident'>vs</span>[ <span class='number'>8</span>] <span class='op'>=</span> <span class='ident'>IV</span>[<span class='number'>0</span>];
<span class='ident'>vs</span>[ <span class='number'>9</span>] <span class='op'>=</span> <span class='ident'>IV</span>[<span class='number'>1</span>];
<span class='ident'>vs</span>[<span class='number'>10</span>] <span class='op'>=</span> <span class='ident'>IV</span>[<span class='number'>2</span>];
<span class='ident'>vs</span>[<span class='number'>11</span>] <span class='op'>=</span> <span class='ident'>IV</span>[<span class='number'>3</span>];
<span class='ident'>vs</span>[<span class='number'>12</span>] <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>t</span>[<span class='number'>0</span>] <span class='op'>^</span> <span class='ident'>IV</span>[<span class='number'>4</span>];
<span class='ident'>vs</span>[<span class='number'>13</span>] <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>t</span>[<span class='number'>1</span>] <span class='op'>^</span> <span class='ident'>IV</span>[<span class='number'>5</span>];
<span class='ident'>vs</span>[<span class='number'>14</span>] <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>f</span>[<span class='number'>0</span>] <span class='op'>^</span> <span class='ident'>IV</span>[<span class='number'>6</span>];
<span class='ident'>vs</span>[<span class='number'>15</span>] <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>f</span>[<span class='number'>1</span>] <span class='op'>^</span> <span class='ident'>IV</span>[<span class='number'>7</span>];
<span class='macro'>round</span><span class='macro'>!</span>( <span class='number'>0</span>, <span class='ident'>vs</span>, <span class='ident'>ms</span> );
<span class='macro'>round</span><span class='macro'>!</span>( <span class='number'>1</span>, <span class='ident'>vs</span>, <span class='ident'>ms</span> );
<span class='macro'>round</span><span class='macro'>!</span>( <span class='number'>2</span>, <span class='ident'>vs</span>, <span class='ident'>ms</span> );
<span class='macro'>round</span><span class='macro'>!</span>( <span class='number'>3</span>, <span class='ident'>vs</span>, <span class='ident'>ms</span> );
<span class='macro'>round</span><span class='macro'>!</span>( <span class='number'>4</span>, <span class='ident'>vs</span>, <span class='ident'>ms</span> );
<span class='macro'>round</span><span class='macro'>!</span>( <span class='number'>5</span>, <span class='ident'>vs</span>, <span class='ident'>ms</span> );
<span class='macro'>round</span><span class='macro'>!</span>( <span class='number'>6</span>, <span class='ident'>vs</span>, <span class='ident'>ms</span> );
<span class='macro'>round</span><span class='macro'>!</span>( <span class='number'>7</span>, <span class='ident'>vs</span>, <span class='ident'>ms</span> );
<span class='macro'>round</span><span class='macro'>!</span>( <span class='number'>8</span>, <span class='ident'>vs</span>, <span class='ident'>ms</span> );
<span class='macro'>round</span><span class='macro'>!</span>( <span class='number'>9</span>, <span class='ident'>vs</span>, <span class='ident'>ms</span> );
<span class='macro'>round</span><span class='macro'>!</span>( <span class='number'>10</span>, <span class='ident'>vs</span>, <span class='ident'>ms</span> );
<span class='macro'>round</span><span class='macro'>!</span>( <span class='number'>11</span>, <span class='ident'>vs</span>, <span class='ident'>ms</span> );
<span class='kw'>for</span> (<span class='ident'>h_elem</span>, (<span class='ident'>v_low</span>, <span class='ident'>v_high</span>)) <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>h</span>.<span class='ident'>iter_mut</span>().<span class='ident'>zip</span>( <span class='ident'>vs</span>[<span class='number'>0</span>..<span class='number'>8</span>].<span class='ident'>iter</span>().<span class='ident'>zip</span>(<span class='ident'>vs</span>[<span class='number'>8</span>..<span class='number'>16</span>].<span class='ident'>iter</span>()) ) {
<span class='kw-2'>*</span><span class='ident'>h_elem</span> <span class='op'>=</span> <span class='kw-2'>*</span><span class='ident'>h_elem</span> <span class='op'>^</span> <span class='kw-2'>*</span><span class='ident'>v_low</span> <span class='op'>^</span> <span class='kw-2'>*</span><span class='ident'>v_high</span>;
}
}
<span class='kw'>fn</span> <span class='ident'>update</span>( <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='kw-2'>mut</span> <span class='ident'>input</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>] ) {
<span class='kw'>while</span> <span class='ident'>input</span>.<span class='ident'>len</span>() <span class='op'>></span> <span class='number'>0</span> {
<span class='kw'>let</span> <span class='ident'>left</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>buflen</span>;
<span class='kw'>let</span> <span class='ident'>fill</span> <span class='op'>=</span> <span class='number'>2</span> <span class='op'>*</span> <span class='ident'>BLAKE2B_BLOCKBYTES</span> <span class='op'>-</span> <span class='ident'>left</span>;
<span class='kw'>if</span> <span class='ident'>input</span>.<span class='ident'>len</span>() <span class='op'>></span> <span class='ident'>fill</span> {
<span class='ident'>copy_memory</span>(<span class='kw-2'>&</span><span class='ident'>input</span>[<span class='number'>0</span>..<span class='ident'>fill</span>], <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>.<span class='ident'>buf</span>[<span class='ident'>left</span>..]); <span class='comment'>// Fill buffer</span>
<span class='self'>self</span>.<span class='ident'>buflen</span> <span class='op'>+=</span> <span class='ident'>fill</span>;
<span class='self'>self</span>.<span class='ident'>increment_counter</span>( <span class='ident'>BLAKE2B_BLOCKBYTES</span> <span class='kw'>as</span> <span class='ident'>u64</span>);
<span class='self'>self</span>.<span class='ident'>compress</span>();
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>halves</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>buf</span>.<span class='ident'>chunks_mut</span>(<span class='ident'>BLAKE2B_BLOCKBYTES</span>);
<span class='kw'>let</span> <span class='ident'>first_half</span> <span class='op'>=</span> <span class='ident'>halves</span>.<span class='ident'>next</span>().<span class='ident'>unwrap</span>();
<span class='kw'>let</span> <span class='ident'>second_half</span> <span class='op'>=</span> <span class='ident'>halves</span>.<span class='ident'>next</span>().<span class='ident'>unwrap</span>();
<span class='ident'>copy_memory</span>(<span class='ident'>second_half</span>, <span class='ident'>first_half</span>);
<span class='self'>self</span>.<span class='ident'>buflen</span> <span class='op'>-=</span> <span class='ident'>BLAKE2B_BLOCKBYTES</span>;
<span class='ident'>input</span> <span class='op'>=</span> <span class='kw-2'>&</span><span class='ident'>input</span>[<span class='ident'>fill</span>..<span class='ident'>input</span>.<span class='ident'>len</span>()];
} <span class='kw'>else</span> { <span class='comment'>// inlen <= fill</span>
<span class='ident'>copy_memory</span>(<span class='ident'>input</span>, <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>.<span class='ident'>buf</span>[<span class='ident'>left</span>..]);
<span class='self'>self</span>.<span class='ident'>buflen</span> <span class='op'>+=</span> <span class='ident'>input</span>.<span class='ident'>len</span>();
<span class='kw'>break</span>;
}
}
}
<span class='kw'>fn</span> <span class='ident'>finalize</span>( <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>out</span>: <span class='kw-2'>&</span><span class='kw-2'>mut</span> [<span class='ident'>u8</span>] ) {
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>out</span>.<span class='ident'>len</span>() <span class='op'>==</span> <span class='self'>self</span>.<span class='ident'>digest_length</span> <span class='kw'>as</span> <span class='ident'>usize</span>);
<span class='kw'>if</span> <span class='op'>!</span><span class='self'>self</span>.<span class='ident'>computed</span> {
<span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>buflen</span> <span class='op'>></span> <span class='ident'>BLAKE2B_BLOCKBYTES</span> {
<span class='self'>self</span>.<span class='ident'>increment_counter</span>(<span class='ident'>BLAKE2B_BLOCKBYTES</span> <span class='kw'>as</span> <span class='ident'>u64</span>);
<span class='self'>self</span>.<span class='ident'>compress</span>();
<span class='self'>self</span>.<span class='ident'>buflen</span> <span class='op'>-=</span> <span class='ident'>BLAKE2B_BLOCKBYTES</span>;
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>halves</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>buf</span>.<span class='ident'>chunks_mut</span>(<span class='ident'>BLAKE2B_BLOCKBYTES</span>);
<span class='kw'>let</span> <span class='ident'>first_half</span> <span class='op'>=</span> <span class='ident'>halves</span>.<span class='ident'>next</span>().<span class='ident'>unwrap</span>();
<span class='kw'>let</span> <span class='ident'>second_half</span> <span class='op'>=</span> <span class='ident'>halves</span>.<span class='ident'>next</span>().<span class='ident'>unwrap</span>();
<span class='ident'>copy_memory</span>(<span class='ident'>second_half</span>, <span class='ident'>first_half</span>);
}
<span class='kw'>let</span> <span class='ident'>incby</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>buflen</span> <span class='kw'>as</span> <span class='ident'>u64</span>;
<span class='self'>self</span>.<span class='ident'>increment_counter</span>(<span class='ident'>incby</span>);
<span class='self'>self</span>.<span class='ident'>set_lastblock</span>();
<span class='kw'>for</span> <span class='ident'>b</span> <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>buf</span>[<span class='self'>self</span>.<span class='ident'>buflen</span>..].<span class='ident'>iter_mut</span>() {
<span class='kw-2'>*</span><span class='ident'>b</span> <span class='op'>=</span> <span class='number'>0</span>;
}
<span class='self'>self</span>.<span class='ident'>compress</span>();
<span class='ident'>write_u64v_le</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>.<span class='ident'>buf</span>[<span class='number'>0</span>..<span class='number'>64</span>], <span class='kw-2'>&</span><span class='self'>self</span>.<span class='ident'>h</span>);
<span class='self'>self</span>.<span class='ident'>computed</span> <span class='op'>=</span> <span class='bool-val'>true</span>;
}
<span class='kw'>let</span> <span class='ident'>outlen</span> <span class='op'>=</span> <span class='ident'>out</span>.<span class='ident'>len</span>();
<span class='ident'>copy_memory</span>(<span class='kw-2'>&</span><span class='self'>self</span>.<span class='ident'>buf</span>[<span class='number'>0</span>..<span class='ident'>outlen</span>], <span class='ident'>out</span>);
}
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>reset</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) {
<span class='kw'>for</span> (<span class='ident'>h_elem</span>, <span class='ident'>iv_elem</span>) <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>h</span>.<span class='ident'>iter_mut</span>().<span class='ident'>zip</span>(<span class='ident'>IV</span>.<span class='ident'>iter</span>()) {
<span class='kw-2'>*</span><span class='ident'>h_elem</span> <span class='op'>=</span> <span class='kw-2'>*</span><span class='ident'>iv_elem</span>;
}
<span class='kw'>for</span> <span class='ident'>t_elem</span> <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>t</span>.<span class='ident'>iter_mut</span>() {
<span class='kw-2'>*</span><span class='ident'>t_elem</span> <span class='op'>=</span> <span class='number'>0</span>;
}
<span class='kw'>for</span> <span class='ident'>f_elem</span> <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>f</span>.<span class='ident'>iter_mut</span>() {
<span class='kw-2'>*</span><span class='ident'>f_elem</span> <span class='op'>=</span> <span class='number'>0</span>;
}
<span class='kw'>for</span> <span class='ident'>b</span> <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>buf</span>.<span class='ident'>iter_mut</span>() {
<span class='kw-2'>*</span><span class='ident'>b</span> <span class='op'>=</span> <span class='number'>0</span>;
}
<span class='self'>self</span>.<span class='ident'>buflen</span> <span class='op'>=</span> <span class='number'>0</span>;
<span class='self'>self</span>.<span class='ident'>last_node</span> <span class='op'>=</span> <span class='number'>0</span>;
<span class='self'>self</span>.<span class='ident'>computed</span> <span class='op'>=</span> <span class='bool-val'>false</span>;
<span class='self'>self</span>.<span class='ident'>apply_param</span>();
<span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>key_length</span> <span class='op'>></span> <span class='number'>0</span> {
<span class='self'>self</span>.<span class='ident'>apply_key</span>();
}
}
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>blake2b</span>(<span class='ident'>out</span>: <span class='kw-2'>&</span><span class='kw-2'>mut</span>[<span class='ident'>u8</span>], <span class='ident'>input</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>], <span class='ident'>key</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>]) {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>hasher</span> : <span class='ident'>Blake2b</span> <span class='op'>=</span> <span class='kw'>if</span> <span class='ident'>key</span>.<span class='ident'>len</span>() <span class='op'>></span> <span class='number'>0</span> { <span class='ident'>Blake2b</span>::<span class='ident'>new_keyed</span>(<span class='ident'>out</span>.<span class='ident'>len</span>(), <span class='ident'>key</span>) } <span class='kw'>else</span> { <span class='ident'>Blake2b</span>::<span class='ident'>new</span>(<span class='ident'>out</span>.<span class='ident'>len</span>()) };
<span class='ident'>hasher</span>.<span class='ident'>update</span>(<span class='ident'>input</span>);
<span class='ident'>hasher</span>.<span class='ident'>finalize</span>(<span class='ident'>out</span>);
}
}
<span class='kw'>impl</span> <span class='ident'>Digest</span> <span class='kw'>for</span> <span class='ident'>Blake2b</span> {
<span class='kw'>fn</span> <span class='ident'>reset</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) { <span class='ident'>Blake2b</span>::<span class='ident'>reset</span>(<span class='self'>self</span>); }
<span class='kw'>fn</span> <span class='ident'>input</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>msg</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>]) { <span class='self'>self</span>.<span class='ident'>update</span>(<span class='ident'>msg</span>); }
<span class='kw'>fn</span> <span class='ident'>result</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>out</span>: <span class='kw-2'>&</span><span class='kw-2'>mut</span> [<span class='ident'>u8</span>]) { <span class='self'>self</span>.<span class='ident'>finalize</span>(<span class='ident'>out</span>); }
<span class='kw'>fn</span> <span class='ident'>output_bits</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>usize</span> { <span class='number'>8</span> <span class='op'>*</span> (<span class='self'>self</span>.<span class='ident'>digest_length</span> <span class='kw'>as</span> <span class='ident'>usize</span>) }
<span class='kw'>fn</span> <span class='ident'>block_size</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>usize</span> { <span class='number'>8</span> <span class='op'>*</span> <span class='ident'>BLAKE2B_BLOCKBYTES</span> }
}
<span class='kw'>impl</span> <span class='ident'>Mac</span> <span class='kw'>for</span> <span class='ident'>Blake2b</span> {
<span class='doccomment'>/**
* Process input data.
*
* # Arguments
* * data - The input data to process.
*
*/</span>
<span class='kw'>fn</span> <span class='ident'>input</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>data</span>: <span class='kw-2'>&</span>[<span class='ident'>u8</span>]) {
<span class='self'>self</span>.<span class='ident'>update</span>(<span class='ident'>data</span>);
}
<span class='doccomment'>/**
* Reset the Mac state to begin processing another input stream.
*/</span>
<span class='kw'>fn</span> <span class='ident'>reset</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) {
<span class='ident'>Blake2b</span>::<span class='ident'>reset</span>(<span class='self'>self</span>);
}
<span class='doccomment'>/**
* Obtain the result of a Mac computation as a MacResult.
*/</span>
<span class='kw'>fn</span> <span class='ident'>result</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>MacResult</span> {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>mac</span>: <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>u8</span><span class='op'>></span> <span class='op'>=</span> <span class='ident'>repeat</span>(<span class='number'>0</span>).<span class='ident'>take</span>(<span class='self'>self</span>.<span class='ident'>digest_length</span> <span class='kw'>as</span> <span class='ident'>usize</span>).<span class='ident'>collect</span>();
<span class='self'>self</span>.<span class='ident'>raw_result</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>mac</span>);
<span class='ident'>MacResult</span>::<span class='ident'>new_from_owned</span>(<span class='ident'>mac</span>)
}
<span class='doccomment'>/**
* Obtain the result of a Mac computation as [u8]. This method should be used very carefully
* since incorrect use of the Mac code could result in permitting a timing attack which defeats
* the security provided by a Mac function.
*/</span>
<span class='kw'>fn</span> <span class='ident'>raw_result</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>output</span>: <span class='kw-2'>&</span><span class='kw-2'>mut</span> [<span class='ident'>u8</span>]) {
<span class='self'>self</span>.<span class='ident'>finalize</span>(<span class='ident'>output</span>);
}
<span class='doccomment'>/**
* Get the size of the Mac code, in bytes.
*/</span>
<span class='kw'>fn</span> <span class='ident'>output_bytes</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>usize</span> { <span class='self'>self</span>.<span class='ident'>digest_length</span> <span class='kw'>as</span> <span class='ident'>usize</span> }
}
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>test</span>)]</span>
<span class='kw'>mod</span> <span class='ident'>digest_tests</span> {
<span class='comment'>//use cryptoutil::test::test_digest_1million_random;</span>
<span class='kw'>use</span> <span class='ident'>blake2b</span>::<span class='ident'>Blake2b</span>;
<span class='kw'>use</span> <span class='ident'>digest</span>::<span class='ident'>Digest</span>;
<span class='kw'>use</span> <span class='ident'>serialize</span>::<span class='ident'>hex</span>::<span class='ident'>FromHex</span>;
<span class='kw'>struct</span> <span class='ident'>Test</span> {
<span class='ident'>input</span>: <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>u8</span><span class='op'>></span>,
<span class='ident'>output</span>: <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>u8</span><span class='op'>></span>,
<span class='ident'>key</span>: <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>Vec</span><span class='op'><</span><span class='ident'>u8</span><span class='op'>>></span>,
}
<span class='kw'>fn</span> <span class='ident'>test_hash</span>(<span class='ident'>tests</span>: <span class='kw-2'>&</span>[<span class='ident'>Test</span>]) {
<span class='kw'>for</span> <span class='ident'>t</span> <span class='kw'>in</span> <span class='ident'>tests</span> {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>sh</span> <span class='op'>=</span> <span class='kw'>match</span> <span class='ident'>t</span>.<span class='ident'>key</span> {
<span class='prelude-val'>Some</span>(<span class='kw-2'>ref</span> <span class='ident'>key</span>) <span class='op'>=></span> <span class='ident'>Blake2b</span>::<span class='ident'>new_keyed</span>(<span class='number'>64</span>, <span class='kw-2'>&</span><span class='ident'>key</span>),
<span class='prelude-val'>None</span> <span class='op'>=></span> <span class='ident'>Blake2b</span>::<span class='ident'>new</span>(<span class='number'>64</span>)
};
<span class='comment'>// Test that it works when accepting the message all at once</span>
<span class='ident'>sh</span>.<span class='ident'>input</span>(<span class='kw-2'>&</span><span class='ident'>t</span>.<span class='ident'>input</span>[..]);
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>out</span> <span class='op'>=</span> [<span class='number'>0u8</span>; <span class='number'>64</span>];
<span class='ident'>sh</span>.<span class='ident'>result</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>out</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='kw-2'>&</span><span class='ident'>out</span>[..] <span class='op'>==</span> <span class='kw-2'>&</span><span class='ident'>t</span>.<span class='ident'>output</span>[..]);
<span class='ident'>sh</span>.<span class='ident'>reset</span>();
<span class='comment'>// Test that it works when accepting the message in pieces</span>
<span class='kw'>let</span> <span class='ident'>len</span> <span class='op'>=</span> <span class='ident'>t</span>.<span class='ident'>input</span>.<span class='ident'>len</span>();
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>left</span> <span class='op'>=</span> <span class='ident'>len</span>;
<span class='kw'>while</span> <span class='ident'>left</span> <span class='op'>></span> <span class='number'>0</span> {
<span class='kw'>let</span> <span class='ident'>take</span> <span class='op'>=</span> (<span class='ident'>left</span> <span class='op'>+</span> <span class='number'>1</span>) <span class='op'>/</span> <span class='number'>2</span>;
<span class='ident'>sh</span>.<span class='ident'>input</span>(<span class='kw-2'>&</span><span class='ident'>t</span>.<span class='ident'>input</span>[<span class='ident'>len</span> <span class='op'>-</span> <span class='ident'>left</span>..<span class='ident'>take</span> <span class='op'>+</span> <span class='ident'>len</span> <span class='op'>-</span> <span class='ident'>left</span>]);
<span class='ident'>left</span> <span class='op'>-=</span> <span class='ident'>take</span>;
}
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>out</span> <span class='op'>=</span> [<span class='number'>0u8</span>; <span class='number'>64</span>];
<span class='ident'>sh</span>.<span class='ident'>result</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>out</span>);
<span class='macro'>assert</span><span class='macro'>!</span>(<span class='kw-2'>&</span><span class='ident'>out</span>[..] <span class='op'>==</span> <span class='kw-2'>&</span><span class='ident'>t</span>.<span class='ident'>output</span>[..]);
<span class='ident'>sh</span>.<span class='ident'>reset</span>();
}
}
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_blake2b_digest</span>() {
<span class='kw'>let</span> <span class='ident'>tests</span> <span class='op'>=</span> <span class='macro'>vec</span><span class='macro'>!</span>[
<span class='comment'>// Examples from wikipedia</span>
<span class='ident'>Test</span> {
<span class='ident'>input</span>: <span class='macro'>vec</span><span class='macro'>!</span>[],
<span class='ident'>output</span>: <span class='string'>"786a02f742015903c6c6fd852552d272\
912f4740e15847618a86e217f71f5419\
d25e1031afee585313896444934eb04b\
903a685b1448b755d56f701afe9be2ce"</span>.<span class='ident'>from_hex</span>().<span class='ident'>unwrap</span>(),
<span class='ident'>key</span>: <span class='prelude-val'>None</span>
},
<span class='ident'>Test</span> {
<span class='ident'>input</span>: <span class='string'>"The quick brown fox jumps over the lazy dog"</span>.<span class='ident'>as_bytes</span>().<span class='ident'>to_vec</span>(),
<span class='ident'>output</span>: <span class='string'>"a8add4bdddfd93e4877d2746e62817b1\
16364a1fa7bc148d95090bc7333b3673\
f82401cf7aa2e4cb1ecd90296e3f14cb\
5413f8ed77be73045b13914cdcd6a918"</span>.<span class='ident'>from_hex</span>().<span class='ident'>unwrap</span>(),
<span class='ident'>key</span>: <span class='prelude-val'>None</span>
},
<span class='comment'>// from: https://github.com/BLAKE2/BLAKE2/blob/master/testvectors/blake2b-test.txt</span>
<span class='ident'>Test</span> {
<span class='ident'>input</span>: <span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>0x00</span>, <span class='number'>0x01</span>, <span class='number'>0x02</span>, <span class='number'>0x03</span>, <span class='number'>0x04</span>, <span class='number'>0x05</span>, <span class='number'>0x06</span>, <span class='number'>0x07</span>, <span class='number'>0x08</span>, <span class='number'>0x09</span>, <span class='number'>0x0a</span>, <span class='number'>0x0b</span>,
<span class='number'>0x0c</span>, <span class='number'>0x0d</span>, <span class='number'>0x0e</span>, <span class='number'>0x0f</span>, <span class='number'>0x10</span>, <span class='number'>0x11</span>, <span class='number'>0x12</span>, <span class='number'>0x13</span>, <span class='number'>0x14</span>, <span class='number'>0x15</span>, <span class='number'>0x16</span>, <span class='number'>0x17</span>,
<span class='number'>0x18</span>, <span class='number'>0x19</span>, <span class='number'>0x1a</span>, <span class='number'>0x1b</span>, <span class='number'>0x1c</span>, <span class='number'>0x1d</span>, <span class='number'>0x1e</span>, <span class='number'>0x1f</span>, <span class='number'>0x20</span>, <span class='number'>0x21</span>, <span class='number'>0x22</span>, <span class='number'>0x23</span>,
<span class='number'>0x24</span>, <span class='number'>0x25</span>, <span class='number'>0x26</span>, <span class='number'>0x27</span>, <span class='number'>0x28</span>, <span class='number'>0x29</span>, <span class='number'>0x2a</span>, <span class='number'>0x2b</span>, <span class='number'>0x2c</span>, <span class='number'>0x2d</span>, <span class='number'>0x2e</span>, <span class='number'>0x2f</span>,
<span class='number'>0x30</span>, <span class='number'>0x31</span>, <span class='number'>0x32</span>, <span class='number'>0x33</span>, <span class='number'>0x34</span>, <span class='number'>0x35</span>, <span class='number'>0x36</span>, <span class='number'>0x37</span>, <span class='number'>0x38</span>, <span class='number'>0x39</span>, <span class='number'>0x3a</span>, <span class='number'>0x3b</span>,
<span class='number'>0x3c</span>, <span class='number'>0x3d</span>, <span class='number'>0x3e</span>, <span class='number'>0x3f</span>, <span class='number'>0x40</span>, <span class='number'>0x41</span>, <span class='number'>0x42</span>, <span class='number'>0x43</span>, <span class='number'>0x44</span>, <span class='number'>0x45</span>, <span class='number'>0x46</span>, <span class='number'>0x47</span>,
<span class='number'>0x48</span>, <span class='number'>0x49</span>, <span class='number'>0x4a</span>, <span class='number'>0x4b</span>, <span class='number'>0x4c</span>, <span class='number'>0x4d</span>, <span class='number'>0x4e</span>, <span class='number'>0x4f</span>, <span class='number'>0x50</span>, <span class='number'>0x51</span>, <span class='number'>0x52</span>, <span class='number'>0x53</span>,
<span class='number'>0x54</span>, <span class='number'>0x55</span>, <span class='number'>0x56</span>, <span class='number'>0x57</span>, <span class='number'>0x58</span>, <span class='number'>0x59</span>, <span class='number'>0x5a</span>, <span class='number'>0x5b</span>, <span class='number'>0x5c</span>, <span class='number'>0x5d</span>, <span class='number'>0x5e</span>, <span class='number'>0x5f</span>,
<span class='number'>0x60</span>, <span class='number'>0x61</span>, <span class='number'>0x62</span>, <span class='number'>0x63</span>, <span class='number'>0x64</span>, <span class='number'>0x65</span>, <span class='number'>0x66</span>, <span class='number'>0x67</span>, <span class='number'>0x68</span>, <span class='number'>0x69</span>, <span class='number'>0x6a</span>, <span class='number'>0x6b</span>,
<span class='number'>0x6c</span>, <span class='number'>0x6d</span>, <span class='number'>0x6e</span>, <span class='number'>0x6f</span>, <span class='number'>0x70</span>, <span class='number'>0x71</span>, <span class='number'>0x72</span>, <span class='number'>0x73</span>, <span class='number'>0x74</span>, <span class='number'>0x75</span>, <span class='number'>0x76</span>, <span class='number'>0x77</span>,
<span class='number'>0x78</span>, <span class='number'>0x79</span>, <span class='number'>0x7a</span>, <span class='number'>0x7b</span>, <span class='number'>0x7c</span>, <span class='number'>0x7d</span>, <span class='number'>0x7e</span>, <span class='number'>0x7f</span>, <span class='number'>0x80</span>, <span class='number'>0x81</span>, <span class='number'>0x82</span>, <span class='number'>0x83</span>,
<span class='number'>0x84</span>, <span class='number'>0x85</span>, <span class='number'>0x86</span>, <span class='number'>0x87</span>, <span class='number'>0x88</span>, <span class='number'>0x89</span>, <span class='number'>0x8a</span>, <span class='number'>0x8b</span>, <span class='number'>0x8c</span>, <span class='number'>0x8d</span>, <span class='number'>0x8e</span>, <span class='number'>0x8f</span>,
<span class='number'>0x90</span>, <span class='number'>0x91</span>, <span class='number'>0x92</span>, <span class='number'>0x93</span>, <span class='number'>0x94</span>, <span class='number'>0x95</span>, <span class='number'>0x96</span>, <span class='number'>0x97</span>, <span class='number'>0x98</span>, <span class='number'>0x99</span>, <span class='number'>0x9a</span>, <span class='number'>0x9b</span>,
<span class='number'>0x9c</span>, <span class='number'>0x9d</span>, <span class='number'>0x9e</span>, <span class='number'>0x9f</span>, <span class='number'>0xa0</span>, <span class='number'>0xa1</span>, <span class='number'>0xa2</span>, <span class='number'>0xa3</span>, <span class='number'>0xa4</span>, <span class='number'>0xa5</span>, <span class='number'>0xa6</span>, <span class='number'>0xa7</span>,
<span class='number'>0xa8</span>, <span class='number'>0xa9</span>, <span class='number'>0xaa</span>, <span class='number'>0xab</span>, <span class='number'>0xac</span>, <span class='number'>0xad</span>, <span class='number'>0xae</span>, <span class='number'>0xaf</span>, <span class='number'>0xb0</span>, <span class='number'>0xb1</span>, <span class='number'>0xb2</span>, <span class='number'>0xb3</span>,
<span class='number'>0xb4</span>, <span class='number'>0xb5</span>, <span class='number'>0xb6</span>, <span class='number'>0xb7</span>, <span class='number'>0xb8</span>, <span class='number'>0xb9</span>, <span class='number'>0xba</span>, <span class='number'>0xbb</span>, <span class='number'>0xbc</span>, <span class='number'>0xbd</span>, <span class='number'>0xbe</span>, <span class='number'>0xbf</span>,
<span class='number'>0xc0</span>, <span class='number'>0xc1</span>, <span class='number'>0xc2</span>, <span class='number'>0xc3</span>, <span class='number'>0xc4</span>, <span class='number'>0xc5</span>, <span class='number'>0xc6</span>, <span class='number'>0xc7</span>, <span class='number'>0xc8</span>, <span class='number'>0xc9</span>, <span class='number'>0xca</span>, <span class='number'>0xcb</span>,
<span class='number'>0xcc</span>, <span class='number'>0xcd</span>, <span class='number'>0xce</span>, <span class='number'>0xcf</span>, <span class='number'>0xd0</span>, <span class='number'>0xd1</span>, <span class='number'>0xd2</span>, <span class='number'>0xd3</span>, <span class='number'>0xd4</span>, <span class='number'>0xd5</span>, <span class='number'>0xd6</span>, <span class='number'>0xd7</span>,
<span class='number'>0xd8</span>, <span class='number'>0xd9</span>, <span class='number'>0xda</span>, <span class='number'>0xdb</span>, <span class='number'>0xdc</span>, <span class='number'>0xdd</span>, <span class='number'>0xde</span>, <span class='number'>0xdf</span>, <span class='number'>0xe0</span>, <span class='number'>0xe1</span>, <span class='number'>0xe2</span>, <span class='number'>0xe3</span>,
<span class='number'>0xe4</span>, <span class='number'>0xe5</span>, <span class='number'>0xe6</span>, <span class='number'>0xe7</span>, <span class='number'>0xe8</span>, <span class='number'>0xe9</span>, <span class='number'>0xea</span>, <span class='number'>0xeb</span>, <span class='number'>0xec</span>, <span class='number'>0xed</span>, <span class='number'>0xee</span>, <span class='number'>0xef</span>,
<span class='number'>0xf0</span>, <span class='number'>0xf1</span>, <span class='number'>0xf2</span>, <span class='number'>0xf3</span>, <span class='number'>0xf4</span>, <span class='number'>0xf5</span>, <span class='number'>0xf6</span>, <span class='number'>0xf7</span>, <span class='number'>0xf8</span>, <span class='number'>0xf9</span>, <span class='number'>0xfa</span>, <span class='number'>0xfb</span>,
<span class='number'>0xfc</span>, <span class='number'>0xfd</span>, <span class='number'>0xfe</span>],
<span class='ident'>output</span>: <span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>0x14</span>, <span class='number'>0x27</span>, <span class='number'>0x09</span>, <span class='number'>0xd6</span>, <span class='number'>0x2e</span>, <span class='number'>0x28</span>, <span class='number'>0xfc</span>, <span class='number'>0xcc</span>, <span class='number'>0xd0</span>, <span class='number'>0xaf</span>, <span class='number'>0x97</span>,
<span class='number'>0xfa</span>, <span class='number'>0xd0</span>, <span class='number'>0xf8</span>, <span class='number'>0x46</span>, <span class='number'>0x5b</span>, <span class='number'>0x97</span>, <span class='number'>0x1e</span>, <span class='number'>0x82</span>, <span class='number'>0x20</span>, <span class='number'>0x1d</span>, <span class='number'>0xc5</span>,
<span class='number'>0x10</span>, <span class='number'>0x70</span>, <span class='number'>0xfa</span>, <span class='number'>0xa0</span>, <span class='number'>0x37</span>, <span class='number'>0x2a</span>, <span class='number'>0xa4</span>, <span class='number'>0x3e</span>, <span class='number'>0x92</span>, <span class='number'>0x48</span>, <span class='number'>0x4b</span>,
<span class='number'>0xe1</span>, <span class='number'>0xc1</span>, <span class='number'>0xe7</span>, <span class='number'>0x3b</span>, <span class='number'>0xa1</span>, <span class='number'>0x09</span>, <span class='number'>0x06</span>, <span class='number'>0xd5</span>, <span class='number'>0xd1</span>, <span class='number'>0x85</span>, <span class='number'>0x3d</span>,
<span class='number'>0xb6</span>, <span class='number'>0xa4</span>, <span class='number'>0x10</span>, <span class='number'>0x6e</span>, <span class='number'>0x0a</span>, <span class='number'>0x7b</span>, <span class='number'>0xf9</span>, <span class='number'>0x80</span>, <span class='number'>0x0d</span>, <span class='number'>0x37</span>, <span class='number'>0x3d</span>,
<span class='number'>0x6d</span>, <span class='number'>0xee</span>, <span class='number'>0x2d</span>, <span class='number'>0x46</span>, <span class='number'>0xd6</span>, <span class='number'>0x2e</span>, <span class='number'>0xf2</span>, <span class='number'>0xa4</span>, <span class='number'>0x61</span>],
<span class='ident'>key</span>: <span class='prelude-val'>Some</span>(<span class='macro'>vec</span><span class='macro'>!</span>[<span class='number'>0x00</span>, <span class='number'>0x01</span>, <span class='number'>0x02</span>, <span class='number'>0x03</span>, <span class='number'>0x04</span>, <span class='number'>0x05</span>, <span class='number'>0x06</span>, <span class='number'>0x07</span>, <span class='number'>0x08</span>, <span class='number'>0x09</span>, <span class='number'>0x0a</span>,
<span class='number'>0x0b</span>, <span class='number'>0x0c</span>, <span class='number'>0x0d</span>, <span class='number'>0x0e</span>, <span class='number'>0x0f</span>, <span class='number'>0x10</span>, <span class='number'>0x11</span>, <span class='number'>0x12</span>, <span class='number'>0x13</span>, <span class='number'>0x14</span>, <span class='number'>0x15</span>,
<span class='number'>0x16</span>, <span class='number'>0x17</span>, <span class='number'>0x18</span>, <span class='number'>0x19</span>, <span class='number'>0x1a</span>, <span class='number'>0x1b</span>, <span class='number'>0x1c</span>, <span class='number'>0x1d</span>, <span class='number'>0x1e</span>, <span class='number'>0x1f</span>, <span class='number'>0x20</span>,
<span class='number'>0x21</span>, <span class='number'>0x22</span>, <span class='number'>0x23</span>, <span class='number'>0x24</span>, <span class='number'>0x25</span>, <span class='number'>0x26</span>, <span class='number'>0x27</span>, <span class='number'>0x28</span>, <span class='number'>0x29</span>, <span class='number'>0x2a</span>, <span class='number'>0x2b</span>,
<span class='number'>0x2c</span>, <span class='number'>0x2d</span>, <span class='number'>0x2e</span>, <span class='number'>0x2f</span>, <span class='number'>0x30</span>, <span class='number'>0x31</span>, <span class='number'>0x32</span>, <span class='number'>0x33</span>, <span class='number'>0x34</span>, <span class='number'>0x35</span>, <span class='number'>0x36</span>,
<span class='number'>0x37</span>, <span class='number'>0x38</span>, <span class='number'>0x39</span>, <span class='number'>0x3a</span>, <span class='number'>0x3b</span>, <span class='number'>0x3c</span>, <span class='number'>0x3d</span>, <span class='number'>0x3e</span>, <span class='number'>0x3f</span>])
},
];
<span class='ident'>test_hash</span>(<span class='kw-2'>&</span><span class='ident'>tests</span>[..]);
}
}
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>test</span>)]</span>
<span class='kw'>mod</span> <span class='ident'>mac_tests</span> {
<span class='kw'>use</span> <span class='ident'>blake2b</span>::<span class='ident'>Blake2b</span>;
<span class='kw'>use</span> <span class='ident'>mac</span>::<span class='ident'>Mac</span>;
<span class='attribute'>#[<span class='ident'>test</span>]</span>
<span class='kw'>fn</span> <span class='ident'>test_blake2b_mac</span>() {
<span class='kw'>let</span> <span class='ident'>key</span>: <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>u8</span><span class='op'>></span> <span class='op'>=</span> (<span class='number'>0</span>..<span class='number'>64</span>).<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>i</span><span class='op'>|</span> <span class='ident'>i</span>).<span class='ident'>collect</span>();
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>m</span> <span class='op'>=</span> <span class='ident'>Blake2b</span>::<span class='ident'>new_keyed</span>(<span class='number'>64</span>, <span class='kw-2'>&</span><span class='ident'>key</span>[..]);
<span class='ident'>m</span>.<span class='ident'>input</span>(<span class='kw-2'>&</span>[<span class='number'>1</span>,<span class='number'>2</span>,<span class='number'>4</span>,<span class='number'>8</span>]);
<span class='kw'>let</span> <span class='ident'>expected</span> <span class='op'>=</span> [
<span class='number'>0x8e</span>, <span class='number'>0xc6</span>, <span class='number'>0xcb</span>, <span class='number'>0x71</span>, <span class='number'>0xc4</span>, <span class='number'>0x5c</span>, <span class='number'>0x3c</span>, <span class='number'>0x90</span>,
<span class='number'>0x91</span>, <span class='number'>0xd0</span>, <span class='number'>0x8a</span>, <span class='number'>0x37</span>, <span class='number'>0x1e</span>, <span class='number'>0xa8</span>, <span class='number'>0x5d</span>, <span class='number'>0xc1</span>,
<span class='number'>0x22</span>, <span class='number'>0xb5</span>, <span class='number'>0xc8</span>, <span class='number'>0xe2</span>, <span class='number'>0xd9</span>, <span class='number'>0xe5</span>, <span class='number'>0x71</span>, <span class='number'>0x42</span>,
<span class='number'>0xbf</span>, <span class='number'>0xef</span>, <span class='number'>0xce</span>, <span class='number'>0x42</span>, <span class='number'>0xd7</span>, <span class='number'>0xbc</span>, <span class='number'>0xf8</span>, <span class='number'>0x8b</span>,
<span class='number'>0xb0</span>, <span class='number'>0x31</span>, <span class='number'>0x27</span>, <span class='number'>0x88</span>, <span class='number'>0x2e</span>, <span class='number'>0x51</span>, <span class='number'>0xa9</span>, <span class='number'>0x21</span>,
<span class='number'>0x44</span>, <span class='number'>0x62</span>, <span class='number'>0x08</span>, <span class='number'>0xf6</span>, <span class='number'>0xa3</span>, <span class='number'>0x58</span>, <span class='number'>0xa9</span>, <span class='number'>0xe0</span>,
<span class='number'>0x7d</span>, <span class='number'>0x35</span>, <span class='number'>0x3b</span>, <span class='number'>0xd3</span>, <span class='number'>0x1c</span>, <span class='number'>0x41</span>, <span class='number'>0x70</span>, <span class='number'>0x15</span>,
<span class='number'>0x62</span>, <span class='number'>0xac</span>, <span class='number'>0xd5</span>, <span class='number'>0x39</span>, <span class='number'>0x4e</span>, <span class='number'>0xee</span>, <span class='number'>0x73</span>, <span class='number'>0xae</span>,
];
<span class='macro'>assert_eq</span><span class='macro'>!</span>(<span class='ident'>m</span>.<span class='ident'>result</span>().<span class='ident'>code</span>().<span class='ident'>to_vec</span>(), <span class='ident'>expected</span>.<span class='ident'>to_vec</span>());
}
}
<span class='attribute'>#[<span class='ident'>cfg</span>(<span class='ident'>all</span>(<span class='ident'>test</span>, <span class='ident'>feature</span> <span class='op'>=</span> <span class='string'>"with-bench"</span>))]</span>
<span class='kw'>mod</span> <span class='ident'>bench</span> {
<span class='kw'>use</span> <span class='ident'>test</span>::<span class='ident'>Bencher</span>;
<span class='kw'>use</span> <span class='ident'>digest</span>::<span class='ident'>Digest</span>;
<span class='kw'>use</span> <span class='ident'>blake2b</span>::<span class='ident'>Blake2b</span>;
<span class='attribute'>#[<span class='ident'>bench</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>blake2b_10</span>(<span class='ident'>bh</span>: <span class='op'>&</span> <span class='kw-2'>mut</span> <span class='ident'>Bencher</span>) {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>sh</span> <span class='op'>=</span> <span class='ident'>Blake2b</span>::<span class='ident'>new</span>(<span class='number'>64</span>);
<span class='kw'>let</span> <span class='ident'>bytes</span> <span class='op'>=</span> [<span class='number'>1u8</span>; <span class='number'>10</span>];
<span class='ident'>bh</span>.<span class='ident'>iter</span>( <span class='op'>||</span> {
<span class='ident'>sh</span>.<span class='ident'>input</span>(<span class='kw-2'>&</span><span class='ident'>bytes</span>);
});
<span class='ident'>bh</span>.<span class='ident'>bytes</span> <span class='op'>=</span> <span class='ident'>bytes</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>u64</span>;
}
<span class='attribute'>#[<span class='ident'>bench</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>blake2b_1k</span>(<span class='ident'>bh</span>: <span class='op'>&</span> <span class='kw-2'>mut</span> <span class='ident'>Bencher</span>) {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>sh</span> <span class='op'>=</span> <span class='ident'>Blake2b</span>::<span class='ident'>new</span>(<span class='number'>64</span>);
<span class='kw'>let</span> <span class='ident'>bytes</span> <span class='op'>=</span> [<span class='number'>1u8</span>; <span class='number'>1024</span>];
<span class='ident'>bh</span>.<span class='ident'>iter</span>( <span class='op'>||</span> {
<span class='ident'>sh</span>.<span class='ident'>input</span>(<span class='kw-2'>&</span><span class='ident'>bytes</span>);
});
<span class='ident'>bh</span>.<span class='ident'>bytes</span> <span class='op'>=</span> <span class='ident'>bytes</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>u64</span>;
}
<span class='attribute'>#[<span class='ident'>bench</span>]</span>
<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>blake2b_64k</span>(<span class='ident'>bh</span>: <span class='op'>&</span> <span class='kw-2'>mut</span> <span class='ident'>Bencher</span>) {
<span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>sh</span> <span class='op'>=</span> <span class='ident'>Blake2b</span>::<span class='ident'>new</span>(<span class='number'>64</span>);
<span class='kw'>let</span> <span class='ident'>bytes</span> <span class='op'>=</span> [<span class='number'>1u8</span>; <span class='number'>65536</span>];
<span class='ident'>bh</span>.<span class='ident'>iter</span>( <span class='op'>||</span> {
<span class='ident'>sh</span>.<span class='ident'>input</span>(<span class='kw-2'>&</span><span class='ident'>bytes</span>);
});
<span class='ident'>bh</span>.<span class='ident'>bytes</span> <span class='op'>=</span> <span class='ident'>bytes</span>.<span class='ident'>len</span>() <span class='kw'>as</span> <span class='ident'>u64</span>;
}
}
</pre>
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