rust_keylock 0.3.0

A password manager with goals to be Secure, Simple to use, Portable and Extensible
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</pre><pre class='rust '>
<span class='comment'>// Licensed under the Apache License, Version 2.0 &lt;LICENSE-APACHE or</span>
<span class='comment'>// http://www.apache.org/licenses/LICENSE-2.0&gt; or the MIT license</span>
<span class='comment'>// &lt;LICENSE-MIT or http://opensource.org/licenses/MIT&gt;, 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'>buffer</span>::{<span class='ident'>BufferResult</span>, <span class='ident'>RefReadBuffer</span>, <span class='ident'>RefWriteBuffer</span>};
<span class='kw'>use</span> <span class='ident'>cryptoutil</span>::<span class='ident'>symm_enc_or_dec</span>;

<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>BlockEncryptor</span> {
    <span class='kw'>fn</span> <span class='ident'>block_size</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>usize</span>;
    <span class='kw'>fn</span> <span class='ident'>encrypt_block</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>input</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>output</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> [<span class='ident'>u8</span>]);
}

<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>BlockEncryptorX8</span> {
    <span class='kw'>fn</span> <span class='ident'>block_size</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>usize</span>;
    <span class='kw'>fn</span> <span class='ident'>encrypt_block_x8</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>input</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>output</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> [<span class='ident'>u8</span>]);
}

<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>BlockDecryptor</span> {
    <span class='kw'>fn</span> <span class='ident'>block_size</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>usize</span>;
    <span class='kw'>fn</span> <span class='ident'>decrypt_block</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>input</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>output</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> [<span class='ident'>u8</span>]);
}

<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>BlockDecryptorX8</span> {
    <span class='kw'>fn</span> <span class='ident'>block_size</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>) <span class='op'>-&gt;</span> <span class='ident'>usize</span>;
    <span class='kw'>fn</span> <span class='ident'>decrypt_block_x8</span>(<span class='kw-2'>&amp;</span><span class='self'>self</span>, <span class='ident'>input</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>output</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> [<span class='ident'>u8</span>]);
}

<span class='attribute'>#[<span class='ident'>derive</span>(<span class='ident'>Debug</span>, <span class='ident'>Clone</span>, <span class='ident'>Copy</span>)]</span>
<span class='kw'>pub</span> <span class='kw'>enum</span> <span class='ident'>SymmetricCipherError</span> {
    <span class='ident'>InvalidLength</span>,
    <span class='ident'>InvalidPadding</span>
}

<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>Encryptor</span> {
    <span class='kw'>fn</span> <span class='ident'>encrypt</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>input</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>RefReadBuffer</span>, <span class='ident'>output</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>RefWriteBuffer</span>, <span class='ident'>eof</span>: <span class='ident'>bool</span>)
        <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>BufferResult</span>, <span class='ident'>SymmetricCipherError</span><span class='op'>&gt;</span>;
}

<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>Decryptor</span> {
    <span class='kw'>fn</span> <span class='ident'>decrypt</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>input</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>RefReadBuffer</span>, <span class='ident'>output</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>RefWriteBuffer</span>, <span class='ident'>eof</span>: <span class='ident'>bool</span>)
        <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>BufferResult</span>, <span class='ident'>SymmetricCipherError</span><span class='op'>&gt;</span>;
}

<span class='kw'>pub</span> <span class='kw'>trait</span> <span class='ident'>SynchronousStreamCipher</span> {
    <span class='kw'>fn</span> <span class='ident'>process</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>input</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>output</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> [<span class='ident'>u8</span>]);
}

<span class='comment'>// TODO - Its a bit unclear to me why this is necessary</span>
<span class='kw'>impl</span> <span class='ident'>SynchronousStreamCipher</span> <span class='kw'>for</span> <span class='ident'>Box</span><span class='op'>&lt;</span><span class='ident'>SynchronousStreamCipher</span> <span class='op'>+</span> <span class='lifetime'>&#39;static</span><span class='op'>&gt;</span> {
    <span class='kw'>fn</span> <span class='ident'>process</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>input</span>: <span class='kw-2'>&amp;</span>[<span class='ident'>u8</span>], <span class='ident'>output</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> [<span class='ident'>u8</span>]) {
        <span class='kw'>let</span> <span class='ident'>me</span> <span class='op'>=</span> <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='kw-2'>*</span><span class='kw-2'>*</span><span class='self'>self</span>;
        <span class='ident'>me</span>.<span class='ident'>process</span>(<span class='ident'>input</span>, <span class='ident'>output</span>);
    }
}

<span class='kw'>impl</span> <span class='ident'>Encryptor</span> <span class='kw'>for</span> <span class='ident'>Box</span><span class='op'>&lt;</span><span class='ident'>SynchronousStreamCipher</span> <span class='op'>+</span> <span class='lifetime'>&#39;static</span><span class='op'>&gt;</span> {
    <span class='kw'>fn</span> <span class='ident'>encrypt</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>input</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>RefReadBuffer</span>, <span class='ident'>output</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>RefWriteBuffer</span>, _: <span class='ident'>bool</span>)
            <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>BufferResult</span>, <span class='ident'>SymmetricCipherError</span><span class='op'>&gt;</span> {
        <span class='ident'>symm_enc_or_dec</span>(<span class='self'>self</span>, <span class='ident'>input</span>, <span class='ident'>output</span>)
    }
}

<span class='kw'>impl</span> <span class='ident'>Decryptor</span> <span class='kw'>for</span> <span class='ident'>Box</span><span class='op'>&lt;</span><span class='ident'>SynchronousStreamCipher</span> <span class='op'>+</span> <span class='lifetime'>&#39;static</span><span class='op'>&gt;</span> {
    <span class='kw'>fn</span> <span class='ident'>decrypt</span>(<span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>input</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>RefReadBuffer</span>, <span class='ident'>output</span>: <span class='kw-2'>&amp;</span><span class='kw-2'>mut</span> <span class='ident'>RefWriteBuffer</span>, _: <span class='ident'>bool</span>)
            <span class='op'>-&gt;</span> <span class='prelude-ty'>Result</span><span class='op'>&lt;</span><span class='ident'>BufferResult</span>, <span class='ident'>SymmetricCipherError</span><span class='op'>&gt;</span> {
        <span class='ident'>symm_enc_or_dec</span>(<span class='self'>self</span>, <span class='ident'>input</span>, <span class='ident'>output</span>)
    }
}
</pre>
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