Enum trust_dns::rr::dnssec::Algorithm
[−]
[src]
pub enum Algorithm { RSASHA1, RSASHA1NSEC3SHA1, RSASHA256, RSASHA512, ECDSAP256SHA256, ECDSAP384SHA384, ED25519, }
DNSSec signing and validation algorithms.
For reference the iana documents have all the officially registered algorithms.
RFC 6944, DNSSEC DNSKEY Algorithm Status, April 2013
2.2. Algorithm Implementation Status Assignment Rationale
RSASHA1 has an implementation status of Must Implement, consistent
with [RFC4034]. RSAMD5 has an implementation status of Must Not
Implement because of known weaknesses in MD5.
The status of RSASHA1-NSEC3-SHA1 is set to Recommended to Implement
as many deployments use NSEC3. The status of RSA/SHA-256 and RSA/
SHA-512 are also set to Recommended to Implement as major deployments
(such as the root zone) use these algorithms [ROOTDPS]. It is
believed that RSA/SHA-256 or RSA/SHA-512 algorithms will replace
older algorithms (e.g., RSA/SHA-1) that have a perceived weakness.
Likewise, ECDSA with the two identified curves (ECDSAP256SHA256 and
ECDSAP384SHA384) is an algorithm that may see widespread use due to
the perceived similar level of security offered with smaller key size
compared to the key sizes of algorithms such as RSA. Therefore,
ECDSAP256SHA256 and ECDSAP384SHA384 are Recommended to Implement.
All other algorithms used in DNSSEC specified without an
implementation status are currently set to Optional.
2.3. DNSSEC Implementation Status Table
The DNSSEC algorithm implementation status table is listed below.
Only the algorithms already specified for use with DNSSEC at the time
of writing are listed.
+------------+------------+-------------------+-------------------+
| Must | Must Not | Recommended | Optional |
| Implement | Implement | to Implement | |
+------------+------------+-------------------+-------------------+
| | | | |
| RSASHA1 | RSAMD5 | RSASHA256 | Any |
| | | RSASHA1-NSEC3 | registered |
| | | -SHA1 | algorithm |
| | | RSASHA512 | not listed in |
| | | ECDSAP256SHA256 | this table |
| | | ECDSAP384SHA384 | |
+------------+------------+-------------------+-------------------+
This table does not list the Reserved values in the IANA registry
table or the values for INDIRECT (252), PRIVATE (253), and PRIVATEOID
(254). These values may relate to more than one algorithm and are
therefore up to the implementer's discretion. As noted, any
algorithm not listed in the table is Optional. As of this writing,
the Optional algorithms are DSASHA1, DH, DSA-NSEC3-SHA1, and GOST-
ECC, but in general, anything not explicitly listed is Optional.
2.4. Specifying New Algorithms and Updating the Status of Existing
Entries
[RFC6014] establishes a parallel procedure for adding a registry
entry for a new algorithm other than a standards track document.
Because any algorithm not listed in the foregoing table is Optional,
algorithms entered into the registry using the [RFC6014] procedure
are automatically Optional.
It has turned out to be useful for implementations to refer to a
single document that specifies the implementation status of every
algorithm. Accordingly, when a new algorithm is to be registered
with a status other than Optional, this document shall be made
obsolete by a new document that adds the new algorithm to the table
in Section 2.3. Similarly, if the status of any algorithm in the
table in Section 2.3 changes, a new document shall make this document
obsolete; that document shall include a replacement of the table in
Section 2.3. This way, the goal of having one authoritative document
to specify all the status values is achieved.
This document cannot be updated, only made obsolete and replaced by a
successor document.
Variants
RSASHA1
DO NOT USE, SHA1 is a compromised hashing function, it is here for backward compatability
RSASHA1NSEC3SHA1
DO NOT USE, SHA1 is a compromised hashing function, it is here for backward compatability
RSASHA256
RSA public key with SHA256 hash
RSASHA512
RSA public key with SHA512 hash
ECDSAP256SHA256
ECDSAP384SHA384
ED25519
Methods
impl Algorithm
[src]
fn from_u8(value: u8) -> DecodeResult<Self>
fn hash_len(&self) -> usize
length in bytes that the hash portion of this function will produce
fn to_str(&self) -> &'static str
Convert to string form
Trait Implementations
impl Clone for Algorithm
[src]
fn clone(&self) -> Algorithm
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0
Performs copy-assignment from source
. Read more
impl Copy for Algorithm
[src]
impl PartialEq for Algorithm
[src]
fn eq(&self, __arg_0: &Algorithm) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &Rhs) -> bool
1.0.0
This method tests for !=
.
impl Eq for Algorithm
[src]
impl Hash for Algorithm
[src]
fn hash<__H: Hasher>(&self, __arg_0: &mut __H)
Feeds this value into the given [Hasher
]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0
H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl PartialOrd for Algorithm
[src]
fn partial_cmp(&self, __arg_0: &Algorithm) -> Option<Ordering>
This method returns an ordering between self
and other
values if one exists. Read more
fn lt(&self, other: &Rhs) -> bool
1.0.0
This method tests less than (for self
and other
) and is used by the <
operator. Read more
fn le(&self, other: &Rhs) -> bool
1.0.0
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
fn gt(&self, other: &Rhs) -> bool
1.0.0
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
fn ge(&self, other: &Rhs) -> bool
1.0.0
This method tests greater than or equal to (for self
and other
) and is used by the >=
operator. Read more
impl Ord for Algorithm
[src]
fn cmp(&self, __arg_0: &Algorithm) -> Ordering
This method returns an Ordering
between self
and other
. Read more
impl Debug for Algorithm
[src]
impl Decodable for Algorithm
[src]
fn decode<__D: Decoder>(__arg_0: &mut __D) -> Result<Algorithm, __D::Error>
Deserialize a value using a Decoder
.
impl BinSerializable<Algorithm> for Algorithm
[src]
fn read(decoder: &mut BinDecoder) -> DecodeResult<Algorithm>
Read the type from the stream
fn emit(&self, encoder: &mut BinEncoder) -> EncodeResult
Write the type to the stream
impl FromStr for Algorithm
[src]
type Err = DecodeError
The associated error which can be returned from parsing.
fn from_str(s: &str) -> DecodeResult<Algorithm>
Parses a string s
to return a value of this type. Read more