Enum trust_dns::rr::dnssec::Nsec3HashAlgorithm

pub enum Nsec3HashAlgorithm {
    SHA1,
}

RFC 5155                         NSEC3                        March 2008

11.  IANA Considerations

   Although the NSEC3 and NSEC3PARAM RR formats include a hash algorithm
   parameter, this document does not define a particular mechanism for
   safely transitioning from one NSEC3 hash algorithm to another.  When
   specifying a new hash algorithm for use with NSEC3, a transition
   mechanism MUST also be defined.

   This document updates the IANA registry "DOMAIN NAME SYSTEM
   PARAMETERS" (http://www.iana.org/assignments/dns-parameters) in sub-
   registry "TYPES", by defining two new types.  Section 3 defines the
   NSEC3 RR type 50.  Section 4 defines the NSEC3PARAM RR type 51.

   This document updates the IANA registry "DNS SECURITY ALGORITHM
   NUMBERS -- per [RFC4035]"
   (http://www.iana.org/assignments/dns-sec-alg-numbers).  Section 2
   defines the aliases DSA-NSEC3-SHA1 (6) and RSASHA1-NSEC3-SHA1 (7) for
   respectively existing registrations DSA and RSASHA1 in combination
   with NSEC3 hash algorithm SHA1.

   Since these algorithm numbers are aliases for existing DNSKEY
   algorithm numbers, the flags that exist for the original algorithm
   are valid for the alias algorithm.

   This document creates a new IANA registry for NSEC3 flags.  This
   registry is named "DNSSEC NSEC3 Flags".  The initial contents of this
   registry are:

     0   1   2   3   4   5   6   7
   +---+---+---+---+---+---+---+---+
   |   |   |   |   |   |   |   |Opt|
   |   |   |   |   |   |   |   |Out|
   +---+---+---+---+---+---+---+---+

      bit 7 is the Opt-Out flag.

      bits 0 - 6 are available for assignment.

   Assignment of additional NSEC3 Flags in this registry requires IETF
   Standards Action [RFC2434].

   This document creates a new IANA registry for NSEC3PARAM flags.  This
   registry is named "DNSSEC NSEC3PARAM Flags".  The initial contents of
   this registry are:

     0   1   2   3   4   5   6   7
   +---+---+---+---+---+---+---+---+
   |   |   |   |   |   |   |   | 0 |
   +---+---+---+---+---+---+---+---+

      bit 7 is reserved and must be 0.

      bits 0 - 6 are available for assignment.

   Assignment of additional NSEC3PARAM Flags in this registry requires
   IETF Standards Action [RFC2434].

   Finally, this document creates a new IANA registry for NSEC3 hash
   algorithms.  This registry is named "DNSSEC NSEC3 Hash Algorithms".
   The initial contents of this registry are:

      0 is Reserved.

      1 is SHA-1.

      2-255 Available for assignment.

   Assignment of additional NSEC3 hash algorithms in this registry
   requires IETF Standards Action [RFC2434].

Variants

SHA1

Hash for the Nsec3 records

Methods

impl Nsec3HashAlgorithm

fn from_u8(value: u8) -> DecodeResult<Self>

http://www.iana.org/assignments/dns-sec-alg-numbers/dns-sec-alg-numbers.xhtml

fn hash(
    &self,
    salt: &[u8],
    name: &Name,
    iterations: u16
) -> DnsSecResult<DigestBytes>

Laurie, et al.              Standards Track                    [Page 14]

RFC 5155                         NSEC3                        March 2008

Define H(x) to be the hash of x using the Hash Algorithm selected by
   the NSEC3 RR, k to be the number of Iterations, and || to indicate
   concatenation.  Then define:

      IH(salt, x, 0) = H(x || salt), and

      IH(salt, x, k) = H(IH(salt, x, k-1) || salt), if k > 0

   Then the calculated hash of an owner name is

      IH(salt, owner name, iterations),

   where the owner name is in the canonical form, defined as:

   The wire format of the owner name where:

   1.  The owner name is fully expanded (no DNS name compression) and
       fully qualified;

   2.  All uppercase US-ASCII letters are replaced by the corresponding
       lowercase US-ASCII letters;

   3.  If the owner name is a wildcard name, the owner name is in its
       original unexpanded form, including the "*" label (no wildcard
       substitution);

Trait Implementations

impl Debug for Nsec3HashAlgorithm

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl PartialEq for Nsec3HashAlgorithm

fn eq(&self, __arg_0: &Nsec3HashAlgorithm) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Eq for Nsec3HashAlgorithm

impl Hash for Nsec3HashAlgorithm

fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl Clone for Nsec3HashAlgorithm

fn clone(&self) -> Nsec3HashAlgorithm

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Nsec3HashAlgorithm