synta 0.2.6

ASN.1 parser, decoder, and encoder library with DER/BER support and C FFI
Documentation 
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CryptographicMessageSyntaxGMACAlgorithms
    { iso(1) member-body(2) us(840) rsadsi(113549)
      pkcs(1) pkcs-9(9) smime(16) modules(0)
      id-mod-aes-gmac-alg-2020(72) }

DEFINITIONS IMPLICIT TAGS ::=
BEGIN

-- EXPORTS All

IMPORTS
  AlgorithmIdentifier{}, MAC-ALGORITHM
  FROM AlgorithmInformation-2009 -- from [RFC5912]
      { iso(1) identified-organization(3) dod(6) internet(1)
        security(5) mechanisms(5) pkix(7) id-mod(0)
        id-mod-algorithmInformation-02(58)} ;

-- Object Identifiers

aes OBJECT IDENTIFIER ::= { joint-iso-itu-t(2) country(16) us(840)
       organization(1) gov(101) csor(3) nistAlgorithm(4) 1 }

id-aes128-GMAC OBJECT IDENTIFIER ::= { aes 9 }

id-aes192-GMAC OBJECT IDENTIFIER ::= { aes 29 }

id-aes256-GMAC OBJECT IDENTIFIER ::= { aes 49 }

-- GMAC Parameters

GMACParameters ::= SEQUENCE {
   nonce        OCTET STRING, -- recommended size is 12 octets
   length       MACLength DEFAULT 12 }

MACLength ::= INTEGER

END