ca

-- RFC 5911

   CMSAesRsaesOaep-2009 {iso(1) member-body(2) us(840) rsadsi(113549)
       pkcs(1) pkcs-9(9) smime(16) modules(0) id-mod-cms-aes-02(38)}
   DEFINITIONS IMPLICIT TAGS ::=
   BEGIN
   EXPORTS ALL;
   IMPORTS

   CONTENT-ENCRYPTION, KEY-WRAP, SMIME-CAPS
   FROM AlgorithmInformation-2009
       {iso(1) identified-organization(3) dod(6) internet(1) security(5)
       mechanisms(5) pkix(7) id-mod(0)
       id-mod-algorithmInformation-02(58)};

   AES-ContentEncryption CONTENT-ENCRYPTION ::= {
       cea-aes128-cbc | cea-aes192-cbc | cea-aes256-cbc, ...
   }

   AES-KeyWrap KEY-WRAP ::= {
       kwa-aes128-wrap | kwa-aes192-wrap | kwa-aes256-wrap, ...
   }

   SMimeCaps SMIME-CAPS ::= {
      cea-aes128-cbc.&smimeCaps |
      cea-aes192-cbc.&smimeCaps |
      cea-aes256-cbc.&smimeCaps |
      kwa-aes128-wrap.&smimeCaps |
      kwa-aes192-wrap.&smimeCaps |
      kwa-aes256-wrap.&smimeCaps, ...
   }

   -- AES information object identifiers --

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

   -- AES using CBC mode for key sizes of 128, 192, 256

   cea-aes128-cbc CONTENT-ENCRYPTION ::= {
       IDENTIFIER id-aes128-CBC
       PARAMS TYPE AES-IV ARE required
       SMIME-CAPS { IDENTIFIED BY id-aes128-CBC }
   }
   id-aes128-CBC OBJECT IDENTIFIER ::= { aes 2 }

   cea-aes192-cbc CONTENT-ENCRYPTION ::= {
       IDENTIFIER id-aes192-CBC
       PARAMS TYPE AES-IV ARE required
       SMIME-CAPS { IDENTIFIED BY id-aes192-CBC }
   }
   id-aes192-CBC OBJECT IDENTIFIER ::= { aes 22 }

   cea-aes256-cbc CONTENT-ENCRYPTION ::= {
       IDENTIFIER id-aes256-CBC
       PARAMS TYPE AES-IV ARE required
       SMIME-CAPS { IDENTIFIED BY id-aes256-CBC }
   }

   id-aes256-CBC OBJECT IDENTIFIER ::= { aes 42 }

   -- AES-IV is the parameter for all the above object identifiers.

   AES-IV ::= OCTET STRING (SIZE(16))

   -- AES Key Wrap Algorithm Identifiers  - Parameter is absent

   kwa-aes128-wrap KEY-WRAP ::= {
       IDENTIFIER id-aes128-wrap
       PARAMS ARE absent
       SMIME-CAPS { IDENTIFIED BY id-aes128-wrap }
   }
   id-aes128-wrap OBJECT IDENTIFIER ::= { aes 5 }

   kwa-aes192-wrap KEY-WRAP ::= {
       IDENTIFIER id-aes192-wrap
       PARAMS ARE absent
       SMIME-CAPS { IDENTIFIED BY id-aes192-wrap }
   }
   id-aes192-wrap OBJECT IDENTIFIER ::= { aes 25 }

   kwa-aes256-wrap KEY-WRAP ::= {
       IDENTIFIER id-aes256-wrap
       PARAMS ARE absent
       SMIME-CAPS { IDENTIFIED BY id-aes256-wrap }
   }
   id-aes256-wrap OBJECT IDENTIFIER ::= { aes 45 }

   END