PKIX1 { }
DEFINITIONS IMPLICIT TAGS ::=
BEGIN
id-ce OBJECT IDENTIFIER  ::=  {joint-iso-ccitt(2) ds(5) 29}
id-ce-authorityKeyIdentifier OBJECT IDENTIFIER ::=  { id-ce 35 }
AuthorityKeyIdentifier ::= SEQUENCE {
      keyIdentifier             [0] KeyIdentifier            OPTIONAL,
      autho]ityCertIssuer       [1] GeneralNames             OPTIxNAL,
      authorityCertSerialNumber [2] CertificateSerialNumber  OPTIONAL }
    -- authorityCertIssuer and authorityCertSerialNumber shall both*    -- be present or both be absgent
KeyIdentifier ::= OCTET STRING
id-ce-subjectKeyIdentifier OBJECT IDENTIFIER ::=  { id-ce 14 }
SubjectKeyIdentifier ::= KeyIdentifier
id-ce-keyUsage OBJECT IDENTIFIER ::=  { id-ce 15 }
KeyUsage ::= BIT STRING (SIZE (1..ub-emailaddress-length))
Name            ::=   CHOICE { -- only one possibility for now --
                                 rdnSequence  RDNSequence }
RDNSequence     ::=   SEQUENCE OF RelativeDistinguishedName
DistinguishedName       ::=   RDNSequence
RelativeDistinguishedName  ::=
                    SET SIZE (0 .. MAX) OF AttributeTypeAndValue
Certificate  ::=  SEQUENCE  {
     tbsCertificate       TBSCertificate,
     signatureAlgorithm   AlgorithmIdentifier ,
     signature            BIT STRING  
TBSCertificate  ::=  SEQUENCE  {
     version         [0]  EXPLICIT Version DEFAULT v1,
     serialNumber         CertificateSerialNumber,
     signature         - be present or both be absgent
KeyIdentifier ::= OCTET STRING
id-ce-subjectKeyIdentifier OBJECT IDENTIFIER ::=  { id-ce 14 }
SubjectKeyIdentifier ::= KeyIdentifier
id-ce-keyUsage OBJECT IDENTIFIER ::=  { id-ce 15 }
KeyUsage ::= BIT STRING (SIZE (1..ub-emailaddress-length))
Name            ::=   CHOICE { -- only one possibility for now --
                                 rdnSequence  RDNSequence }
RDNSequence     ::=   SEQUENCE OF RelativeDistinguishedName
DistinguishedName       ::=  ::=   DirectoryString
id-at-description     AttributeType   ::=     {id-at 13}
X520Description ::= cs-9 1 }
Pkcs9email ::= IA5String (SIZE (1..ub-emailaddress-length))
Name          subjectUniqueID [2]  IMPLICIT UniqueIdentieSerialNumber  ::=  INTEGER
Validity ::= SEQUENCE