Following are two further X.509 certificate extension fields I would
like to propose:
(1) Internet Mail Address
This extension has the ASN.1:
InternetMailAddress ::= PrintableString
This extension is non-critical.
I would propose that this extension be incorporated into a revised RFC
1422, i.e., registered by the IETF (not ISO).
(2) Printable Subject Identifier
This extension has the ASN.1:
PrintableSubjectId ::= PrintableString
This extension is non-critical. Its purpose is to provide a string
suitable for display in user interfaces, e.g., when advising a
signature-verifying user of the identity of the signing party.
I would propose that this extension also be incorporated into a revised
RFC 1422. However, being universally useful, it could also be
incorporated in the ISO standard.
Warwick