Privacy-Enhanced Mail (RFC 1421)

Privacy-Enhanced Mail (PEM) is an secure e-mail standard that was never widely used. It is probably most notable for the other formats that borrowed from it and usurped its name (see PEM).

Identification
A message using this format includes a line that reads " ".

For versions of the format prior to RFC 1421, the line reads " ".

Specifications

 * RFC 1421: PEM Part I: Message Encryption and Authentication Procedures
 * RFC 1422: PEM Part II: Certificate-Based Key Management
 * RFC 1423: PEM Part III: Algorithms, Modes, and Identifiers
 * RFC 1424: PEM Part IV: Key Certification and Related Services

Obsolete RFCs:
 * RFC 989: PEM Part I
 * RFC 1040: PEM Part I
 * RFC 1113: PEM Part I
 * RFC 1114: PEM Part II
 * RFC 1115: PEM Part III

Links

 * Wikipedia: Privacy-enhanced Electronic Mail