"This document specifies the syntax and semantics for the Subject Public Key Information field in certificates that support Elliptic Curve Cryptography. This document updates Sections 2.3.5 and 5@ and the ASN.1 module of ""Algorithms and Identifiers for the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile""@ RFC 3279."
RFC 5480-2009 history
2009RFC 5480-2009 Elliptic Curve Cryptography Subject Public Key Information