Additional XML Security Uniform Resource Identifiers (URIs)

[Pim van der Eijk <pvde@sonnenglanz.net>]

Some time ago, but it's maybe not widely known so I thought I'd send an 
update.

IETF has published RFC 9231, Additional XML Security Uniform Resource 
Identifiers (URIs)

This RFC adds identifiers for many newer algorithms that did not exist 
when XML Signature, XML Encryption, WS-Security, RegRep, ebXML 
Messaging and AS4 were written. This includes the EdDSA signature 
algorithms Ed25519 and Ed448 and the related X25519 and X448 key 
agreement algorithms that are algorithms of choice for many new Internet 
applications and protocols but also many others.

These newly supported algorithms are well supported in security 
libraries for programming languages. By providing XML security URIs for 
them, IETF has enabled their use in the security specifications on which 
ebXML depends. This in turns allows users of ebXML specifications to 
continue using them securely for many more years. You will see some AS4 
usage profiles starting to use these newer algorithms this year.

https://datatracker.ietf.org/doc/rfc9231/