Value,Name,Recommended,Reference,Comment
0,X509,Y,[RFC6091][RFC Errata 5976],Was X.509 before TLS 1.3.
1,OpenPGP_RESERVED,N,[RFC6091][RFC-ietf-tls-rfc8446bis-13],Used in TLS versions prior to 1.3.
2,Raw Public Key,Y,[RFC7250],
3,1609Dot2,N,[RFC8902],
4-223,Unassigned,,,
224-255,Reserved for Private Use,,[RFC6091],