RFC 5801, "Using Generic Security Service Application Program Interface (GSS-API) Mechanisms in Simple Authentication and Security Layer (SASL): The GS2 Mechanism Family", July 2010Source of RFC: sasl (sec)
Errata ID: 5081
Reported By: Rick van Rein
Date Reported: 2017-08-09
Section 3.1 says:
If any padding or non-alphabet characters are encountered, the name is not a GS2 family mechanism name.
It should say:
If any padding or non-alphanumerical characters are encountered, the name is not a GS2 family mechanism name.