I did some quick and uninformed research, and found that libgcrypt has support for the HMAC_MD5 algorithm nowadays (in git since about end of 2013, IIRC). Is that something that Mike Miller's code could employ to implement MD5-CRAM authentication with libgcyrpt-based versions of gnutls?
(As for base64, though, libgcrypt's manual on S-expressions still denotes the constant GCRYSEXP_FMT_BASE64 with "Not currently supported"...) Bernhard -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org