/*
* Single DES in SSH-2. "des-cbc" is marked as HISTORIC in
- * draft-ietf-secsh-assignednumbers-04.txt, referring to
+ * RFC 4250, referring to
* FIPS-46-3. ("Single DES (i.e., DES) will be permitted
* for legacy systems only.") , but ssh.com support it and
* apparently aren't the only people to do so, so we sigh