Deprecate DES, RC4-HMAC-EXP, and Other Weak Cryptographic Algorithms in Kerberos

This specification has been revised 2 times since RFC 1510 (1993). Each document below formally obsoleted the one before it; the versions still in force are listed first.

Revision timeline

  1. RFC 1510 (1993)
  2. RFC 4120 (2005)
  3. RFC 6649 (2012)

Current versions — implement against these

Superseded versions — historical reference only

This lineage is derived automatically from the “obsoletes” relationships recorded in the public RFC Editor index — no editorial judgement is applied to the ordering. The most recent document in the chain is RFC 6649 (July 2012).