RFC Errata
RFC 4757, "The RC4-HMAC Kerberos Encryption Types Used by Microsoft Windows", December 2006
Note: This RFC has been updated by RFC 6649
Source of RFC: IETF - NON WORKING GROUPArea Assignment: sec
See Also: RFC 4757 w/ inline errata
Errata ID: 2628
Status: Verified
Type: Technical
Publication Format(s) : TEXT
Reported By: Matthias Schertler
Date Reported: 2010-11-12
Verifier Name: Sean Turner
Date Verified: 2011-06-01
Section 5 says:
nonce (edata.Confounder, 8); memcpy (edata.Data, data); edata.Checksum = HMAC (K2, edata);
It should say:
nonce (edata.Confounder, 8); memcpy (edata.Data, data); edata.Checksum = HMAC (K2, concat(edata.Confounder, edata.Data));