[25928] in CVS-changelog-for-Kerberos-V5
svn rev #25418: trunk/src/lib/crypto/krb/
daemon@ATHENA.MIT.EDU (ghudson@mit.edu)
Fri Oct 28 11:45:04 2011
Date: Fri, 28 Oct 2011 11:45:03 -0400
From: ghudson@mit.edu
Message-Id: <201110281545.p9SFj3qb027652@drugstore.mit.edu>
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http://src.mit.edu/fisheye/changelog/krb5/?cs=25418
Commit By: ghudson
Log Message:
ticket: 6994
subject: Fix intermediate key length in hmac-md5 checksum
target_version: 1.10
tags: pullup
When using hmac-md5, the intermediate key length is the output of the
hash function (128 bits), not the input key length. Relevant if the
input key is not an RC4 key.
Changed Files:
U trunk/src/lib/crypto/krb/checksum_hmac_md5.c
Modified: trunk/src/lib/crypto/krb/checksum_hmac_md5.c
===================================================================
--- trunk/src/lib/crypto/krb/checksum_hmac_md5.c 2011-10-26 22:34:21 UTC (rev 25417)
+++ trunk/src/lib/crypto/krb/checksum_hmac_md5.c 2011-10-28 15:45:03 UTC (rev 25418)
@@ -59,7 +59,7 @@
ret = krb5int_hmac(ctp->hash, key, &iov, 1, &ds);
if (ret)
goto cleanup;
- ks.length = key->keyblock.length;
+ ks.length = ds.length;
ks.contents = (krb5_octet *) ds.data;
keyblock = &ks;
} else /* For md5-hmac, just use the key. */
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