[11407] in Kerberos-V5-bugs
[krbdev.mit.edu #6665] SVN Commit
daemon@ATHENA.MIT.EDU (Greg Hudson via RT)
Thu Feb 18 13:04:51 2010
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From: "Greg Hudson via RT" <rt-comment@krbdev.MIT.EDU>
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Date: Thu, 18 Feb 2010 13:04:49 -0500 (EST)
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Make cipher state chaining work in the OpenSSL back end for des, des3,
and arcfour enc providers. Subtleties:
* DES and DES3 have checks to avoid clobbering ivec with uninitialized
data if there is no data to encrypt.
* Arcfour saves the OpenSSL cipher context across calls. To protect
against a caller improperly copying the state (which happens to work
with other enc providers), a loopback pointer is used, as in GSSAPI.
* EVP_EncryptFinal_ex is unnecessary with stream ciphers and would
interfere with cipher state chaining if it did anything, so just
remove it.
http://src.mit.edu/fisheye/changelog/krb5/?cs=23734
Commit By: ghudson
Revision: 23734
Changed Files:
U trunk/src/lib/crypto/openssl/enc_provider/des.c
U trunk/src/lib/crypto/openssl/enc_provider/des3.c
U trunk/src/lib/crypto/openssl/enc_provider/rc4.c
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