Rewrite dissectors to use Libgcrypt functions.

As discussed on the mailinglist, rewriting dissectors to use Libgcrypt
functions as Libgcrypt will be mandatory after change 20030.
Removal of following functions:
- crypt_md4
- crypt_rc4*
- aes_cmac_encrypt_*
- md5_*
- sha1_*
- sha256_*

Further candidates:
- aes_*
- rijndael_*
- ...

Added functions:
- ws_hmac_buffer

Added const macros:
- HASH_MD5_LENGTH
- HASH_SHA1_LENGTH

Changes on epan/crypt/* verified with captures from
https://wiki.wireshark.org/HowToDecrypt802.11
Changes on packet-snmp.c and packet-radius.c verified with captures from
https://wiki.wireshark.org/SampleCapture
Changes on packet-tacacs.c verified with capture from
http://ccie-in-3-months.blogspot.nl/2009/04/decoding-login-credentials-regardless.html

Change-Id: Iea6ba2bf207cf0f1bf2117068fb1abcfeaafaa46
Link: https://www.wireshark.org/lists/wireshark-dev/201702/msg00011.html
Reviewed-on: https://code.wireshark.org/review/20095
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>

1 files changed, 0 insertions, 75 deletions

diff --git a/wsutil/sha2.h b/wsutil/sha2.h
deleted file mode 100644
index baca2233c1..0000000000
--- a/wsutil/sha2.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- *  FIPS-180-2 compliant SHA-2 implementation (only sha256 so far)
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
-
- */
-
-#ifndef _SHA2_H
-#define _SHA2_H
-
-#include "ws_symbol_export.h"
-
-#define SHA256_DIGEST_LEN 32
-#define SHA256_BLOCK_SIZE 64
-
-typedef struct
-{
-    guint64 total;
-    guint32 state[8];
-    guint8 buffer[SHA256_BLOCK_SIZE];
-}
-    sha256_context;
-
-WS_DLL_PUBLIC
-void sha256_starts( sha256_context *ctx );
-WS_DLL_PUBLIC
-void sha256_update( sha256_context *ctx, const guint8 *input, guint32 length );
-WS_DLL_PUBLIC
-void sha256_finish( sha256_context *ctx, guint8 digest[SHA256_DIGEST_LEN] );
-
-
-typedef struct {
-    sha256_context ctx;
-    guint8 k_opad[SHA256_BLOCK_SIZE];
-}
-    sha256_hmac_context;
-
-WS_DLL_PUBLIC
-void sha256_hmac_starts( sha256_hmac_context *hctx, const guint8 *key, guint32 keylen );
-WS_DLL_PUBLIC
-void sha256_hmac_update( sha256_hmac_context *hctx, const guint8 *buf, guint32 buflen );
-WS_DLL_PUBLIC
-void sha256_hmac_finish( sha256_hmac_context *hctx, guint8 digest[SHA256_DIGEST_LEN] );
-WS_DLL_PUBLIC
-void sha256_hmac( const guint8 *key, guint32 keylen, const guint8 *buf, guint32 buflen,
-                  guint8 digest[SHA256_DIGEST_LEN] );
-
-
-
-#endif /* _SHA2_H */
-
-/*
- * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
- *
- * Local variables:
- * c-basic-offset: 4
- * tab-width: 8
- * indent-tabs-mode: nil
- * End:
- *
- * vi: set shiftwidth=4 tabstop=8 expandtab:
- * :indentSize=4:tabSize=8:noTabs=true:
- */