forked from wolfSSL/wolfssl
add AES-CMAC
This commit is contained in:
John Safranek
19
configure.ac
19
configure.ac
@ -1256,6 +1256,19 @@ fi
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AM_CONDITIONAL([BUILD_SHA], [test "x$ENABLED_SHA" = "xyes"])
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# CMAC
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AC_ARG_ENABLE([cmac],
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[AS_HELP_STRING([--enable-cmac],[Enable CMAC (default: disabled)])],
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[ ENABLED_CMAC=$enableval ],
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[ ENABLED_CMAC=no ]
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)
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AS_IF([test "x$ENABLED_CMAC" = "xyes"],
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[AM_CFLAGS="$AM_CFLAGS -DWOLFSSL_CMAC -DWOLFSSL_AES_DIRECT"])
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AM_CONDITIONAL([BUILD_CMAC], [test "x$ENABLED_CMAC" = "xyes"])
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# Web Server Build
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AC_ARG_ENABLE([webserver],
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[ --enable-webserver Enable Web Server (default: disabled)],
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@ -2672,6 +2685,11 @@ AS_IF([test "x$ENABLED_SNIFFER" = "xyes" && \
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test "x$ENABLED_RSA" = "xno"],
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[AC_MSG_ERROR([please enable rsa if enabling sniffer.])])
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# CMAC currently requires AES.
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AS_IF([test "x$ENABLED_CMAC" = "xyes" && \
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test "x$ENABLED_AES" = "xno"],
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[AC_MSG_ERROR([cannot use CMAC without AES.])])
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################################################################################
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# Update CFLAGS based on options #
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################################################################################
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@ -2914,6 +2932,7 @@ echo " * RIPEMD: $ENABLED_RIPEMD"
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echo " * SHA: $ENABLED_SHA"
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echo " * SHA-512: $ENABLED_SHA512"
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echo " * BLAKE2: $ENABLED_BLAKE2"
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echo " * CMAC: $ENABLED_CMAC"
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echo " * keygen: $ENABLED_KEYGEN"
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echo " * certgen: $ENABLED_CERTGEN"
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echo " * certreq: $ENABLED_CERTREQ"
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@ -79,6 +79,10 @@ if BUILD_AES
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src_libwolfssl_la_SOURCES += wolfcrypt/src/aes.c
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endif
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if BUILD_CMAC
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src_libwolfssl_la_SOURCES += wolfcrypt/src/cmac.c
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endif
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if BUILD_DES3
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src_libwolfssl_la_SOURCES += wolfcrypt/src/des3.c
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endif
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149
wolfcrypt/src/cmac.c
Normal file
149
wolfcrypt/src/cmac.c
Normal file
@ -0,0 +1,149 @@
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/* cmac.c
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*
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* Copyright (C) 2006-2016 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <wolfssl/wolfcrypt/settings.h>
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#if defined(WOLFSSL_CMAC) && !defined(NO_AES) && defined(WOLFSSL_AES_DIRECT)
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#ifdef NO_INLINE
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#include <wolfssl/wolfcrypt/misc.h>
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#else
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#define WOLFSSL_MISC_INCLUDED
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#include <wolfcrypt/src/misc.c>
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#endif
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#include <wolfssl/wolfcrypt/aes.h>
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#include <wolfssl/wolfcrypt/cmac.h>
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#ifndef WOLFSSL_HAVE_MIN
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#define WOLFSSL_HAVE_MIN
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static INLINE word32 min(word32 a, word32 b)
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{
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return a > b ? b : a;
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}
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#endif /* WOLFSSL_HAVE_MIN */
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static void ShiftAndXorRb(byte* out, byte* in)
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{
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int i, j, xorRb;
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int mask = 0, last = 0;
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byte Rb = 0x87;
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xorRb = (in[0] & 0x80) != 0;
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for (i = 1, j = AES_BLOCK_SIZE - 1; i <= AES_BLOCK_SIZE; i++, j--) {
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last = (in[j] & 0x80) ? 1 : 0;
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out[j] = (in[j] << 1) | mask;
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mask = last;
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if (xorRb) {
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out[j] ^= Rb;
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Rb = 0;
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}
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}
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}
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int wc_InitCmac(Cmac* cmac, const byte* key, word32 keySz,
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int type, void* unused)
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{
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int ret;
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(void)unused;
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if (type != 0) return -1;
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XMEMSET(cmac, 0, sizeof(Cmac));
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ret = wc_AesSetKey(&cmac->aes, key, keySz, NULL, AES_ENCRYPTION);
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if (ret == 0) {
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byte l[AES_BLOCK_SIZE];
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XMEMSET(l, 0, AES_BLOCK_SIZE);
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wc_AesEncryptDirect(&cmac->aes, l, l);
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ShiftAndXorRb(cmac->k1, l);
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ShiftAndXorRb(cmac->k2, cmac->k1);
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ForceZero(l, AES_BLOCK_SIZE);
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}
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return ret;
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}
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int wc_CmacUpdate(Cmac* cmac, const byte* in, word32 inSz)
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{
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while (inSz != 0) {
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word32 add = min(inSz, AES_BLOCK_SIZE - cmac->bufferSz);
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XMEMCPY(&cmac->buffer[cmac->bufferSz], in, add);
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cmac->bufferSz += add;
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in += add;
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inSz -= add;
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if (cmac->bufferSz == AES_BLOCK_SIZE && inSz != 0) {
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if (cmac->totalSz != 0)
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xorbuf(cmac->buffer, cmac->digest, AES_BLOCK_SIZE);
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wc_AesEncryptDirect(&cmac->aes,
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cmac->digest,
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cmac->buffer);
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cmac->totalSz += AES_BLOCK_SIZE;
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cmac->bufferSz = 0;
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}
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}
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return 0;
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}
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int wc_CmacFinal(Cmac* cmac, byte* out, word32* outSz)
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{
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const byte* subKey;
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(void)outSz;
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if (cmac->bufferSz == AES_BLOCK_SIZE) {
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subKey = cmac->k1;
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}
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else {
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word32 remainder = AES_BLOCK_SIZE - cmac->bufferSz;
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if (remainder == 0)
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remainder = AES_BLOCK_SIZE;
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XMEMSET(cmac->buffer + AES_BLOCK_SIZE - remainder, 0, remainder);
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cmac->buffer[AES_BLOCK_SIZE - remainder] = 0x80;
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subKey = cmac->k2;
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}
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xorbuf(cmac->buffer, cmac->digest, AES_BLOCK_SIZE);
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xorbuf(cmac->buffer, subKey, AES_BLOCK_SIZE);
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wc_AesEncryptDirect(&cmac->aes, out, cmac->buffer);
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ForceZero(cmac, sizeof(Cmac));
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return 0;
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}
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#endif /* WOLFSSL_CMAC && NO_AES && WOLFSSL_AES_DIRECT */
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@ -49,6 +49,7 @@
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#include <wolfssl/wolfcrypt/rsa.h>
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#include <wolfssl/wolfcrypt/des3.h>
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#include <wolfssl/wolfcrypt/aes.h>
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#include <wolfssl/wolfcrypt/cmac.h>
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#include <wolfssl/wolfcrypt/poly1305.h>
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#include <wolfssl/wolfcrypt/camellia.h>
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#include <wolfssl/wolfcrypt/hmac.h>
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@ -180,6 +181,7 @@ int chacha20_poly1305_aead_test(void);
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int des_test(void);
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int des3_test(void);
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int aes_test(void);
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int cmac_test(void);
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int poly1305_test(void);
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int aesgcm_test(void);
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int gmac_test(void);
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@ -580,6 +582,13 @@ int wolfcrypt_test(void* args)
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printf( "ED25519 test passed!\n");
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#endif
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#if defined(WOLFSSL_CMAC) && !defined(NO_AES)
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if ( (ret = cmac_test()) != 0)
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return err_sys("CMAC test failed!\n", ret);
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else
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printf( "CMAC test passed!\n");
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#endif
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#ifdef HAVE_LIBZ
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if ( (ret = compress_test()) != 0)
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return err_sys("COMPRESS test failed!\n", ret);
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@ -2906,6 +2915,7 @@ int aes_test(void)
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return ret;
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}
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#ifdef HAVE_AESGCM
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int aesgcm_test(void)
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{
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@ -7612,6 +7622,182 @@ int ed25519_test(void)
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#endif /* HAVE_ED25519 */
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#if defined(WOLFSSL_CMAC) && !defined(NO_AES)
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typedef struct CMAC_Test_Case {
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int type;
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int partial;
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const byte* m;
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word32 mSz;
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const byte* k;
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word32 kSz;
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const byte* t;
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word32 tSz;
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} CMAC_Test_Case;
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int cmac_test(void)
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{
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const byte k128[] =
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{
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0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
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0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c
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};
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const byte k192[] =
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{
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0x8e, 0x73, 0xb0, 0xf7, 0xda, 0x0e, 0x64, 0x52,
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0xc8, 0x10, 0xf3, 0x2b, 0x80, 0x90, 0x79, 0xe5,
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0x62, 0xf8, 0xea, 0xd2, 0x52, 0x2c, 0x6b, 0x7b
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};
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const byte k256[] =
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{
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0x60, 0x3d, 0xeb, 0x10, 0x15, 0xca, 0x71, 0xbe,
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0x2b, 0x73, 0xae, 0xf0, 0x85, 0x7d, 0x77, 0x81,
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0x1f, 0x35, 0x2c, 0x07, 0x3b, 0x61, 0x08, 0xd7,
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0x2d, 0x98, 0x10, 0xa3, 0x09, 0x14, 0xdf, 0xf4
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};
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#define KLEN_128 (sizeof(k128))
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#define KLEN_192 (sizeof(k192))
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#define KLEN_256 (sizeof(k256))
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const byte m[] =
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{
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0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,
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0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
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0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c,
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0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
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0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11,
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0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
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0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17,
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0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10
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};
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#define MLEN_0 (0)
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#define MLEN_128 (128/8)
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#define MLEN_320 (320/8)
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#define MLEN_319 (MLEN_320 - 1)
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#define MLEN_512 (512/8)
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const byte t128_0[] =
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{
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0xbb, 0x1d, 0x69, 0x29, 0xe9, 0x59, 0x37, 0x28,
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0x7f, 0xa3, 0x7d, 0x12, 0x9b, 0x75, 0x67, 0x46
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};
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const byte t128_128[] =
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{
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0x07, 0x0a, 0x16, 0xb4, 0x6b, 0x4d, 0x41, 0x44,
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0xf7, 0x9b, 0xdd, 0x9d, 0xd0, 0x4a, 0x28, 0x7c
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};
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const byte t128_319[] =
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{
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0x2c, 0x17, 0x84, 0x4c, 0x93, 0x1c, 0x07, 0x95,
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0x15, 0x92, 0x73, 0x0a, 0x34, 0xd0, 0xd9, 0xd2
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};
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const byte t128_320[] =
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{
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0xdf, 0xa6, 0x67, 0x47, 0xde, 0x9a, 0xe6, 0x30,
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0x30, 0xca, 0x32, 0x61, 0x14, 0x97, 0xc8, 0x27
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};
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const byte t128_512[] =
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{
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0x51, 0xf0, 0xbe, 0xbf, 0x7e, 0x3b, 0x9d, 0x92,
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0xfc, 0x49, 0x74, 0x17, 0x79, 0x36, 0x3c, 0xfe
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};
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const byte t192_0[] =
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{
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0xd1, 0x7d, 0xdf, 0x46, 0xad, 0xaa, 0xcd, 0xe5,
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0x31, 0xca, 0xc4, 0x83, 0xde, 0x7a, 0x93, 0x67
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};
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const byte t192_128[] =
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{
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0x9e, 0x99, 0xa7, 0xbf, 0x31, 0xe7, 0x10, 0x90,
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0x06, 0x62, 0xf6, 0x5e, 0x61, 0x7c, 0x51, 0x84
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};
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const byte t192_320[] =
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{
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0x8a, 0x1d, 0xe5, 0xbe, 0x2e, 0xb3, 0x1a, 0xad,
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0x08, 0x9a, 0x82, 0xe6, 0xee, 0x90, 0x8b, 0x0e
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};
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const byte t192_512[] =
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{
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0xa1, 0xd5, 0xdf, 0x0e, 0xed, 0x79, 0x0f, 0x79,
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0x4d, 0x77, 0x58, 0x96, 0x59, 0xf3, 0x9a, 0x11
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};
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const byte t256_0[] =
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{
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0x02, 0x89, 0x62, 0xf6, 0x1b, 0x7b, 0xf8, 0x9e,
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0xfc, 0x6b, 0x55, 0x1f, 0x46, 0x67, 0xd9, 0x83
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};
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const byte t256_128[] =
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{
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0x28, 0xa7, 0x02, 0x3f, 0x45, 0x2e, 0x8f, 0x82,
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0xbd, 0x4b, 0xf2, 0x8d, 0x8c, 0x37, 0xc3, 0x5c
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};
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const byte t256_320[] =
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{
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0xaa, 0xf3, 0xd8, 0xf1, 0xde, 0x56, 0x40, 0xc2,
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0x32, 0xf5, 0xb1, 0x69, 0xb9, 0xc9, 0x11, 0xe6
|
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};
|
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const byte t256_512[] =
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{
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0xe1, 0x99, 0x21, 0x90, 0x54, 0x9f, 0x6e, 0xd5,
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0x69, 0x6a, 0x2c, 0x05, 0x6c, 0x31, 0x54, 0x10
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};
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const CMAC_Test_Case testCases[] =
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{
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{0, 0, m, MLEN_0, k128, KLEN_128, t128_0, AES_BLOCK_SIZE},
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{0, 0, m, MLEN_128, k128, KLEN_128, t128_128, AES_BLOCK_SIZE},
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{0, 0, m, MLEN_320, k128, KLEN_128, t128_320, AES_BLOCK_SIZE},
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{0, 0, m, MLEN_512, k128, KLEN_128, t128_512, AES_BLOCK_SIZE},
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{0, 5, m, MLEN_512, k128, KLEN_128, t128_512, AES_BLOCK_SIZE},
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{0, 0, m, MLEN_0, k192, KLEN_192, t192_0, AES_BLOCK_SIZE},
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{0, 0, m, MLEN_128, k192, KLEN_192, t192_128, AES_BLOCK_SIZE},
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{0, 0, m, MLEN_320, k192, KLEN_192, t192_320, AES_BLOCK_SIZE},
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{0, 0, m, MLEN_512, k192, KLEN_192, t192_512, AES_BLOCK_SIZE},
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{0, 0, m, MLEN_0, k256, KLEN_256, t256_0, AES_BLOCK_SIZE},
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{0, 0, m, MLEN_128, k256, KLEN_256, t256_128, AES_BLOCK_SIZE},
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{0, 0, m, MLEN_320, k256, KLEN_256, t256_320, AES_BLOCK_SIZE},
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{0, 0, m, MLEN_512, k256, KLEN_256, t256_512, AES_BLOCK_SIZE},
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{0, 0, m, MLEN_319, k128, KLEN_128, t128_319, AES_BLOCK_SIZE}
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};
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Cmac cmac;
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byte tag[AES_BLOCK_SIZE];
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const CMAC_Test_Case* tc;
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word32 i, tagSz;
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|
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for (i = 0, tc = testCases;
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i < sizeof(testCases)/sizeof(CMAC_Test_Case);
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i++, tc++) {
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XMEMSET(tag, 0, sizeof(tag));
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tagSz = AES_BLOCK_SIZE;
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if (wc_InitCmac(&cmac, tc->k, tc->kSz, tc->type, NULL) != 0)
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return -4033;
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if (tc->partial) {
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if (wc_CmacUpdate(&cmac, tc->m,
|
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tc->mSz/2 - tc->partial) != 0)
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return -4034;
|
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if (wc_CmacUpdate(&cmac, tc->m + tc->mSz/2 - tc->partial,
|
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tc->mSz/2 + tc->partial) != 0)
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return -4035;
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}
|
||||
else {
|
||||
if (wc_CmacUpdate(&cmac, tc->m, tc->mSz) != 0)
|
||||
return -4034;
|
||||
}
|
||||
if (wc_CmacFinal(&cmac, tag, &tagSz) != 0)
|
||||
return -4036;
|
||||
if (XMEMCMP(tag, tc->t, AES_BLOCK_SIZE) != 0)
|
||||
return -4037;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#endif /* NO_AES && WOLFSSL_CMAC */
|
||||
|
||||
#ifdef HAVE_LIBZ
|
||||
|
||||
const byte sample_text[] =
|
||||
|
||||
64
wolfssl/wolfcrypt/cmac.h
Normal file
64
wolfssl/wolfcrypt/cmac.h
Normal file
@ -0,0 +1,64 @@
|
||||
/* cmac.h
|
||||
*
|
||||
* Copyright (C) 2006-2016 wolfSSL Inc.
|
||||
*
|
||||
* This file is part of wolfSSL.
|
||||
*
|
||||
* wolfSSL 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.
|
||||
*
|
||||
* wolfSSL 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 02110-1335, USA
|
||||
*/
|
||||
|
||||
|
||||
#ifndef WOLF_CRYPT_CMAC_H
|
||||
#define WOLF_CRYPT_CMAC_H
|
||||
|
||||
#include <wolfssl/wolfcrypt/types.h>
|
||||
#include <wolfssl/wolfcrypt/aes.h>
|
||||
|
||||
#if !defined(NO_AES) && defined(WOLFSSL_CMAC)
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
typedef struct Cmac {
|
||||
Aes aes;
|
||||
byte buffer[AES_BLOCK_SIZE]; /* partially stored block */
|
||||
byte digest[AES_BLOCK_SIZE]; /* running digest */
|
||||
byte k1[AES_BLOCK_SIZE];
|
||||
byte k2[AES_BLOCK_SIZE];
|
||||
word32 bufferSz;
|
||||
word32 totalSz;
|
||||
} Cmac;
|
||||
|
||||
|
||||
WOLFSSL_API
|
||||
int wc_InitCmac(Cmac* cmac,
|
||||
const byte* key, word32 keySz,
|
||||
int type, void* unused);
|
||||
WOLFSSL_API
|
||||
int wc_CmacUpdate(Cmac* cmac,
|
||||
const byte* in, word32 inSz);
|
||||
WOLFSSL_API
|
||||
int wc_CmacFinal(Cmac* cmac,
|
||||
byte* out, word32* outSz);
|
||||
|
||||
#ifdef __cplusplus
|
||||
} /* extern "C" */
|
||||
#endif
|
||||
|
||||
|
||||
#endif /* NO_AES && WOLFSSL_CMAC */
|
||||
#endif /* WOLF_CRYPT_CMAC_H */
|
||||
|
||||
@ -8,6 +8,7 @@ nobase_include_HEADERS+= \
|
||||
wolfssl/wolfcrypt/asn_public.h \
|
||||
wolfssl/wolfcrypt/poly1305.h \
|
||||
wolfssl/wolfcrypt/camellia.h \
|
||||
wolfssl/wolfcrypt/cmac.h \
|
||||
wolfssl/wolfcrypt/coding.h \
|
||||
wolfssl/wolfcrypt/compress.h \
|
||||
wolfssl/wolfcrypt/des3.h \
|
||||
|
||||
Reference in New Issue
Block a user