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authorPeter Jones <pjones@redhat.com>2017-08-31 13:57:30 -0400
committerPeter Jones <pjones@redhat.com>2017-08-31 15:13:58 -0400
commit1d39ada8cb336d9e7c156be7526b674851fbdd40 (patch)
treedc497e33b1d4830bf58d79dedc3026087f31f044 /Cryptlib/OpenSSL/crypto/cmac/cmac.c
parenteae64276ffe0361d2b4087c48390d12f157f65f0 (diff)
downloadefi-boot-shim-1d39ada8cb336d9e7c156be7526b674851fbdd40.tar.gz
efi-boot-shim-1d39ada8cb336d9e7c156be7526b674851fbdd40.zip
Revert lots of Cryptlib updates.
OpenSSL changes quite a bit of the key validation, and most of the keys I can find in the wild aren't marked as trusted by the new checker. Intel noticed this too: https://github.com/vathpela/edk2/commit/f536d7c3ed but instead of fixing the compatibility error, they switched their test data to match the bug. So that's pretty broken. For now, I'm reverting OpenSSL 1.1.0e, because we need those certs in the wild to work. This reverts commit 513cbe2aea689bf968f171f894f3d4cdb43524d5. This reverts commit e9cc33d6f2b7f35c6f5e349fd83fb9ae0bc66226. This reverts commit 80d49f758ead0180bfe6161931838e0578248303. This reverts commit 9bc647e2b23bcfd69a0077c0717fbc454c919a57. This reverts commit ae75df6232ad30f3e8736e9449692d58a7439260. This reverts commit e883479f35644d17db7efed710657c8543cfcb68. This reverts commit 97469449fda5ba933a64280917e776487301a127. This reverts commit e39692647f78e13d757ddbfdd36f440d5f526050. This reverts commit 0f3dfc01e2d5e7df882c963dd8dc4a0dfbfc96ad. This reverts commit 4da6ac819510c7cc4ba21d7a735d69b45daa5873. This reverts commit d064bd7eef201f26cb926450a76260b5187ac689. This reverts commit 9bc86cfd6f9387f0da9d5c0102b6aa5627e91c91. This reverts commit ab9a05a10f16b33f7ee1e9da360c7801eebdb9d2. Signed-off-by: Peter Jones <pjones@redhat.com>
Diffstat (limited to 'Cryptlib/OpenSSL/crypto/cmac/cmac.c')
-rw-r--r--Cryptlib/OpenSSL/crypto/cmac/cmac.c173
1 files changed, 128 insertions, 45 deletions
diff --git a/Cryptlib/OpenSSL/crypto/cmac/cmac.c b/Cryptlib/OpenSSL/crypto/cmac/cmac.c
index c4f13a06..2954b6eb 100644
--- a/Cryptlib/OpenSSL/crypto/cmac/cmac.c
+++ b/Cryptlib/OpenSSL/crypto/cmac/cmac.c
@@ -1,21 +1,70 @@
+/* crypto/cmac/cmac.c */
/*
- * Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project.
+ */
+/* ====================================================================
+ * Copyright (c) 2010 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
- * this file except in compliance with the License. You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include "internal/cryptlib.h"
+#include "cryptlib.h"
#include <openssl/cmac.h>
+#ifdef OPENSSL_FIPS
+# include <openssl/fips.h>
+#endif
+
struct CMAC_CTX_st {
/* Cipher context to use */
- EVP_CIPHER_CTX *cctx;
+ EVP_CIPHER_CTX cctx;
/* Keys k1 and k2 */
unsigned char k1[EVP_MAX_BLOCK_LENGTH];
unsigned char k2[EVP_MAX_BLOCK_LENGTH];
@@ -29,38 +78,40 @@ struct CMAC_CTX_st {
/* Make temporary keys K1 and K2 */
-static void make_kn(unsigned char *k1, const unsigned char *l, int bl)
+static void make_kn(unsigned char *k1, unsigned char *l, int bl)
{
int i;
- unsigned char c = l[0], carry = c >> 7, cnext;
-
/* Shift block to left, including carry */
- for (i = 0; i < bl - 1; i++, c = cnext)
- k1[i] = (c << 1) | ((cnext = l[i + 1]) >> 7);
-
+ for (i = 0; i < bl; i++) {
+ k1[i] = l[i] << 1;
+ if (i < bl - 1 && l[i + 1] & 0x80)
+ k1[i] |= 1;
+ }
/* If MSB set fixup with R */
- k1[i] = (c << 1) ^ ((0 - carry) & (bl == 16 ? 0x87 : 0x1b));
+ if (l[0] & 0x80)
+ k1[bl - 1] ^= bl == 16 ? 0x87 : 0x1b;
}
CMAC_CTX *CMAC_CTX_new(void)
{
CMAC_CTX *ctx;
-
- ctx = OPENSSL_malloc(sizeof(*ctx));
- if (ctx == NULL)
- return NULL;
- ctx->cctx = EVP_CIPHER_CTX_new();
- if (ctx->cctx == NULL) {
- OPENSSL_free(ctx);
+ ctx = OPENSSL_malloc(sizeof(CMAC_CTX));
+ if (!ctx)
return NULL;
- }
+ EVP_CIPHER_CTX_init(&ctx->cctx);
ctx->nlast_block = -1;
return ctx;
}
void CMAC_CTX_cleanup(CMAC_CTX *ctx)
{
- EVP_CIPHER_CTX_free(ctx->cctx);
+#ifdef OPENSSL_FIPS
+ if (FIPS_mode() && !ctx->cctx.engine) {
+ FIPS_cmac_ctx_cleanup(ctx);
+ return;
+ }
+#endif
+ EVP_CIPHER_CTX_cleanup(&ctx->cctx);
OPENSSL_cleanse(ctx->tbl, EVP_MAX_BLOCK_LENGTH);
OPENSSL_cleanse(ctx->k1, EVP_MAX_BLOCK_LENGTH);
OPENSSL_cleanse(ctx->k2, EVP_MAX_BLOCK_LENGTH);
@@ -70,7 +121,7 @@ void CMAC_CTX_cleanup(CMAC_CTX *ctx)
EVP_CIPHER_CTX *CMAC_CTX_get0_cipher_ctx(CMAC_CTX *ctx)
{
- return ctx->cctx;
+ return &ctx->cctx;
}
void CMAC_CTX_free(CMAC_CTX *ctx)
@@ -86,9 +137,9 @@ int CMAC_CTX_copy(CMAC_CTX *out, const CMAC_CTX *in)
int bl;
if (in->nlast_block == -1)
return 0;
- if (!EVP_CIPHER_CTX_copy(out->cctx, in->cctx))
+ if (!EVP_CIPHER_CTX_copy(&out->cctx, &in->cctx))
return 0;
- bl = EVP_CIPHER_CTX_block_size(in->cctx);
+ bl = EVP_CIPHER_CTX_block_size(&in->cctx);
memcpy(out->k1, in->k1, bl);
memcpy(out->k2, in->k2, bl);
memcpy(out->tbl, in->tbl, bl);
@@ -100,38 +151,62 @@ int CMAC_CTX_copy(CMAC_CTX *out, const CMAC_CTX *in)
int CMAC_Init(CMAC_CTX *ctx, const void *key, size_t keylen,
const EVP_CIPHER *cipher, ENGINE *impl)
{
- static const unsigned char zero_iv[EVP_MAX_BLOCK_LENGTH] = { 0 };
+ static unsigned char zero_iv[EVP_MAX_BLOCK_LENGTH];
+#ifdef OPENSSL_FIPS
+ if (FIPS_mode()) {
+ /* If we have an ENGINE need to allow non FIPS */
+ if ((impl || ctx->cctx.engine)
+ && !(ctx->cctx.flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW)) {
+ EVPerr(EVP_F_CMAC_INIT, EVP_R_DISABLED_FOR_FIPS);
+ return 0;
+ }
+
+ /* Switch to FIPS cipher implementation if possible */
+ if (cipher != NULL) {
+ const EVP_CIPHER *fcipher;
+ fcipher = FIPS_get_cipherbynid(EVP_CIPHER_nid(cipher));
+ if (fcipher != NULL)
+ cipher = fcipher;
+ }
+ /*
+ * Other algorithm blocking will be done in FIPS_cmac_init, via
+ * FIPS_cipherinit().
+ */
+ if (!impl && !ctx->cctx.engine)
+ return FIPS_cmac_init(ctx, key, keylen, cipher, NULL);
+ }
+#endif
/* All zeros means restart */
if (!key && !cipher && !impl && keylen == 0) {
/* Not initialised */
if (ctx->nlast_block == -1)
return 0;
- if (!EVP_EncryptInit_ex(ctx->cctx, NULL, NULL, NULL, zero_iv))
+ if (!EVP_EncryptInit_ex(&ctx->cctx, NULL, NULL, NULL, zero_iv))
return 0;
- memset(ctx->tbl, 0, EVP_CIPHER_CTX_block_size(ctx->cctx));
+ memset(ctx->tbl, 0, EVP_CIPHER_CTX_block_size(&ctx->cctx));
ctx->nlast_block = 0;
return 1;
}
- /* Initialise context */
- if (cipher && !EVP_EncryptInit_ex(ctx->cctx, cipher, impl, NULL, NULL))
+ /* Initialiase context */
+ if (cipher && !EVP_EncryptInit_ex(&ctx->cctx, cipher, impl, NULL, NULL))
return 0;
/* Non-NULL key means initialisation complete */
if (key) {
int bl;
- if (!EVP_CIPHER_CTX_cipher(ctx->cctx))
+ if (!EVP_CIPHER_CTX_cipher(&ctx->cctx))
return 0;
- if (!EVP_CIPHER_CTX_set_key_length(ctx->cctx, keylen))
+ if (!EVP_CIPHER_CTX_set_key_length(&ctx->cctx, keylen))
return 0;
- if (!EVP_EncryptInit_ex(ctx->cctx, NULL, NULL, key, zero_iv))
+ if (!EVP_EncryptInit_ex(&ctx->cctx, NULL, NULL, key, zero_iv))
return 0;
- bl = EVP_CIPHER_CTX_block_size(ctx->cctx);
- if (!EVP_Cipher(ctx->cctx, ctx->tbl, zero_iv, bl))
+ bl = EVP_CIPHER_CTX_block_size(&ctx->cctx);
+ if (!EVP_Cipher(&ctx->cctx, ctx->tbl, zero_iv, bl))
return 0;
make_kn(ctx->k1, ctx->tbl, bl);
make_kn(ctx->k2, ctx->k1, bl);
OPENSSL_cleanse(ctx->tbl, bl);
/* Reset context again ready for first data block */
- if (!EVP_EncryptInit_ex(ctx->cctx, NULL, NULL, NULL, zero_iv))
+ if (!EVP_EncryptInit_ex(&ctx->cctx, NULL, NULL, NULL, zero_iv))
return 0;
/* Zero tbl so resume works */
memset(ctx->tbl, 0, bl);
@@ -144,11 +219,15 @@ int CMAC_Update(CMAC_CTX *ctx, const void *in, size_t dlen)
{
const unsigned char *data = in;
size_t bl;
+#ifdef OPENSSL_FIPS
+ if (FIPS_mode() && !ctx->cctx.engine)
+ return FIPS_cmac_update(ctx, in, dlen);
+#endif
if (ctx->nlast_block == -1)
return 0;
if (dlen == 0)
return 1;
- bl = EVP_CIPHER_CTX_block_size(ctx->cctx);
+ bl = EVP_CIPHER_CTX_block_size(&ctx->cctx);
/* Copy into partial block if we need to */
if (ctx->nlast_block > 0) {
size_t nleft;
@@ -163,12 +242,12 @@ int CMAC_Update(CMAC_CTX *ctx, const void *in, size_t dlen)
return 1;
data += nleft;
/* Else not final block so encrypt it */
- if (!EVP_Cipher(ctx->cctx, ctx->tbl, ctx->last_block, bl))
+ if (!EVP_Cipher(&ctx->cctx, ctx->tbl, ctx->last_block, bl))
return 0;
}
/* Encrypt all but one of the complete blocks left */
while (dlen > bl) {
- if (!EVP_Cipher(ctx->cctx, ctx->tbl, data, bl))
+ if (!EVP_Cipher(&ctx->cctx, ctx->tbl, data, bl))
return 0;
dlen -= bl;
data += bl;
@@ -183,9 +262,13 @@ int CMAC_Update(CMAC_CTX *ctx, const void *in, size_t dlen)
int CMAC_Final(CMAC_CTX *ctx, unsigned char *out, size_t *poutlen)
{
int i, bl, lb;
+#ifdef OPENSSL_FIPS
+ if (FIPS_mode() && !ctx->cctx.engine)
+ return FIPS_cmac_final(ctx, out, poutlen);
+#endif
if (ctx->nlast_block == -1)
return 0;
- bl = EVP_CIPHER_CTX_block_size(ctx->cctx);
+ bl = EVP_CIPHER_CTX_block_size(&ctx->cctx);
*poutlen = (size_t)bl;
if (!out)
return 1;
@@ -201,7 +284,7 @@ int CMAC_Final(CMAC_CTX *ctx, unsigned char *out, size_t *poutlen)
for (i = 0; i < bl; i++)
out[i] = ctx->last_block[i] ^ ctx->k2[i];
}
- if (!EVP_Cipher(ctx->cctx, out, out, bl)) {
+ if (!EVP_Cipher(&ctx->cctx, out, out, bl)) {
OPENSSL_cleanse(out, bl);
return 0;
}
@@ -213,11 +296,11 @@ int CMAC_resume(CMAC_CTX *ctx)
if (ctx->nlast_block == -1)
return 0;
/*
- * The buffer "tbl" contains the last fully encrypted block which is the
+ * The buffer "tbl" containes the last fully encrypted block which is the
* last IV (or all zeroes if no last encrypted block). The last block has
- * not been modified since CMAC_final(). So reinitialising using the last
+ * not been modified since CMAC_final(). So reinitliasing using the last
* decrypted block will allow CMAC to continue after calling
* CMAC_Final().
*/
- return EVP_EncryptInit_ex(ctx->cctx, NULL, NULL, NULL, ctx->tbl);
+ return EVP_EncryptInit_ex(&ctx->cctx, NULL, NULL, NULL, ctx->tbl);
}