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authorJung-uk Kim <jkim@FreeBSD.org>2015-10-30 20:51:33 +0000
committerJung-uk Kim <jkim@FreeBSD.org>2015-10-30 20:51:33 +0000
commit7bded2db17780f5b59bc532689d8a9541f06901e (patch)
treee8d8b5ada49f5cdbf70d1e455c13f2625fdcdd45 /crypto/openssl/crypto/modes/wrap128.c
parent50657fd342bcf1886e5b6d2c74605bbdd6b91bed (diff)
parente9fcefce9bb70f20c272a996443928c5f6ab8cd8 (diff)
downloadsrc-7bded2db17780f5b59bc532689d8a9541f06901e.tar.gz
src-7bded2db17780f5b59bc532689d8a9541f06901e.zip
Merge OpenSSL 1.0.2d.
Notes
Notes: svn path=/head/; revision=290207
Diffstat (limited to 'crypto/openssl/crypto/modes/wrap128.c')
-rw-r--r--crypto/openssl/crypto/modes/wrap128.c138
1 files changed, 138 insertions, 0 deletions
diff --git a/crypto/openssl/crypto/modes/wrap128.c b/crypto/openssl/crypto/modes/wrap128.c
new file mode 100644
index 000000000000..4dcaf0326fa8
--- /dev/null
+++ b/crypto/openssl/crypto/modes/wrap128.c
@@ -0,0 +1,138 @@
+/* crypto/modes/wrap128.c */
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project.
+ */
+/* ====================================================================
+ * Copyright (c) 2013 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.
+ *
+ * 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 "cryptlib.h"
+#include <openssl/modes.h>
+
+static const unsigned char default_iv[] = {
+ 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6,
+};
+
+/*
+ * Input size limit: lower than maximum of standards but far larger than
+ * anything that will be used in practice.
+ */
+#define CRYPTO128_WRAP_MAX (1UL << 31)
+
+size_t CRYPTO_128_wrap(void *key, const unsigned char *iv,
+ unsigned char *out,
+ const unsigned char *in, size_t inlen,
+ block128_f block)
+{
+ unsigned char *A, B[16], *R;
+ size_t i, j, t;
+ if ((inlen & 0x7) || (inlen < 8) || (inlen > CRYPTO128_WRAP_MAX))
+ return 0;
+ A = B;
+ t = 1;
+ memcpy(out + 8, in, inlen);
+ if (!iv)
+ iv = default_iv;
+
+ memcpy(A, iv, 8);
+
+ for (j = 0; j < 6; j++) {
+ R = out + 8;
+ for (i = 0; i < inlen; i += 8, t++, R += 8) {
+ memcpy(B + 8, R, 8);
+ block(B, B, key);
+ A[7] ^= (unsigned char)(t & 0xff);
+ if (t > 0xff) {
+ A[6] ^= (unsigned char)((t >> 8) & 0xff);
+ A[5] ^= (unsigned char)((t >> 16) & 0xff);
+ A[4] ^= (unsigned char)((t >> 24) & 0xff);
+ }
+ memcpy(R, B + 8, 8);
+ }
+ }
+ memcpy(out, A, 8);
+ return inlen + 8;
+}
+
+size_t CRYPTO_128_unwrap(void *key, const unsigned char *iv,
+ unsigned char *out,
+ const unsigned char *in, size_t inlen,
+ block128_f block)
+{
+ unsigned char *A, B[16], *R;
+ size_t i, j, t;
+ inlen -= 8;
+ if ((inlen & 0x7) || (inlen < 16) || (inlen > CRYPTO128_WRAP_MAX))
+ return 0;
+ A = B;
+ t = 6 * (inlen >> 3);
+ memcpy(A, in, 8);
+ memcpy(out, in + 8, inlen);
+ for (j = 0; j < 6; j++) {
+ R = out + inlen - 8;
+ for (i = 0; i < inlen; i += 8, t--, R -= 8) {
+ A[7] ^= (unsigned char)(t & 0xff);
+ if (t > 0xff) {
+ A[6] ^= (unsigned char)((t >> 8) & 0xff);
+ A[5] ^= (unsigned char)((t >> 16) & 0xff);
+ A[4] ^= (unsigned char)((t >> 24) & 0xff);
+ }
+ memcpy(B + 8, R, 8);
+ block(B, B, key);
+ memcpy(R, B + 8, 8);
+ }
+ }
+ if (!iv)
+ iv = default_iv;
+ if (memcmp(A, iv, 8)) {
+ OPENSSL_cleanse(out, inlen);
+ return 0;
+ }
+ return inlen;
+}