diff options
Diffstat (limited to 'crypto/libressl/crypto/aes/aes_wrap.c')
| -rw-r--r-- | crypto/libressl/crypto/aes/aes_wrap.c | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/crypto/libressl/crypto/aes/aes_wrap.c b/crypto/libressl/crypto/aes/aes_wrap.c deleted file mode 100644 index b30630f..0000000 --- a/crypto/libressl/crypto/aes/aes_wrap.c +++ /dev/null @@ -1,133 +0,0 @@ -/* $OpenBSD: aes_wrap.c,v 1.12 2018/11/07 18:31:16 tb Exp $ */ -/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL - * project. - */ -/* ==================================================================== - * Copyright (c) 2008 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 <string.h> - -#include <openssl/aes.h> -#include <openssl/bio.h> - -static const unsigned char default_iv[] = { - 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, -}; - -int -AES_wrap_key(AES_KEY *key, const unsigned char *iv, unsigned char *out, - const unsigned char *in, unsigned int inlen) -{ - unsigned char *A, B[16], *R; - unsigned int i, j, t; - - if ((inlen & 0x7) || (inlen < 16)) - return -1; - A = B; - t = 1; - memmove(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); - AES_encrypt(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; -} - -int -AES_unwrap_key(AES_KEY *key, const unsigned char *iv, unsigned char *out, - const unsigned char *in, unsigned int inlen) -{ - unsigned char *A, B[16], *R; - unsigned int i, j, t; - - if ((inlen & 0x7) || (inlen < 24)) - return -1; - inlen -= 8; - A = B; - t = 6 * (inlen >> 3); - memcpy(A, in, 8); - memmove(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); - AES_decrypt(B, B, key); - memcpy(R, B + 8, 8); - } - } - if (!iv) - iv = default_iv; - if (memcmp(A, iv, 8)) { - explicit_bzero(out, inlen); - return 0; - } - return inlen; -} |