diff options
Diffstat (limited to 'lib/libcrypto/evp/e_rc4_hmac_md5.c')
| -rw-r--r-- | lib/libcrypto/evp/e_rc4_hmac_md5.c | 308 |
1 files changed, 0 insertions, 308 deletions
diff --git a/lib/libcrypto/evp/e_rc4_hmac_md5.c b/lib/libcrypto/evp/e_rc4_hmac_md5.c deleted file mode 100644 index 420b945a80e..00000000000 --- a/lib/libcrypto/evp/e_rc4_hmac_md5.c +++ /dev/null @@ -1,308 +0,0 @@ -/* $OpenBSD: e_rc4_hmac_md5.c,v 1.15 2024/01/07 16:18:18 tb Exp $ */ -/* ==================================================================== - * Copyright (c) 2011 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 <stdio.h> -#include <string.h> - -#include <openssl/opensslconf.h> - -#if !defined(OPENSSL_NO_RC4) && !defined(OPENSSL_NO_MD5) - -#include <openssl/evp.h> -#include <openssl/objects.h> -#include <openssl/rc4.h> -#include <openssl/md5.h> - -#include "evp_local.h" - -/* FIXME: surely this is available elsewhere? */ -#define EVP_RC4_KEY_SIZE 16 - -typedef struct { - RC4_KEY ks; - MD5_CTX head, tail, md; - size_t payload_length; -} EVP_RC4_HMAC_MD5; - -#define NO_PAYLOAD_LENGTH ((size_t)-1) - -void rc4_md5_enc (RC4_KEY *key, const void *in0, void *out, - MD5_CTX *ctx, const void *inp, size_t blocks); - -#define data(ctx) ((EVP_RC4_HMAC_MD5 *)(ctx)->cipher_data) - -static int -rc4_hmac_md5_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *inkey, - const unsigned char *iv, int enc) -{ - EVP_RC4_HMAC_MD5 *key = data(ctx); - - RC4_set_key(&key->ks, EVP_CIPHER_CTX_key_length(ctx), inkey); - - MD5_Init(&key->head); /* handy when benchmarking */ - key->tail = key->head; - key->md = key->head; - - key->payload_length = NO_PAYLOAD_LENGTH; - - return 1; -} - -#if !defined(OPENSSL_NO_ASM) && defined(RC4_MD5_ASM) && ( \ - defined(__x86_64) || defined(__x86_64__) || \ - defined(_M_AMD64) || defined(_M_X64) || \ - defined(__INTEL__) ) && \ - !(defined(__APPLE__) && defined(__MACH__)) -#define STITCHED_CALL -#include "x86_arch.h" -#endif - -#if !defined(STITCHED_CALL) -#define rc4_off 0 -#define md5_off 0 -#endif - -static int -rc4_hmac_md5_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, - const unsigned char *in, size_t len) -{ - EVP_RC4_HMAC_MD5 *key = data(ctx); -#if defined(STITCHED_CALL) - size_t rc4_off = 32-1-(key->ks.x&(32-1)), /* 32 is $MOD from rc4_md5-x86_64.pl */ - md5_off = MD5_CBLOCK - key->md.num, - blocks; - unsigned int l; -#endif - size_t plen = key->payload_length; - - if (plen != NO_PAYLOAD_LENGTH && len != (plen + MD5_DIGEST_LENGTH)) - return 0; - - if (ctx->encrypt) { - if (plen == NO_PAYLOAD_LENGTH) - plen = len; -#if defined(STITCHED_CALL) - /* cipher has to "fall behind" */ - if (rc4_off > md5_off) - md5_off += MD5_CBLOCK; - - if (plen > md5_off && - (blocks = (plen - md5_off) / MD5_CBLOCK) && - (OPENSSL_cpu_caps() & CPUCAP_MASK_INTELP4) == 0) { - MD5_Update(&key->md, in, md5_off); - RC4(&key->ks, rc4_off, in, out); - - rc4_md5_enc(&key->ks, in + rc4_off, out + rc4_off, - &key->md, in + md5_off, blocks); - blocks *= MD5_CBLOCK; - rc4_off += blocks; - md5_off += blocks; - key->md.Nh += blocks >> 29; - key->md.Nl += blocks <<= 3; - if (key->md.Nl < (unsigned int)blocks) - key->md.Nh++; - } else { - rc4_off = 0; - md5_off = 0; - } -#endif - MD5_Update(&key->md, in + md5_off, plen - md5_off); - - if (plen!=len) { /* "TLS" mode of operation */ - if (in != out) - memcpy(out + rc4_off, in + rc4_off, - plen - rc4_off); - - /* calculate HMAC and append it to payload */ - MD5_Final(out + plen, &key->md); - key->md = key->tail; - MD5_Update(&key->md, out + plen, MD5_DIGEST_LENGTH); - MD5_Final(out + plen, &key->md); - - /* encrypt HMAC at once */ - RC4(&key->ks, len - rc4_off, out + rc4_off, - out + rc4_off); - } else { - RC4(&key->ks, len - rc4_off, in + rc4_off, - out + rc4_off); - } - } else { - unsigned char mac[MD5_DIGEST_LENGTH]; -#if defined(STITCHED_CALL) - /* digest has to "fall behind" */ - if (md5_off > rc4_off) - rc4_off += 2*MD5_CBLOCK; - else - rc4_off += MD5_CBLOCK; - - if (len > rc4_off && (blocks = (len - rc4_off) / MD5_CBLOCK) && - (OPENSSL_cpu_caps() & CPUCAP_MASK_INTELP4) == 0) { - RC4(&key->ks, rc4_off, in, out); - MD5_Update(&key->md, out, md5_off); - - rc4_md5_enc(&key->ks, in + rc4_off, out + rc4_off, - &key->md, out + md5_off, blocks); - blocks *= MD5_CBLOCK; - rc4_off += blocks; - md5_off += blocks; - l = (key->md.Nl + (blocks << 3)) & 0xffffffffU; - if (l < key->md.Nl) - key->md.Nh++; - key->md.Nl = l; - key->md.Nh += blocks >> 29; - } else { - md5_off = 0; - rc4_off = 0; - } -#endif - /* decrypt HMAC at once */ - RC4(&key->ks, len - rc4_off, in + rc4_off, out + rc4_off); - if (plen!=NO_PAYLOAD_LENGTH) { /* "TLS" mode of operation */ - MD5_Update(&key->md, out + md5_off, plen - md5_off); - - /* calculate HMAC and verify it */ - MD5_Final(mac, &key->md); - key->md = key->tail; - MD5_Update(&key->md, mac, MD5_DIGEST_LENGTH); - MD5_Final(mac, &key->md); - - if (memcmp(out + plen, mac, MD5_DIGEST_LENGTH)) - return 0; - } else { - MD5_Update(&key->md, out + md5_off, len - md5_off); - } - } - - key->payload_length = NO_PAYLOAD_LENGTH; - - return 1; -} - -static int -rc4_hmac_md5_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr) -{ - EVP_RC4_HMAC_MD5 *key = data(ctx); - - switch (type) { - case EVP_CTRL_AEAD_SET_MAC_KEY: - { - unsigned int i; - unsigned char hmac_key[64]; - - memset (hmac_key, 0, sizeof(hmac_key)); - - if (arg > (int)sizeof(hmac_key)) { - MD5_Init(&key->head); - MD5_Update(&key->head, ptr, arg); - MD5_Final(hmac_key, &key->head); - } else { - memcpy(hmac_key, ptr, arg); - } - - for (i = 0; i < sizeof(hmac_key); i++) - hmac_key[i] ^= 0x36; /* ipad */ - MD5_Init(&key->head); - MD5_Update(&key->head, hmac_key, sizeof(hmac_key)); - - for (i = 0; i < sizeof(hmac_key); i++) - hmac_key[i] ^= 0x36 ^ 0x5c; /* opad */ - MD5_Init(&key->tail); - MD5_Update(&key->tail, hmac_key, sizeof(hmac_key)); - - return 1; - } - case EVP_CTRL_AEAD_TLS1_AAD: - { - unsigned char *p = ptr; - unsigned int len = p[arg - 2] << 8 | p[arg - 1]; - - if (!ctx->encrypt) { - if (len < MD5_DIGEST_LENGTH) - return -1; - len -= MD5_DIGEST_LENGTH; - p[arg - 2] = len >> 8; - p[arg - 1] = len; - } - key->payload_length = len; - key->md = key->head; - MD5_Update(&key->md, p, arg); - - return MD5_DIGEST_LENGTH; - } - default: - return -1; - } -} - -static const EVP_CIPHER r4_hmac_md5_cipher = { -#ifdef NID_rc4_hmac_md5 - .nid = NID_rc4_hmac_md5, -#else - .nid = NID_undef, -#endif - .block_size = 1, - .key_len = EVP_RC4_KEY_SIZE, - .iv_len = 0, - .flags = EVP_CIPH_STREAM_CIPHER|EVP_CIPH_VARIABLE_LENGTH|EVP_CIPH_FLAG_AEAD_CIPHER, - .init = rc4_hmac_md5_init_key, - .do_cipher = rc4_hmac_md5_cipher, - .cleanup = NULL, - .ctx_size = sizeof(EVP_RC4_HMAC_MD5), - .set_asn1_parameters = NULL, - .get_asn1_parameters = NULL, - .ctrl = rc4_hmac_md5_ctrl, -}; - -const EVP_CIPHER * -EVP_rc4_hmac_md5(void) -{ - return (&r4_hmac_md5_cipher); -} -#endif |