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- /*
- * Copyright (C) 2011-2018 Intel Corporation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * 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.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS 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 COPYRIGHT
- * OWNER OR 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.
- *
- */
-
- /* ====================================================================
- * Copyright (c) 1998-2017 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
- * openssl-core@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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-
- /* Content from openssl-1.1.0e/crypto/include/internal/md32_common.h */
-
- #ifndef SGX_PCL_MD32_COMMON_H
- #define SGX_PCL_MD32_COMMON_H
- # define ROTATE(a,n) ({ register unsigned int ret; \
- asm ( \
- "roll %1,%0" \
- : "=r"(ret) \
- : "I"(n), "0"((unsigned int)(a)) \
- : "cc"); \
- ret; \
- })
- # define HOST_c2l(c,l) ({ unsigned int r=*((const unsigned int *)(c)); \
- asm ("bswapl %0":"=r"(r):"0"(r)); \
- (c)+=4; (l)=r; })
- # define HOST_l2c(l,c) ({ unsigned int r=(l); \
- asm ("bswapl %0":"=r"(r):"0"(r)); \
- *((unsigned int *)(c))=r; (c)+=4; r; })
- int pcl_SHA256_Update(SHA256_CTX *c, void *data_, size_t len)
- {
- unsigned char *data = (unsigned char *)data_;
- unsigned char *p;
- SHA_LONG l;
- size_t n;
- if (len == 0)
- return 1;
- l = (c->Nl + (((SHA_LONG) len) << 3)) & 0xffffffffUL;
- /*
- * 95-05-24 eay Fixed a bug with the overflow handling, thanks to Wei Dai
- * <weidai@eskimo.com> for pointing it out.
- */
- if (l < c->Nl) /* overflow */
- c->Nh++;
- c->Nh += (SHA_LONG) (len >> 29); /* might cause compiler warning on
- * 16-bit */
- c->Nl = l;
- /* PCL UNUSED START *
- n = c->num;
- if (n != 0) {
- p = (unsigned char *)c->data;
- if (len >= SHA_CBLOCK || len + n >= SHA_CBLOCK) {
- pcl_memcpy(p + n, data, SHA_CBLOCK - n);
- pcl_sha256_block_data_order(c, p, 1);
- n = SHA_CBLOCK - n;
- data += n;
- len -= n;
- c->num = 0;
- /*
- * We use memset rather than OPENSSL_cleanse() here deliberately.
- * Using OPENSSL_cleanse() here could be a performance issue. It
- * will get properly cleansed on finalisation so this isn't a
- * security problem.
- * /
- pcl_memset(p, 0, SHA_CBLOCK); /* keep it zeroed * /
- } else {
- pcl_memcpy(p + n, data, len);
- c->num += (unsigned int)len;
- return 1;
- }
- }
- /* PCL UNUSED END */
- n = len / SHA_CBLOCK;
- if (n > 0) {
- pcl_sha256_block_data_order(c, data, n);
- n *= SHA_CBLOCK;
- data += n;
- len -= n;
- }
- if (len != 0) {
- p = (unsigned char *)c->data;
- c->num = (unsigned int)len;
- pcl_memcpy(p, data, len);
- }
- return 1;
- }
- int pcl_SHA256_Final(unsigned char *md, SHA256_CTX *c)
- {
- unsigned char *p = (unsigned char *)c->data;
- size_t n = c->num;
- p[n] = 0x80; /* there is always room for one */
- n++;
- if (n > (SHA_CBLOCK - 8)) {
- pcl_memset(p + n, 0, SHA_CBLOCK - n);
- n = 0;
- pcl_sha256_block_data_order(c, p, 1);
- }
- pcl_memset(p + n, 0, SHA_CBLOCK - 8 - n);
- p += SHA_CBLOCK - 8;
- /* PCL UNUSED START *
- #if defined(DATA_ORDER_IS_BIG_ENDIAN)
- /* PCL UNUSED END */
- (void)HOST_l2c(c->Nh, p);
- (void)HOST_l2c(c->Nl, p);
- /* PCL UNUSED START *
- #elif defined(DATA_ORDER_IS_LITTLE_ENDIAN)
- (void)HOST_l2c(c->Nl, p);
- (void)HOST_l2c(c->Nh, p);
- #endif
- /* PCL UNUSED END */
- p -= SHA_CBLOCK;
- pcl_sha256_block_data_order(c, p, 1);
- c->num = 0;
- pcl_memset(p, 0, SHA_CBLOCK);
- /* PCL UNUSED START *
- #ifndef HASH_MAKE_STRING
- # error "HASH_MAKE_STRING must be defined!"
- #else
- /* PCL UNUSED END */
- HASH_MAKE_STRING(c, md);
- /* PCL UNUSED START *
- #endif
- /* PCL UNUSED END */
- return 1;
- }
- #define MD32_REG_T int
- #endif // #ifndef SGX_PCL_MD32_COMMON_H
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