/*
- * BLAKE2 reference source code package - reference C implementations
+ * Copyright 2016-2017 The OpenSSL Project Authors. All Rights Reserved.
*
- * Copyright 2012, Samuel Neves <sneves@dei.uc.pt>.
- * You may use this under the terms of the CC0, the OpenSSL Licence, or the
- * Apache Public License 2.0, at your option. The terms of these licenses can
- * be found at:
- *
- * - OpenSSL license : https://www.openssl.org/source/license.html
- * - Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
- * - CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
- *
- * More information about the BLAKE2 hash function can be found at
- * https://blake2.net.
+ * Licensed under the Apache License 2.0 (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
*/
-/* crypto/blake2/blake2_impl.h */
+/*
+ * Derived from the BLAKE2 reference implementation written by Samuel Neves.
+ * Copyright 2012, Samuel Neves <sneves@dei.uc.pt>
+ * More information about the BLAKE2 hash function and its implementations
+ * can be found at https://blake2.net.
+ */
-#include <stdint.h>
#include <string.h>
-static inline uint32_t load32(const void *src)
+static ossl_inline uint32_t load32(const uint8_t *src)
{
-#if defined(L_ENDIAN)
- uint32_t w;
- memcpy(&w, src, sizeof(w));
- return w;
-#else
- const uint8_t *p = (const uint8_t *)src;
- uint32_t w = *p++;
- w |= (uint32_t)(*p++) << 8;
- w |= (uint32_t)(*p++) << 16;
- w |= (uint32_t)(*p++) << 24;
- return w;
-#endif
-}
+ const union {
+ long one;
+ char little;
+ } is_endian = { 1 };
-static inline uint64_t load64(const void *src)
-{
-#if defined(L_ENDIAN)
- uint64_t w;
- memcpy(&w, src, sizeof(w));
- return w;
-#else
- const uint8_t *p = (const uint8_t *)src;
- uint64_t w = *p++;
- w |= (uint64_t)(*p++) << 8;
- w |= (uint64_t)(*p++) << 16;
- w |= (uint64_t)(*p++) << 24;
- w |= (uint64_t)(*p++) << 32;
- w |= (uint64_t)(*p++) << 40;
- w |= (uint64_t)(*p++) << 48;
- w |= (uint64_t)(*p++) << 56;
- return w;
-#endif
+ if (is_endian.little) {
+ uint32_t w;
+ memcpy(&w, src, sizeof(w));
+ return w;
+ } else {
+ uint32_t w = ((uint32_t)src[0])
+ | ((uint32_t)src[1] << 8)
+ | ((uint32_t)src[2] << 16)
+ | ((uint32_t)src[3] << 24);
+ return w;
+ }
}
-static inline void store32(void *dst, uint32_t w)
+static ossl_inline uint64_t load64(const uint8_t *src)
{
-#if defined(L_ENDIAN)
- memcpy(dst, &w, sizeof(w));
-#else
- uint8_t *p = (uint8_t *)dst;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
-#endif
-}
+ const union {
+ long one;
+ char little;
+ } is_endian = { 1 };
-static inline void store64(void *dst, uint64_t w)
-{
-#if defined(L_ENDIAN)
- memcpy(dst, &w, sizeof(w));
-#else
- uint8_t *p = (uint8_t *)dst;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
-#endif
+ if (is_endian.little) {
+ uint64_t w;
+ memcpy(&w, src, sizeof(w));
+ return w;
+ } else {
+ uint64_t w = ((uint64_t)src[0])
+ | ((uint64_t)src[1] << 8)
+ | ((uint64_t)src[2] << 16)
+ | ((uint64_t)src[3] << 24)
+ | ((uint64_t)src[4] << 32)
+ | ((uint64_t)src[5] << 40)
+ | ((uint64_t)src[6] << 48)
+ | ((uint64_t)src[7] << 56);
+ return w;
+ }
}
-static inline uint64_t load48(const void *src)
+static ossl_inline void store32(uint8_t *dst, uint32_t w)
{
- const uint8_t *p = (const uint8_t *)src;
- uint64_t w = *p++;
- w |= (uint64_t)(*p++) << 8;
- w |= (uint64_t)(*p++) << 16;
- w |= (uint64_t)(*p++) << 24;
- w |= (uint64_t)(*p++) << 32;
- w |= (uint64_t)(*p++) << 40;
- return w;
+ const union {
+ long one;
+ char little;
+ } is_endian = { 1 };
+
+ if (is_endian.little) {
+ memcpy(dst, &w, sizeof(w));
+ } else {
+ uint8_t *p = (uint8_t *)dst;
+ int i;
+
+ for (i = 0; i < 4; i++)
+ p[i] = (uint8_t)(w >> (8 * i));
+ }
}
-static inline void store48(void *dst, uint64_t w)
+static ossl_inline void store64(uint8_t *dst, uint64_t w)
{
- uint8_t *p = (uint8_t *)dst;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
- w >>= 8;
- *p++ = (uint8_t)w;
+ const union {
+ long one;
+ char little;
+ } is_endian = { 1 };
+
+ if (is_endian.little) {
+ memcpy(dst, &w, sizeof(w));
+ } else {
+ uint8_t *p = (uint8_t *)dst;
+ int i;
+
+ for (i = 0; i < 8; i++)
+ p[i] = (uint8_t)(w >> (8 * i));
+ }
}
-static inline uint32_t rotl32(const uint32_t w, const unsigned c)
+static ossl_inline uint64_t load48(const uint8_t *src)
{
- return (w << c) | (w >> (32 - c));
+ uint64_t w = ((uint64_t)src[0])
+ | ((uint64_t)src[1] << 8)
+ | ((uint64_t)src[2] << 16)
+ | ((uint64_t)src[3] << 24)
+ | ((uint64_t)src[4] << 32)
+ | ((uint64_t)src[5] << 40);
+ return w;
}
-static inline uint64_t rotl64(const uint64_t w, const unsigned c)
+static ossl_inline void store48(uint8_t *dst, uint64_t w)
{
- return (w << c) | (w >> (64 - c));
+ uint8_t *p = (uint8_t *)dst;
+ p[0] = (uint8_t)w;
+ p[1] = (uint8_t)(w>>8);
+ p[2] = (uint8_t)(w>>16);
+ p[3] = (uint8_t)(w>>24);
+ p[4] = (uint8_t)(w>>32);
+ p[5] = (uint8_t)(w>>40);
}
-static inline uint32_t rotr32(const uint32_t w, const unsigned c)
+static ossl_inline uint32_t rotr32(const uint32_t w, const unsigned int c)
{
return (w >> c) | (w << (32 - c));
}
-static inline uint64_t rotr64(const uint64_t w, const unsigned c)
+static ossl_inline uint64_t rotr64(const uint64_t w, const unsigned int c)
{
return (w >> c) | (w << (64 - c));
}
projects / openssl.git / blobdiff