2 * Copyright 2012, Samuel Neves <sneves@dei.uc.pt>.
3 * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
5 * Licensed under the OpenSSL licenses, (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 * https://www.openssl.org/source/license.html
9 * or in the file LICENSE in the source distribution.
13 * Derived from the BLAKE2 reference implementation written by Samuel Neves.
14 * More information about the BLAKE2 hash function and its implementations
15 * can be found at https://blake2.net.
21 static ossl_inline uint32_t load32(const uint8_t *src)
28 if (is_endian.little) {
30 memcpy(&w, src, sizeof(w));
34 w |= (uint32_t)(*src++) << 8;
35 w |= (uint32_t)(*src++) << 16;
36 w |= (uint32_t)(*src++) << 24;
41 static ossl_inline uint64_t load64(const uint8_t *src)
48 if (is_endian.little) {
50 memcpy(&w, src, sizeof(w));
54 w |= (uint64_t)(*src++) << 8;
55 w |= (uint64_t)(*src++) << 16;
56 w |= (uint64_t)(*src++) << 24;
57 w |= (uint64_t)(*src++) << 32;
58 w |= (uint64_t)(*src++) << 40;
59 w |= (uint64_t)(*src++) << 48;
60 w |= (uint64_t)(*src++) << 56;
65 static ossl_inline void store32(uint8_t *dst, uint32_t w)
72 if (is_endian.little) {
73 memcpy(dst, &w, sizeof(w));
75 uint8_t *p = (uint8_t *)dst;
78 for (i = 0; i < 4; i++)
79 p[i] = (uint8_t)(w >> (8 * i));
83 static ossl_inline void store64(uint8_t *dst, uint64_t w)
90 if (is_endian.little) {
91 memcpy(dst, &w, sizeof(w));
93 uint8_t *p = (uint8_t *)dst;
96 for (i = 0; i < 8; i++)
97 p[i] = (uint8_t)(w >> (8 * i));
101 static ossl_inline uint64_t load48(const uint8_t *src)
104 w |= (uint64_t)(*src++) << 8;
105 w |= (uint64_t)(*src++) << 16;
106 w |= (uint64_t)(*src++) << 24;
107 w |= (uint64_t)(*src++) << 32;
108 w |= (uint64_t)(*src++) << 40;
112 static ossl_inline void store48(uint8_t *dst, uint64_t w)
114 uint8_t *p = (uint8_t *)dst;
128 static ossl_inline uint32_t rotr32(const uint32_t w, const unsigned int c)
130 return (w >> c) | (w << (32 - c));
133 static ossl_inline uint64_t rotr64(const uint64_t w, const unsigned int c)
135 return (w >> c) | (w << (64 - c));