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));
33 uint32_t w = ((uint32_t)src[0])
34 | ((uint32_t)src[1] << 8)
35 | ((uint32_t)src[2] << 16)
36 | ((uint32_t)src[3] << 24);
41 static ossl_inline uint64_t load64(const uint8_t *src)
48 if (is_endian.little) {
50 memcpy(&w, src, sizeof(w));
53 uint64_t w = ((uint64_t)src[0])
54 | ((uint64_t)src[1] << 8)
55 | ((uint64_t)src[2] << 16)
56 | ((uint64_t)src[3] << 24)
57 | ((uint64_t)src[4] << 32)
58 | ((uint64_t)src[5] << 40)
59 | ((uint64_t)src[6] << 48)
60 | ((uint64_t)src[7] << 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)
103 uint64_t w = ((uint64_t)src[0])
104 | ((uint64_t)src[1] << 8)
105 | ((uint64_t)src[2] << 16)
106 | ((uint64_t)src[3] << 24)
107 | ((uint64_t)src[4] << 32)
108 | ((uint64_t)src[5] << 40);
112 static ossl_inline void store48(uint8_t *dst, uint64_t w)
114 uint8_t *p = (uint8_t *)dst;
116 p[1] = (uint8_t)(w>>8);
117 p[2] = (uint8_t)(w>>16);
118 p[3] = (uint8_t)(w>>24);
119 p[4] = (uint8_t)(w>>32);
120 p[5] = (uint8_t)(w>>40);
123 static ossl_inline uint32_t rotr32(const uint32_t w, const unsigned int c)
125 return (w >> c) | (w << (32 - c));
128 static ossl_inline uint64_t rotr64(const uint64_t w, const unsigned int c)
130 return (w >> c) | (w << (64 - c));