2 * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 * Derived from the BLAKE2 reference implementation written by Samuel Neves.
12 * Copyright 2012, Samuel Neves <sneves@dei.uc.pt>
13 * More information about the BLAKE2 hash function and its implementations
14 * can be found at https://blake2.net.
20 static ossl_inline uint32_t load32(const uint8_t *src)
27 if (is_endian.little) {
29 memcpy(&w, src, sizeof(w));
32 uint32_t w = ((uint32_t)src[0])
33 | ((uint32_t)src[1] << 8)
34 | ((uint32_t)src[2] << 16)
35 | ((uint32_t)src[3] << 24);
40 static ossl_inline uint64_t load64(const uint8_t *src)
47 if (is_endian.little) {
49 memcpy(&w, src, sizeof(w));
52 uint64_t w = ((uint64_t)src[0])
53 | ((uint64_t)src[1] << 8)
54 | ((uint64_t)src[2] << 16)
55 | ((uint64_t)src[3] << 24)
56 | ((uint64_t)src[4] << 32)
57 | ((uint64_t)src[5] << 40)
58 | ((uint64_t)src[6] << 48)
59 | ((uint64_t)src[7] << 56);
64 static ossl_inline void store32(uint8_t *dst, uint32_t w)
71 if (is_endian.little) {
72 memcpy(dst, &w, sizeof(w));
74 uint8_t *p = (uint8_t *)dst;
77 for (i = 0; i < 4; i++)
78 p[i] = (uint8_t)(w >> (8 * i));
82 static ossl_inline void store64(uint8_t *dst, uint64_t w)
89 if (is_endian.little) {
90 memcpy(dst, &w, sizeof(w));
92 uint8_t *p = (uint8_t *)dst;
95 for (i = 0; i < 8; i++)
96 p[i] = (uint8_t)(w >> (8 * i));
100 static ossl_inline uint64_t load48(const uint8_t *src)
102 uint64_t w = ((uint64_t)src[0])
103 | ((uint64_t)src[1] << 8)
104 | ((uint64_t)src[2] << 16)
105 | ((uint64_t)src[3] << 24)
106 | ((uint64_t)src[4] << 32)
107 | ((uint64_t)src[5] << 40);
111 static ossl_inline void store48(uint8_t *dst, uint64_t w)
113 uint8_t *p = (uint8_t *)dst;
115 p[1] = (uint8_t)(w>>8);
116 p[2] = (uint8_t)(w>>16);
117 p[3] = (uint8_t)(w>>24);
118 p[4] = (uint8_t)(w>>32);
119 p[5] = (uint8_t)(w>>40);
122 static ossl_inline uint32_t rotr32(const uint32_t w, const unsigned int c)
124 return (w >> c) | (w << (32 - c));
127 static ossl_inline uint64_t rotr64(const uint64_t w, const unsigned int c)
129 return (w >> c) | (w << (64 - c));