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ossl.c
(6.93 KB)
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ossl.h
(1.91 KB)
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ossl_aarch64.c
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ossl_hash.h
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ossl_sha.h
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ossl_sha1.c
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ossl_sha256.c
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ossl_sha512.c
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ossl_x86.c
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Editing: ossl_hash.h
/* * Copyright 1999-2018 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the OpenSSL license (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 * * $FreeBSD$ */ /* * Derived from include/crypto/md32_common.h * * HASH_UPDATE and HASH_FINAL have been updated to work with the * auth_hash interface. */ #if defined(DATA_ORDER_IS_BIG_ENDIAN) # define HOST_c2l(c,l) (l =(((unsigned long)(*((c)++)))<<24), \ l|=(((unsigned long)(*((c)++)))<<16), \ l|=(((unsigned long)(*((c)++)))<< 8), \ l|=(((unsigned long)(*((c)++))) ) ) # define HOST_l2c(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \ *((c)++)=(unsigned char)(((l)>>16)&0xff), \ *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ *((c)++)=(unsigned char)(((l) )&0xff), \ l) #elif defined(DATA_ORDER_IS_LITTLE_ENDIAN) # define HOST_c2l(c,l) (l =(((unsigned long)(*((c)++))) ), \ l|=(((unsigned long)(*((c)++)))<< 8), \ l|=(((unsigned long)(*((c)++)))<<16), \ l|=(((unsigned long)(*((c)++)))<<24) ) # define HOST_l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ *((c)++)=(unsigned char)(((l)>>16)&0xff), \ *((c)++)=(unsigned char)(((l)>>24)&0xff), \ l) #endif /* * Time for some action :-) */ static int HASH_UPDATE(void *c_, const void *data_, unsigned int len) { HASH_CTX *c = c_; const unsigned char *data = data_; unsigned char *p; HASH_LONG l; size_t n; if (len == 0) return 0; l = (c->Nl + (((HASH_LONG) len) << 3)) & 0xffffffffUL; if (l < c->Nl) /* overflow */ c->Nh++; c->Nh += (HASH_LONG) (len >> 29); /* might cause compiler warning on * 16-bit */ c->Nl = l; n = c->num; if (n != 0) { p = (unsigned char *)c->data; if (len >= HASH_CBLOCK || len + n >= HASH_CBLOCK) { memcpy(p + n, data, HASH_CBLOCK - n); HASH_BLOCK_DATA_ORDER(c, p, 1); n = HASH_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. */ memset(p, 0, HASH_CBLOCK); /* keep it zeroed */ } else { memcpy(p + n, data, len); c->num += (unsigned int)len; return 0; } } n = len / HASH_CBLOCK; if (n > 0) { HASH_BLOCK_DATA_ORDER(c, data, n); n *= HASH_CBLOCK; data += n; len -= n; } if (len != 0) { p = (unsigned char *)c->data; c->num = (unsigned int)len; memcpy(p, data, len); } return 0; } static void HASH_FINAL(uint8_t *md, void *c_) { HASH_CTX *c = 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 > (HASH_CBLOCK - 8)) { memset(p + n, 0, HASH_CBLOCK - n); n = 0; HASH_BLOCK_DATA_ORDER(c, p, 1); } memset(p + n, 0, HASH_CBLOCK - 8 - n); p += HASH_CBLOCK - 8; #if defined(DATA_ORDER_IS_BIG_ENDIAN) (void)HOST_l2c(c->Nh, p); (void)HOST_l2c(c->Nl, p); #elif defined(DATA_ORDER_IS_LITTLE_ENDIAN) (void)HOST_l2c(c->Nl, p); (void)HOST_l2c(c->Nh, p); #endif p -= HASH_CBLOCK; HASH_BLOCK_DATA_ORDER(c, p, 1); c->num = 0; OPENSSL_cleanse(p, HASH_CBLOCK); #ifndef HASH_MAKE_STRING # error "HASH_MAKE_STRING must be defined!" #else HASH_MAKE_STRING(c, md); #endif return; }
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