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/*
* Copyright (C) 2021 - This file is part of libecc project
*
* Authors:
* Ryad BENADJILA <ryadbenadjila@gmail.com>
* Arnaud EBALARD <arnaud.ebalard@ssi.gouv.fr>
*
* This software is licensed under a dual BSD and GPL v2 license.
* See LICENSE file at the root folder of the project.
*/
#include "hash.h"
/* Get a libecc hash type and mapping from a generic hash type */
ATTRIBUTE_WARN_UNUSED_RET static int get_libecc_hash(gen_hash_alg_type gen_hash_type, hash_alg_type *hash_type, const hash_mapping **hm, u8 *hlen, u8 *block_size)
{
int ret;
hash_alg_type htype = UNKNOWN_HASH_ALG;
MUST_HAVE((hash_type != NULL) && (hm != NULL), ret, err);
switch(gen_hash_type){
case HASH_SHA224:{
#ifdef WITH_HASH_SHA224
htype = SHA224;
#endif
break;
}
case HASH_SHA256:{
#ifdef WITH_HASH_SHA256
htype = SHA256;
#endif
break;
}
case HASH_SHA384:{
#ifdef WITH_HASH_SHA384
htype = SHA384;
#endif
break;
}
case HASH_SHA512:{
#ifdef WITH_HASH_SHA512
htype = SHA512;
#endif
break;
}
case HASH_SHA512_224:{
#ifdef WITH_HASH_SHA512_224
htype = SHA512_224;
#endif
break;
}
case HASH_SHA512_256:{
#ifdef WITH_HASH_SHA512_256
htype = SHA512_256;
#endif
break;
}
case HASH_SHA3_224:{
#ifdef WITH_HASH_SHA3_224
htype = SHA3_224;
#endif
break;
}
case HASH_SHA3_256:{
#ifdef WITH_HASH_SHA3_256
htype = SHA3_256;
#endif
break;
}
case HASH_SHA3_384:{
#ifdef WITH_HASH_SHA3_384
htype = SHA3_384;
#endif
break;
}
case HASH_SHA3_512:{
#ifdef WITH_HASH_SHA3_512
htype = SHA3_512;
#endif
break;
}
case HASH_SM3:{
#ifdef WITH_HASH_SM3
htype = SM3;
#endif
break;
}
case HASH_STREEBOG256:{
#ifdef WITH_HASH_STREEBOG256
htype = STREEBOG256;
#endif
break;
}
case HASH_STREEBOG512:{
#ifdef WITH_HASH_STREEBOG512
htype = STREEBOG512;
#endif
break;
}
case HASH_SHAKE256:{
#ifdef WITH_HASH_SHAKE256
htype = SHAKE256;
#endif
break;
}
case HASH_RIPEMD160:{
#ifdef WITH_HASH_RIPEMD160
htype = RIPEMD160;
#endif
break;
}
case HASH_BELT_HASH:{
#ifdef WITH_HASH_BELT_HASH
htype = BELT_HASH;
#endif
break;
}
case HASH_BASH224:{
#ifdef WITH_HASH_BASH224
htype = BASH224;
#endif
break;
}
case HASH_BASH256:{
#ifdef WITH_HASH_BASH256
htype = BASH256;
#endif
break;
}
case HASH_BASH384:{
#ifdef WITH_HASH_BASH384
htype = BASH384;
#endif
break;
}
case HASH_BASH512:{
#ifdef WITH_HASH_BASH512
htype = BASH512;
#endif
break;
}
default:{
htype = UNKNOWN_HASH_ALG;
break;
}
}
if(htype != UNKNOWN_HASH_ALG){
(*hash_type) = htype;
ret = get_hash_by_type(htype, hm); EG(ret, err);
ret = get_hash_sizes(htype, hlen, block_size); EG(ret, err);
MUST_HAVE(((*hlen) <= MAX_DIGEST_SIZE), ret, err);
ret = 0;
}
else{
ret = -1;
}
err:
if(ret && (hm != NULL)){
(*hm) = NULL;
}
if(ret && (hash_type != NULL)){
(*hash_type) = UNKNOWN_HASH_ALG;
}
return ret;
}
int gen_hash_get_hash_sizes(gen_hash_alg_type gen_hash_type, u8 *hlen, u8 *block_size)
{
int ret;
MUST_HAVE((hlen != NULL) && (block_size != NULL), ret, err);
switch(gen_hash_type){
case HASH_MD2:{
(*hlen) = MD2_DIGEST_SIZE;
(*block_size) = MD2_BLOCK_SIZE;
ret = 0;
break;
}
case HASH_MD4:{
(*hlen) = MD4_DIGEST_SIZE;
(*block_size) = MD4_BLOCK_SIZE;
ret = 0;
break;
}
case HASH_MD5:{
(*hlen) = MD5_DIGEST_SIZE;
(*block_size) = MD5_BLOCK_SIZE;
ret = 0;
break;
}
case HASH_SHA0:{
(*hlen) = SHA0_DIGEST_SIZE;
(*block_size) = SHA0_BLOCK_SIZE;
ret = 0;
break;
}
case HASH_SHA1:{
(*hlen) = SHA1_DIGEST_SIZE;
(*block_size) = SHA1_BLOCK_SIZE;
ret = 0;
break;
}
case HASH_MDC2_PADDING1:
case HASH_MDC2_PADDING2:{
(*hlen) = MDC2_DIGEST_SIZE;
(*block_size) = MDC2_BLOCK_SIZE;
ret = 0;
break;
}
case HASH_GOST34_11_94_NORM:
case HASH_GOST34_11_94_RFC4357:{
(*hlen) = GOSTR34_11_94_DIGEST_SIZE;
(*block_size) = GOSTR34_11_94_BLOCK_SIZE;
ret = 0;
break;
}
/* The default case falls back to a genuine libecc hash function */
default:{
const hash_mapping *hm;
hash_alg_type hash_type;
ret = get_libecc_hash(gen_hash_type, &hash_type, &hm, hlen, block_size); EG(ret, err);
break;
}
}
err:
return ret;
}
int gen_hash_hfunc_scattered(const u8 **input, const u32 *ilen, u8 *digest, gen_hash_alg_type gen_hash_type)
{
int ret;
switch(gen_hash_type){
case HASH_MD2:{
ret = md2_scattered(input, ilen, digest); EG(ret, err);
break;
}
case HASH_MD4:{
ret = md4_scattered(input, ilen, digest); EG(ret, err);
break;
}
case HASH_MD5:{
ret = md5_scattered(input, ilen, digest); EG(ret, err);
break;
}
case HASH_SHA0:{
ret = sha0_scattered(input, ilen, digest); EG(ret, err);
break;
}
case HASH_SHA1:{
ret = sha1_scattered(input, ilen, digest); EG(ret, err);
break;
}
case HASH_MDC2_PADDING1:{
ret = mdc2_scattered_padding1(input, ilen, digest); EG(ret, err);
break;
}
case HASH_MDC2_PADDING2:{
ret = mdc2_scattered_padding2(input, ilen, digest); EG(ret, err);
break;
}
case HASH_GOST34_11_94_NORM:{
ret = gostr34_11_94_scattered_norm(input, ilen, digest); EG(ret, err);
break;
}
case HASH_GOST34_11_94_RFC4357:{
ret = gostr34_11_94_scattered_rfc4357(input, ilen, digest); EG(ret, err);
break;
}
/* The fallback should be libecc type */
default:{
const hash_mapping *hm;
hash_alg_type hash_type;
u8 hlen, block_size;
ret = get_libecc_hash(gen_hash_type, &hash_type, &hm, &hlen, &block_size); EG(ret, err);
MUST_HAVE((hm != NULL), ret, err);
ret = hm->hfunc_scattered(input, ilen, digest); EG(ret, err);
break;
}
}
err:
return ret;
}
int gen_hash_hfunc(const u8 *input, u32 ilen, u8 *digest, gen_hash_alg_type gen_hash_type)
{
const u8 *inputs[2] = { input, NULL };
u32 ilens[2] = { ilen, 0 };
return gen_hash_hfunc_scattered(inputs, ilens, digest, gen_hash_type);
}
int gen_hash_init(gen_hash_context *ctx, gen_hash_alg_type gen_hash_type)
{
int ret;
MUST_HAVE((ctx != NULL), ret, err);
switch(gen_hash_type){
case HASH_MD2:{
ret = md2_init(&(ctx->md2ctx)); EG(ret, err);
break;
}
case HASH_MD4:{
ret = md4_init(&(ctx->md4ctx)); EG(ret, err);
break;
}
case HASH_MD5:{
ret = md5_init(&(ctx->md5ctx)); EG(ret, err);
break;
}
case HASH_SHA0:{
ret = sha0_init(&(ctx->sha0ctx)); EG(ret, err);
break;
}
case HASH_SHA1:{
ret = sha1_init(&(ctx->sha1ctx)); EG(ret, err);
break;
}
case HASH_MDC2_PADDING1:{
ret = mdc2_init(&(ctx->mdc2ctx)); EG(ret, err);
ret = mdc2_set_padding_type(&(ctx->mdc2ctx), ISOIEC10118_TYPE1); EG(ret, err);
break;
}
case HASH_MDC2_PADDING2:{
ret = mdc2_init(&(ctx->mdc2ctx)); EG(ret, err);
ret = mdc2_set_padding_type(&(ctx->mdc2ctx), ISOIEC10118_TYPE2); EG(ret, err);
break;
}
case HASH_GOST34_11_94_NORM:{
ret = gostr34_11_94_init(&(ctx->gostr34_11_94ctx)); EG(ret, err);
ret = gostr34_11_94_set_type(&(ctx->gostr34_11_94ctx), GOST34_11_94_NORM); EG(ret, err);
break;
}
case HASH_GOST34_11_94_RFC4357:{
ret = gostr34_11_94_init(&(ctx->gostr34_11_94ctx)); EG(ret, err);
ret = gostr34_11_94_set_type(&(ctx->gostr34_11_94ctx), GOST34_11_94_RFC4357); EG(ret, err);
break;
}
/* The fallback should be libecc type */
default:{
const hash_mapping *hm;
hash_alg_type hash_type;
u8 hlen, block_size;
ret = get_libecc_hash(gen_hash_type, &hash_type, &hm, &hlen, &block_size); EG(ret, err);
MUST_HAVE((hm != NULL), ret, err);
ret = hm->hfunc_init(&(ctx->hctx)); EG(ret, err);
break;
}
}
err:
return ret;
}
int gen_hash_update(gen_hash_context *ctx, const u8 *chunk, u32 chunklen, gen_hash_alg_type gen_hash_type)
{
int ret;
MUST_HAVE((ctx != NULL), ret, err);
switch(gen_hash_type){
case HASH_MD2:{
ret = md2_update(&(ctx->md2ctx), chunk, chunklen); EG(ret, err);
break;
}
case HASH_MD4:{
ret = md4_update(&(ctx->md4ctx), chunk, chunklen); EG(ret, err);
break;
}
case HASH_MD5:{
ret = md5_update(&(ctx->md5ctx), chunk, chunklen); EG(ret, err);
break;
}
case HASH_SHA0:{
ret = sha0_update(&(ctx->sha0ctx), chunk, chunklen); EG(ret, err);
break;
}
case HASH_SHA1:{
ret = sha1_update(&(ctx->sha1ctx), chunk, chunklen); EG(ret, err);
break;
}
case HASH_MDC2_PADDING1:
case HASH_MDC2_PADDING2:{
ret = mdc2_update(&(ctx->mdc2ctx), chunk, chunklen); EG(ret, err);
break;
}
case HASH_GOST34_11_94_NORM:
case HASH_GOST34_11_94_RFC4357:{
ret = gostr34_11_94_update(&(ctx->gostr34_11_94ctx), chunk, chunklen); EG(ret, err);
break;
}
/* The fallback should be libecc type */
default:{
const hash_mapping *hm;
hash_alg_type hash_type;
u8 hlen, block_size;
ret = get_libecc_hash(gen_hash_type, &hash_type, &hm, &hlen, &block_size); EG(ret, err);
MUST_HAVE((hm != NULL), ret, err);
ret = hm->hfunc_update(&(ctx->hctx), chunk, chunklen); EG(ret, err);
break;
}
}
err:
return ret;
}
int gen_hash_final(gen_hash_context *ctx, u8 *output, gen_hash_alg_type gen_hash_type)
{
int ret;
MUST_HAVE((ctx != NULL), ret, err);
switch(gen_hash_type){
case HASH_MD2:{
ret = md2_final(&(ctx->md2ctx), output); EG(ret, err);
break;
}
case HASH_MD4:{
ret = md4_final(&(ctx->md4ctx), output); EG(ret, err);
break;
}
case HASH_MD5:{
ret = md5_final(&(ctx->md5ctx), output); EG(ret, err);
break;
}
case HASH_SHA0:{
ret = sha0_final(&(ctx->sha0ctx), output); EG(ret, err);
break;
}
case HASH_SHA1:{
ret = sha1_final(&(ctx->sha1ctx), output); EG(ret, err);
break;
}
case HASH_MDC2_PADDING1:
case HASH_MDC2_PADDING2:{
ret = mdc2_final(&(ctx->mdc2ctx), output); EG(ret, err);
break;
}
case HASH_GOST34_11_94_NORM:
case HASH_GOST34_11_94_RFC4357:{
ret = gostr34_11_94_final(&(ctx->gostr34_11_94ctx), output); EG(ret, err);
break;
}
/* The fallback should be libecc type */
default:{
const hash_mapping *hm;
hash_alg_type hash_type;
u8 hlen, block_size;
ret = get_libecc_hash(gen_hash_type, &hash_type, &hm, &hlen, &block_size); EG(ret, err);
MUST_HAVE((hm != NULL), ret, err);
ret = hm->hfunc_finalize(&(ctx->hctx), output); EG(ret, err);
break;
}
}
err:
return ret;
}
#ifdef HASH
#include <libecc/utils/print_buf.h>
int main(int argc, char *argv[])
{
int ret = 0;
unsigned int i;
const u8 input[] = "Now is the time for all ";
const u8 input2[] = "\x54\x68\x69\x73\x20\x69\x73\x20\x6D\x65\x73\x73\x61\x67\x65\x2C\x20\x6C\x65\x6E\x67\x74\x68\x3D\x33\x32\x20\x62\x79\x74\x65\x73";
const u8 input3[] = "";
const u8 input4[] = "Suppose the original message has length = 50 bytes";
u8 input5[128];
u8 output[32];
FORCE_USED_VAR(argc);
FORCE_USED_VAR(argv);
ret = local_memset(input5, 0, sizeof(input5)); EG(ret, err);
ret = gen_hash_hfunc(input, sizeof(input)-1, output, HASH_MDC2_PADDING1); EG(ret, err);
buf_print("mdc2 padding1", output, 16);
ret = gen_hash_hfunc(input, sizeof(input)-1, output, HASH_MDC2_PADDING2); EG(ret, err);
buf_print("mdc2 padding2", output, 16);
ret = gen_hash_hfunc(input2, sizeof(input2)-1, output, HASH_GOST34_11_94_NORM); EG(ret, err);
buf_print("gostr34_11_94 NORM", output, 32);
ret = gen_hash_hfunc(input3, sizeof(input3)-1, output, HASH_GOST34_11_94_NORM); EG(ret, err);
buf_print("gostr34_11_94 NORM", output, 32);
ret = gen_hash_hfunc(input4, sizeof(input4)-1, output, HASH_GOST34_11_94_NORM); EG(ret, err);
buf_print("gostr34_11_94 NORM", output, 32);
for(i = 0; i < sizeof(input5); i++){
input5[i] = 'U';
}
ret = gen_hash_hfunc(input5, sizeof(input5), output, HASH_GOST34_11_94_NORM); EG(ret, err);
buf_print("gostr34_11_94 NORM", output, 32);
err:
return ret;
}
#endif
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