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Merge aes and sha2 files

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This commit is contained in:
Zhi Guan
2026-06-26 22:56:57 +08:00
parent 28bc9d91db
commit e77378558c
6 changed files with 764 additions and 800 deletions
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6
CMakeLists.txt
View File

@@ -644,14 +644,14 @@ endif()
if (ENABLE_SHA2)
message(STATUS "ENABLE_SHA2 is ON")
add_definitions(-DENABLE_SHA2)
list(APPEND src src/sha256.c src/sha512.c)
list(APPEND src src/sha2.c)
list(APPEND tests sha224 sha256 sha384 sha512 hmac)
endif()
if (ENABLE_AES)
message(STATUS "ENABLE_AES is ON")
add_definitions(-DENABLE_AES)
list(APPEND src src/aes.c src/aes_modes.c)
list(APPEND src src/aes.c)
list(APPEND tests aes)
endif()
@@ -1025,7 +1025,7 @@ endif()
#
set(CPACK_PACKAGE_NAME "GmSSL")
set(CPACK_PACKAGE_VENDOR "GmSSL develop team")
set(CPACK_PACKAGE_VERSION "3.3.0-dev.1178")
set(CPACK_PACKAGE_VERSION "3.3.0-dev.1179")
set(CPACK_PACKAGE_DESCRIPTION_FILE ${PROJECT_SOURCE_DIR}/README.md)
set(CPACK_NSIS_MODIFY_PATH ON)
include(CPack)

2
include/gmssl/version.h
View File

@@ -18,7 +18,7 @@ extern "C" {
#define GMSSL_VERSION_NUM 30300
#define GMSSL_VERSION_STR "GmSSL 3.3.0-dev.1178"
#define GMSSL_VERSION_STR "GmSSL 3.3.0-dev.1179"
int gmssl_version_num(void);
const char *gmssl_version_str(void);

489
src/aes.c
View File

@@ -15,6 +15,8 @@
#include <gmssl/aes.h>
#include <gmssl/endian.h>
#include <gmssl/mem.h>
#include <gmssl/ghash.h>
#include <gmssl/error.h>
static const uint8_t S[256] = {
@@ -400,3 +402,490 @@ void aes_decrypt(const AES_KEY *aes_key, const uint8_t in[16], uint8_t out[16])
gmssl_secure_clear(state, sizeof(state));
}
void aes_cbc_encrypt_blocks(const AES_KEY *key, const uint8_t iv[16],
const uint8_t *in, size_t nblocks, uint8_t *out)
{
while (nblocks--) {
gmssl_memxor(out, in, iv, 16);
aes_encrypt(key, out, out);
iv = out;
in += 16;
out += 16;
}
}
void aes_cbc_decrypt_blocks(const AES_KEY *key, const uint8_t iv[16],
const uint8_t *in, size_t nblocks, uint8_t *out)
{
while (nblocks--) {
aes_decrypt(key, in, out);
memxor(out, iv, 16);
iv = in;
in += 16;
out += 16;
}
}
int aes_cbc_padding_encrypt(const AES_KEY *key, const uint8_t iv[16],
const uint8_t *in, size_t inlen,
uint8_t *out, size_t *outlen)
{
uint8_t block[16];
size_t rem = inlen % 16;
int padding = 16 - inlen % 16;
if (in) {
memcpy(block, in + inlen - rem, rem);
}
memset(block + rem, padding, padding);
if (inlen/16) {
aes_cbc_encrypt_blocks(key, iv, in, inlen/16, out);
out += inlen - rem;
iv = out - 16;
}
aes_cbc_encrypt_blocks(key, iv, block, 1, out);
*outlen = inlen - rem + 16;
return 1;
}
int aes_cbc_padding_decrypt(const AES_KEY *key, const uint8_t iv[16],
const uint8_t *in, size_t inlen,
uint8_t *out, size_t *outlen)
{
uint8_t block[16];
size_t len = sizeof(block);
int padding;
int i;
if (inlen == 0) {
error_print();
return 0;
}
if (inlen%16 != 0 || inlen < 16) {
error_print();
return -1;
}
if (inlen > 16) {
aes_cbc_decrypt_blocks(key, iv, in, inlen/16 - 1, out);
iv = in + inlen - 32;
}
aes_cbc_decrypt_blocks(key, iv, in + inlen - 16, 1, block);
padding = block[15];
if (padding < 1 || padding > 16) {
error_print();
return -1;
}
for (i = 16 - padding; i < 16; i++) {
if (block[i] != padding) {
error_print();
return -1;
}
}
len -= padding;
memcpy(out + inlen - 16, block, len);
*outlen = inlen - padding;
return 1;
}
static void ctr128_incr(uint8_t a[16])
{
int i;
for (i = 15; i >= 0; i--) {
a[i]++;
if (a[i]) break;
}
}
void aes_ctr_encrypt(const AES_KEY *key, uint8_t ctr[16], const uint8_t *in, size_t inlen, uint8_t *out)
{
uint8_t block[16];
size_t len;
while (inlen) {
len = inlen < 16 ? inlen : 16;
aes_encrypt(key, ctr, block);
gmssl_memxor(out, in, block, len);
ctr128_incr(ctr);
in += len;
out += len;
inlen -= len;
}
}
static void ctr32_incr(uint8_t a[16])
{
int i;
for (i = 15; i >= 12; i--) {
a[i]++;
if (a[i]) break;
}
}
static void aes_ctr32_encrypt(const AES_KEY *key, uint8_t ctr[16], const uint8_t *in, size_t inlen, uint8_t *out)
{
uint8_t block[16];
size_t len;
while (inlen) {
len = inlen < 16 ? inlen : 16;
aes_encrypt(key, ctr, block);
gmssl_memxor(out, in, block, len);
ctr32_incr(ctr);
in += len;
out += len;
inlen -= len;
}
gmssl_secure_clear(block, sizeof(block));
}
int aes_gcm_encrypt(const AES_KEY *key, const uint8_t *iv, size_t ivlen,
const uint8_t *aad, size_t aadlen, const uint8_t *in, size_t inlen,
uint8_t *out, size_t taglen, uint8_t *tag)
{
const uint8_t *pin = in;
uint8_t *pout = out;
size_t left = inlen;
uint8_t H[16] = {0};
uint8_t Y[16];
uint8_t T[16];
if (taglen > AES_GCM_MAX_TAG_SIZE) {
error_print();
return -1;
}
aes_encrypt(key, H, H);
if (ivlen == 12) {
memcpy(Y, iv, 12);
Y[12] = Y[13] = Y[14] = 0;
Y[15] = 1;
} else {
ghash(H, NULL, 0, iv, ivlen, Y);
}
aes_encrypt(key, Y, T);
ctr32_incr(Y);
aes_ctr32_encrypt(key, Y, in, inlen, out);
ghash(H, aad, aadlen, out, inlen, H);
gmssl_memxor(tag, T, H, taglen);
gmssl_secure_clear(H, sizeof(H));
gmssl_secure_clear(Y, sizeof(Y));
gmssl_secure_clear(T, sizeof(T));
return 1;
}
int aes_gcm_decrypt(const AES_KEY *key, const uint8_t *iv, size_t ivlen,
const uint8_t *aad, size_t aadlen, const uint8_t *in, size_t inlen,
const uint8_t *tag, size_t taglen, uint8_t *out)
{
const uint8_t *pin = in;
uint8_t *pout = out;
size_t left = inlen;
uint8_t H[16] = {0};
uint8_t Y[16];
uint8_t T[16];
if (taglen > AES_GCM_MAX_TAG_SIZE) {
error_print();
return -1;
}
aes_encrypt(key, H, H);
if (ivlen == 12) {
memcpy(Y, iv, 12);
Y[12] = Y[13] = Y[14] = 0;
Y[15] = 1;
} else {
ghash(H, NULL, 0, iv, ivlen, Y);
}
ghash(H, aad, aadlen, in, inlen, H);
aes_encrypt(key, Y, T);
gmssl_memxor(T, T, H, taglen);
if (gmssl_secure_memcmp(T, tag, taglen) != 0) {
gmssl_secure_clear(H, sizeof(H));
gmssl_secure_clear(Y, sizeof(Y));
gmssl_secure_clear(T, sizeof(T));
error_print();
return -1;
}
ctr32_incr(Y);
aes_ctr32_encrypt(key, Y, in, inlen, out);
gmssl_secure_clear(H, sizeof(H));
gmssl_secure_clear(Y, sizeof(Y));
gmssl_secure_clear(T, sizeof(T));
return 1;
}
#ifdef ENABLE_AES_CCM
static void length_to_bytes(size_t len, size_t nbytes, uint8_t *out)
{
uint8_t *p = out + nbytes - 1;
while (nbytes--) {
*p-- = len & 0xff;
len >>= 8;
}
}
static void ctr_n_incr(uint8_t a[16], size_t n)
{
size_t i;
for (i = 15; i >= 16 - n; i--) {
a[i]++;
if (a[i]) break;
}
}
static void aes_ctr_n_encrypt(const AES_KEY *key, uint8_t ctr[16], size_t n, const uint8_t *in, size_t inlen, uint8_t *out)
{
uint8_t block[16];
size_t len;
while (inlen) {
len = inlen < 16 ? inlen : 16;
aes_encrypt(key, ctr, block);
gmssl_memxor(out, in, block, len);
ctr_n_incr(ctr, n);
in += len;
out += len;
inlen -= len;
}
}
typedef struct {
AES_KEY key;
uint8_t iv[16];
size_t ivlen;
} AES_CBC_MAC_CTX;
static int aes_cbc_mac_update(AES_CBC_MAC_CTX *ctx, const uint8_t *data, size_t datalen)
{
if (!ctx || (!data && datalen)) {
error_print();
return -1;
}
if (ctx->ivlen >= 16) {
error_print();
return -1;
}
if (!data || !datalen) {
return 1;
}
while (datalen) {
size_t ivleft = 16 - ctx->ivlen;
size_t len = datalen < ivleft ? datalen : ivleft;
gmssl_memxor(ctx->iv + ctx->ivlen, ctx->iv + ctx->ivlen, data, len);
ctx->ivlen += len;
if (ctx->ivlen >= 16) {
aes_encrypt(&ctx->key, ctx->iv, ctx->iv);
ctx->ivlen = 0;
}
data += len;
datalen -= len;
}
return 1;
}
static int aes_cbc_mac_finish(AES_CBC_MAC_CTX *ctx, uint8_t mac[16])
{
if (!ctx || !mac) {
error_print();
return -1;
}
if (ctx->ivlen >= 16) {
error_print();
return -1;
}
if (ctx->ivlen) {
aes_encrypt(&ctx->key, ctx->iv, ctx->iv);
ctx->ivlen = 0;
}
memcpy(mac, ctx->iv, 16);
return 1;
}
int aes_ccm_encrypt(const AES_KEY *key, const uint8_t *iv, size_t ivlen,
const uint8_t *aad, size_t aadlen, const uint8_t *in, size_t inlen,
uint8_t *out, size_t taglen, uint8_t *tag)
{
AES_CBC_MAC_CTX mac_ctx;
const uint8_t zeros[16] = {0};
uint8_t block[16] = {0};
uint8_t ctr[16] = {0};
uint8_t mac[16];
size_t inlen_size;
if (!key || !iv || (!aad && aadlen) || (!in && inlen) || !out || !tag) {
error_print();
return -1;
}
if (ivlen < 7 || ivlen > 13) {
error_print();
return -1;
}
if (taglen < 4 || taglen > 16 || taglen & 1) {
error_print();
return -1;
}
inlen_size = 15 - ivlen;
// WARNING: (size_t)1 << n or (int)1 << n overflows on some systems when n == 32.
if (inlen_size < 8 && (uint64_t)inlen >= ((uint64_t)1 << (inlen_size * 8))) {
error_print();
return -1;
}
memset(&mac_ctx, 0, sizeof(mac_ctx));
mac_ctx.key = *key;
block[0] |= ((aadlen > 0) & 0x1) << 6;
block[0] |= (((taglen - 2)/2) & 0x7) << 3;
block[0] |= (inlen_size - 1) & 0x7;
memcpy(block + 1, iv, ivlen);
length_to_bytes(inlen, inlen_size, block + 1 + ivlen);
aes_cbc_mac_update(&mac_ctx, block, 16);
if (aad && aadlen) {
size_t alen;
if (aadlen < ((1<<16) - (1<<8))) {
length_to_bytes(aadlen, 2, block);
alen = 2;
} else if ((uint64_t)aadlen < ((uint64_t)1<<32)) {
block[0] = 0xff;
block[1] = 0xfe;
length_to_bytes(aadlen, 4, block + 2);
alen = 6;
} else {
block[0] = 0xff;
block[1] = 0xff;
length_to_bytes(aadlen, 8, block + 2);
alen = 10;
}
aes_cbc_mac_update(&mac_ctx, block, alen);
aes_cbc_mac_update(&mac_ctx, aad, aadlen);
if ((alen + aadlen) % 16) {
aes_cbc_mac_update(&mac_ctx, zeros, 16 - (alen + aadlen)%16);
}
}
ctr[0] = 0;
ctr[0] |= (inlen_size - 1) & 0x7;
memcpy(ctr + 1, iv, ivlen);
memset(ctr + 1 + ivlen, 0, 15 - ivlen);
aes_encrypt(key, ctr, block);
ctr[15] = 1;
aes_ctr_n_encrypt(key, ctr, 15 - ivlen, in, inlen, out);
aes_cbc_mac_update(&mac_ctx, in, inlen);
if (inlen % 16) {
aes_cbc_mac_update(&mac_ctx, zeros, 16 - inlen % 16);
}
aes_cbc_mac_finish(&mac_ctx, mac);
gmssl_memxor(tag, mac, block, taglen);
gmssl_secure_clear(&mac_ctx, sizeof(mac_ctx));
return 1;
}
int aes_ccm_decrypt(const AES_KEY *key, const uint8_t *iv, size_t ivlen,
const uint8_t *aad, size_t aadlen, const uint8_t *in, size_t inlen,
const uint8_t *tag, size_t taglen, uint8_t *out)
{
AES_CBC_MAC_CTX mac_ctx;
const uint8_t zeros[16] = {0};
uint8_t block[16] = {0};
uint8_t ctr[16] = {0};
uint8_t mac[16];
size_t inlen_size;
if (!key || !iv || (!aad && aadlen) || (!in && inlen) || !tag || !out) {
error_print();
return -1;
}
if (ivlen < 7 || ivlen > 13) {
error_print();
return -1;
}
if (taglen < 4 || taglen > 16 || taglen & 1) {
error_print();
return -1;
}
inlen_size = 15 - ivlen;
// WARNING: (size_t)1 << n or (int)1 << n overflows on some systems when n == 32.
if (inlen_size < 8 && (uint64_t)inlen >= ((uint64_t)1 << (inlen_size * 8))) {
error_print();
return -1;
}
memset(&mac_ctx, 0, sizeof(mac_ctx));
mac_ctx.key = *key;
block[0] |= ((aadlen > 0) & 0x1) << 6;
block[0] |= (((taglen - 2)/2) & 0x7) << 3;
block[0] |= (inlen_size - 1) & 0x7;
memcpy(block + 1, iv, ivlen);
length_to_bytes(inlen, inlen_size, block + 1 + ivlen);
aes_cbc_mac_update(&mac_ctx, block, 16);
if (aad && aadlen) {
size_t alen;
if (aadlen < ((1<<16) - (1<<8))) {
length_to_bytes(aadlen, 2, block);
alen = 2;
} else if ((uint64_t)aadlen < ((uint64_t)1<<32)) {
block[0] = 0xff;
block[1] = 0xfe;
length_to_bytes(aadlen, 4, block + 2);
alen = 6;
} else {
block[0] = 0xff;
block[1] = 0xff;
length_to_bytes(aadlen, 8, block + 2);
alen = 10;
}
aes_cbc_mac_update(&mac_ctx, block, alen);
aes_cbc_mac_update(&mac_ctx, aad, aadlen);
if ((alen + aadlen) % 16) {
aes_cbc_mac_update(&mac_ctx, zeros, 16 - (alen + aadlen)%16);
}
}
ctr[0] = 0;
ctr[0] |= (inlen_size - 1) & 0x7;
memcpy(ctr + 1, iv, ivlen);
memset(ctr + 1 + ivlen, 0, 15 - ivlen);
aes_encrypt(key, ctr, block);
ctr[15] = 1;
aes_ctr_n_encrypt(key, ctr, 15 - ivlen, in, inlen, out);
aes_cbc_mac_update(&mac_ctx, out, inlen);
if (inlen % 16) {
aes_cbc_mac_update(&mac_ctx, zeros, 16 - inlen % 16);
}
aes_cbc_mac_finish(&mac_ctx, mac);
gmssl_memxor(mac, mac, block, taglen);
if (gmssl_secure_memcmp(mac, tag, taglen) != 0) {
error_print();
gmssl_secure_clear(&mac_ctx, sizeof(mac_ctx));
return -1;
}
gmssl_secure_clear(&mac_ctx, sizeof(mac_ctx));
return 1;
}
#endif

505
src/aes_modes.c
View File

@@ -1,505 +0,0 @@
/*
* Copyright 2014-2026 The GmSSL Project. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
*
* http://www.apache.org/licenses/LICENSE-2.0
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <gmssl/aes.h>
#include <gmssl/mem.h>
#include <gmssl/ghash.h>
#include <gmssl/error.h>
void aes_cbc_encrypt_blocks(const AES_KEY *key, const uint8_t iv[16],
const uint8_t *in, size_t nblocks, uint8_t *out)
{
while (nblocks--) {
gmssl_memxor(out, in, iv, 16);
aes_encrypt(key, out, out);
iv = out;
in += 16;
out += 16;
}
}
void aes_cbc_decrypt_blocks(const AES_KEY *key, const uint8_t iv[16],
const uint8_t *in, size_t nblocks, uint8_t *out)
{
while (nblocks--) {
aes_decrypt(key, in, out);
memxor(out, iv, 16);
iv = in;
in += 16;
out += 16;
}
}
int aes_cbc_padding_encrypt(const AES_KEY *key, const uint8_t iv[16],
const uint8_t *in, size_t inlen,
uint8_t *out, size_t *outlen)
{
uint8_t block[16];
size_t rem = inlen % 16;
int padding = 16 - inlen % 16;
if (in) {
memcpy(block, in + inlen - rem, rem);
}
memset(block + rem, padding, padding);
if (inlen/16) {
aes_cbc_encrypt_blocks(key, iv, in, inlen/16, out);
out += inlen - rem;
iv = out - 16;
}
aes_cbc_encrypt_blocks(key, iv, block, 1, out);
*outlen = inlen - rem + 16;
return 1;
}
int aes_cbc_padding_decrypt(const AES_KEY *key, const uint8_t iv[16],
const uint8_t *in, size_t inlen,
uint8_t *out, size_t *outlen)
{
uint8_t block[16];
size_t len = sizeof(block);
int padding;
int i;
if (inlen == 0) {
error_print();
return 0;
}
if (inlen%16 != 0 || inlen < 16) {
error_print();
return -1;
}
if (inlen > 16) {
aes_cbc_decrypt_blocks(key, iv, in, inlen/16 - 1, out);
iv = in + inlen - 32;
}
aes_cbc_decrypt_blocks(key, iv, in + inlen - 16, 1, block);
padding = block[15];
if (padding < 1 || padding > 16) {
error_print();
return -1;
}
for (i = 16 - padding; i < 16; i++) {
if (block[i] != padding) {
error_print();
return -1;
}
}
len -= padding;
memcpy(out + inlen - 16, block, len);
*outlen = inlen - padding;
return 1;
}
static void ctr128_incr(uint8_t a[16])
{
int i;
for (i = 15; i >= 0; i--) {
a[i]++;
if (a[i]) break;
}
}
void aes_ctr_encrypt(const AES_KEY *key, uint8_t ctr[16], const uint8_t *in, size_t inlen, uint8_t *out)
{
uint8_t block[16];
size_t len;
while (inlen) {
len = inlen < 16 ? inlen : 16;
aes_encrypt(key, ctr, block);
gmssl_memxor(out, in, block, len);
ctr128_incr(ctr);
in += len;
out += len;
inlen -= len;
}
}
static void ctr32_incr(uint8_t a[16])
{
int i;
for (i = 15; i >= 12; i--) {
a[i]++;
if (a[i]) break;
}
}
static void aes_ctr32_encrypt(const AES_KEY *key, uint8_t ctr[16], const uint8_t *in, size_t inlen, uint8_t *out)
{
uint8_t block[16];
size_t len;
while (inlen) {
len = inlen < 16 ? inlen : 16;
aes_encrypt(key, ctr, block);
gmssl_memxor(out, in, block, len);
ctr32_incr(ctr);
in += len;
out += len;
inlen -= len;
}
gmssl_secure_clear(block, sizeof(block));
}
int aes_gcm_encrypt(const AES_KEY *key, const uint8_t *iv, size_t ivlen,
const uint8_t *aad, size_t aadlen, const uint8_t *in, size_t inlen,
uint8_t *out, size_t taglen, uint8_t *tag)
{
const uint8_t *pin = in;
uint8_t *pout = out;
size_t left = inlen;
uint8_t H[16] = {0};
uint8_t Y[16];
uint8_t T[16];
if (taglen > AES_GCM_MAX_TAG_SIZE) {
error_print();
return -1;
}
aes_encrypt(key, H, H);
if (ivlen == 12) {
memcpy(Y, iv, 12);
Y[12] = Y[13] = Y[14] = 0;
Y[15] = 1;
} else {
ghash(H, NULL, 0, iv, ivlen, Y);
}
aes_encrypt(key, Y, T);
ctr32_incr(Y);
aes_ctr32_encrypt(key, Y, in, inlen, out);
ghash(H, aad, aadlen, out, inlen, H);
gmssl_memxor(tag, T, H, taglen);
gmssl_secure_clear(H, sizeof(H));
gmssl_secure_clear(Y, sizeof(Y));
gmssl_secure_clear(T, sizeof(T));
return 1;
}
int aes_gcm_decrypt(const AES_KEY *key, const uint8_t *iv, size_t ivlen,
const uint8_t *aad, size_t aadlen, const uint8_t *in, size_t inlen,
const uint8_t *tag, size_t taglen, uint8_t *out)
{
const uint8_t *pin = in;
uint8_t *pout = out;
size_t left = inlen;
uint8_t H[16] = {0};
uint8_t Y[16];
uint8_t T[16];
if (taglen > AES_GCM_MAX_TAG_SIZE) {
error_print();
return -1;
}
aes_encrypt(key, H, H);
if (ivlen == 12) {
memcpy(Y, iv, 12);
Y[12] = Y[13] = Y[14] = 0;
Y[15] = 1;
} else {
ghash(H, NULL, 0, iv, ivlen, Y);
}
ghash(H, aad, aadlen, in, inlen, H);
aes_encrypt(key, Y, T);
gmssl_memxor(T, T, H, taglen);
if (gmssl_secure_memcmp(T, tag, taglen) != 0) {
gmssl_secure_clear(H, sizeof(H));
gmssl_secure_clear(Y, sizeof(Y));
gmssl_secure_clear(T, sizeof(T));
error_print();
return -1;
}
ctr32_incr(Y);
aes_ctr32_encrypt(key, Y, in, inlen, out);
gmssl_secure_clear(H, sizeof(H));
gmssl_secure_clear(Y, sizeof(Y));
gmssl_secure_clear(T, sizeof(T));
return 1;
}
#ifdef ENABLE_AES_CCM
static void length_to_bytes(size_t len, size_t nbytes, uint8_t *out)
{
uint8_t *p = out + nbytes - 1;
while (nbytes--) {
*p-- = len & 0xff;
len >>= 8;
}
}
static void ctr_n_incr(uint8_t a[16], size_t n)
{
size_t i;
for (i = 15; i >= 16 - n; i--) {
a[i]++;
if (a[i]) break;
}
}
static void aes_ctr_n_encrypt(const AES_KEY *key, uint8_t ctr[16], size_t n, const uint8_t *in, size_t inlen, uint8_t *out)
{
uint8_t block[16];
size_t len;
while (inlen) {
len = inlen < 16 ? inlen : 16;
aes_encrypt(key, ctr, block);
gmssl_memxor(out, in, block, len);
ctr_n_incr(ctr, n);
in += len;
out += len;
inlen -= len;
}
}
typedef struct {
AES_KEY key;
uint8_t iv[16];
size_t ivlen;
} AES_CBC_MAC_CTX;
static int aes_cbc_mac_update(AES_CBC_MAC_CTX *ctx, const uint8_t *data, size_t datalen)
{
if (!ctx || (!data && datalen)) {
error_print();
return -1;
}
if (ctx->ivlen >= 16) {
error_print();
return -1;
}
if (!data || !datalen) {
return 1;
}
while (datalen) {
size_t ivleft = 16 - ctx->ivlen;
size_t len = datalen < ivleft ? datalen : ivleft;
gmssl_memxor(ctx->iv + ctx->ivlen, ctx->iv + ctx->ivlen, data, len);
ctx->ivlen += len;
if (ctx->ivlen >= 16) {
aes_encrypt(&ctx->key, ctx->iv, ctx->iv);
ctx->ivlen = 0;
}
data += len;
datalen -= len;
}
return 1;
}
static int aes_cbc_mac_finish(AES_CBC_MAC_CTX *ctx, uint8_t mac[16])
{
if (!ctx || !mac) {
error_print();
return -1;
}
if (ctx->ivlen >= 16) {
error_print();
return -1;
}
if (ctx->ivlen) {
aes_encrypt(&ctx->key, ctx->iv, ctx->iv);
ctx->ivlen = 0;
}
memcpy(mac, ctx->iv, 16);
return 1;
}
int aes_ccm_encrypt(const AES_KEY *key, const uint8_t *iv, size_t ivlen,
const uint8_t *aad, size_t aadlen, const uint8_t *in, size_t inlen,
uint8_t *out, size_t taglen, uint8_t *tag)
{
AES_CBC_MAC_CTX mac_ctx;
const uint8_t zeros[16] = {0};
uint8_t block[16] = {0};
uint8_t ctr[16] = {0};
uint8_t mac[16];
size_t inlen_size;
if (!key || !iv || (!aad && aadlen) || (!in && inlen) || !out || !tag) {
error_print();
return -1;
}
if (ivlen < 7 || ivlen > 13) {
error_print();
return -1;
}
if (taglen < 4 || taglen > 16 || taglen & 1) {
error_print();
return -1;
}
inlen_size = 15 - ivlen;
// WARNING: (size_t)1 << n or (int)1 << n overflows on some systems when n == 32.
if (inlen_size < 8 && (uint64_t)inlen >= ((uint64_t)1 << (inlen_size * 8))) {
error_print();
return -1;
}
memset(&mac_ctx, 0, sizeof(mac_ctx));
mac_ctx.key = *key;
block[0] |= ((aadlen > 0) & 0x1) << 6;
block[0] |= (((taglen - 2)/2) & 0x7) << 3;
block[0] |= (inlen_size - 1) & 0x7;
memcpy(block + 1, iv, ivlen);
length_to_bytes(inlen, inlen_size, block + 1 + ivlen);
aes_cbc_mac_update(&mac_ctx, block, 16);
if (aad && aadlen) {
size_t alen;
if (aadlen < ((1<<16) - (1<<8))) {
length_to_bytes(aadlen, 2, block);
alen = 2;
} else if ((uint64_t)aadlen < ((uint64_t)1<<32)) {
block[0] = 0xff;
block[1] = 0xfe;
length_to_bytes(aadlen, 4, block + 2);
alen = 6;
} else {
block[0] = 0xff;
block[1] = 0xff;
length_to_bytes(aadlen, 8, block + 2);
alen = 10;
}
aes_cbc_mac_update(&mac_ctx, block, alen);
aes_cbc_mac_update(&mac_ctx, aad, aadlen);
if ((alen + aadlen) % 16) {
aes_cbc_mac_update(&mac_ctx, zeros, 16 - (alen + aadlen)%16);
}
}
ctr[0] = 0;
ctr[0] |= (inlen_size - 1) & 0x7;
memcpy(ctr + 1, iv, ivlen);
memset(ctr + 1 + ivlen, 0, 15 - ivlen);
aes_encrypt(key, ctr, block);
ctr[15] = 1;
aes_ctr_n_encrypt(key, ctr, 15 - ivlen, in, inlen, out);
aes_cbc_mac_update(&mac_ctx, in, inlen);
if (inlen % 16) {
aes_cbc_mac_update(&mac_ctx, zeros, 16 - inlen % 16);
}
aes_cbc_mac_finish(&mac_ctx, mac);
gmssl_memxor(tag, mac, block, taglen);
gmssl_secure_clear(&mac_ctx, sizeof(mac_ctx));
return 1;
}
int aes_ccm_decrypt(const AES_KEY *key, const uint8_t *iv, size_t ivlen,
const uint8_t *aad, size_t aadlen, const uint8_t *in, size_t inlen,
const uint8_t *tag, size_t taglen, uint8_t *out)
{
AES_CBC_MAC_CTX mac_ctx;
const uint8_t zeros[16] = {0};
uint8_t block[16] = {0};
uint8_t ctr[16] = {0};
uint8_t mac[16];
size_t inlen_size;
if (!key || !iv || (!aad && aadlen) || (!in && inlen) || !tag || !out) {
error_print();
return -1;
}
if (ivlen < 7 || ivlen > 13) {
error_print();
return -1;
}
if (taglen < 4 || taglen > 16 || taglen & 1) {
error_print();
return -1;
}
inlen_size = 15 - ivlen;
// WARNING: (size_t)1 << n or (int)1 << n overflows on some systems when n == 32.
if (inlen_size < 8 && (uint64_t)inlen >= ((uint64_t)1 << (inlen_size * 8))) {
error_print();
return -1;
}
memset(&mac_ctx, 0, sizeof(mac_ctx));
mac_ctx.key = *key;
block[0] |= ((aadlen > 0) & 0x1) << 6;
block[0] |= (((taglen - 2)/2) & 0x7) << 3;
block[0] |= (inlen_size - 1) & 0x7;
memcpy(block + 1, iv, ivlen);
length_to_bytes(inlen, inlen_size, block + 1 + ivlen);
aes_cbc_mac_update(&mac_ctx, block, 16);
if (aad && aadlen) {
size_t alen;
if (aadlen < ((1<<16) - (1<<8))) {
length_to_bytes(aadlen, 2, block);
alen = 2;
} else if ((uint64_t)aadlen < ((uint64_t)1<<32)) {
block[0] = 0xff;
block[1] = 0xfe;
length_to_bytes(aadlen, 4, block + 2);
alen = 6;
} else {
block[0] = 0xff;
block[1] = 0xff;
length_to_bytes(aadlen, 8, block + 2);
alen = 10;
}
aes_cbc_mac_update(&mac_ctx, block, alen);
aes_cbc_mac_update(&mac_ctx, aad, aadlen);
if ((alen + aadlen) % 16) {
aes_cbc_mac_update(&mac_ctx, zeros, 16 - (alen + aadlen)%16);
}
}
ctr[0] = 0;
ctr[0] |= (inlen_size - 1) & 0x7;
memcpy(ctr + 1, iv, ivlen);
memset(ctr + 1 + ivlen, 0, 15 - ivlen);
aes_encrypt(key, ctr, block);
ctr[15] = 1;
aes_ctr_n_encrypt(key, ctr, 15 - ivlen, in, inlen, out);
aes_cbc_mac_update(&mac_ctx, out, inlen);
if (inlen % 16) {
aes_cbc_mac_update(&mac_ctx, zeros, 16 - inlen % 16);
}
aes_cbc_mac_finish(&mac_ctx, mac);
gmssl_memxor(mac, mac, block, taglen);
if (gmssl_secure_memcmp(mac, tag, taglen) != 0) {
error_print();
gmssl_secure_clear(&mac_ctx, sizeof(mac_ctx));
return -1;
}
gmssl_secure_clear(&mac_ctx, sizeof(mac_ctx));
return 1;
}
#endif

365
src/sha512.c → src/sha2.c
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2014-2023 The GmSSL Project. All Rights Reserved.
* Copyright 2014-2026 The GmSSL Project. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
@@ -8,15 +8,282 @@
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gmssl/sha2.h>
#include <gmssl/endian.h>
#define Ch(X, Y, Z) (((X) & (Y)) ^ ((~(X)) & (Z)))
#define Maj(X, Y, Z) (((X) & (Y)) ^ ((X) & (Z)) ^ ((Y) & (Z)))
#define Sigma0(X) (ROR32((X), 2) ^ ROR32((X), 13) ^ ROR32((X), 22))
#define Sigma1(X) (ROR32((X), 6) ^ ROR32((X), 11) ^ ROR32((X), 25))
#define sigma0(X) (ROR32((X), 7) ^ ROR32((X), 18) ^ ((X) >> 3))
#define sigma1(X) (ROR32((X), 17) ^ ROR32((X), 19) ^ ((X) >> 10))
static const uint32_t K[64] = {
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
};
static void sha256_compress_blocks(uint32_t state[8],
const unsigned char *data, size_t blocks)
{
uint32_t A;
uint32_t B;
uint32_t C;
uint32_t D;
uint32_t E;
uint32_t F;
uint32_t G;
uint32_t H;
uint32_t W[64];
uint32_t T1, T2;
int i;
while (blocks--) {
A = state[0];
B = state[1];
C = state[2];
D = state[3];
E = state[4];
F = state[5];
G = state[6];
H = state[7];
for (i = 0; i < 16; i++) {
W[i] = GETU32(data);
data += 4;
}
for (; i < 64; i++) {
W[i] = sigma1(W[i-2]) + W[i-7] + sigma0(W[i-15]) + W[i-16];
}
for (i = 0; i < 64; i++) {
T1 = H + Sigma1(E) + Ch(E, F, G) + K[i] + W[i];
T2 = Sigma0(A) + Maj(A, B, C);
H = G;
G = F;
F = E;
E = D + T1;
D = C;
C = B;
B = A;
A = T1 + T2;
}
state[0] += A;
state[1] += B;
state[2] += C;
state[3] += D;
state[4] += E;
state[5] += F;
state[6] += G;
state[7] += H;
}
}
void sha256_init(SHA256_CTX *ctx)
{
memset(ctx, 0, sizeof(*ctx));
ctx->state[0] = 0x6a09e667;
ctx->state[1] = 0xbb67ae85;
ctx->state[2] = 0x3c6ef372;
ctx->state[3] = 0xa54ff53a;
ctx->state[4] = 0x510e527f;
ctx->state[5] = 0x9b05688c;
ctx->state[6] = 0x1f83d9ab;
ctx->state[7] = 0x5be0cd19;
}
void sha256_update(SHA256_CTX *ctx, const unsigned char *data, size_t datalen)
{
size_t blocks;
ctx->num &= 0x3f;
if (ctx->num) {
size_t left = SHA256_BLOCK_SIZE - ctx->num;
if (datalen < left) {
memcpy(ctx->block + ctx->num, data, datalen);
ctx->num += datalen;
return;
} else {
memcpy(ctx->block + ctx->num, data, left);
sha256_compress_blocks(ctx->state, ctx->block, 1);
ctx->nblocks++;
data += left;
datalen -= left;
}
}
blocks = datalen / SHA256_BLOCK_SIZE;
if (blocks) {
sha256_compress_blocks(ctx->state, data, blocks);
ctx->nblocks += blocks;
data += SHA256_BLOCK_SIZE * blocks;
datalen -= SHA256_BLOCK_SIZE * blocks;
}
ctx->num = datalen;
if (datalen) {
memcpy(ctx->block, data, datalen);
}
}
void sha256_finish(SHA256_CTX *ctx, unsigned char dgst[SHA256_DIGEST_SIZE])
{
int i;
ctx->num &= 0x3f;
ctx->block[ctx->num] = 0x80;
if (ctx->num <= SHA256_BLOCK_SIZE - 9) {
memset(ctx->block + ctx->num + 1, 0, SHA256_BLOCK_SIZE - ctx->num - 9);
} else {
memset(ctx->block + ctx->num + 1, 0, SHA256_BLOCK_SIZE - ctx->num - 1);
sha256_compress_blocks(ctx->state, ctx->block, 1);
memset(ctx->block, 0, SHA256_BLOCK_SIZE - 8);
}
PUTU32(ctx->block + 56, ctx->nblocks >> 23);
PUTU32(ctx->block + 60, (ctx->nblocks << 9) + (ctx->num << 3));
sha256_compress_blocks(ctx->state, ctx->block, 1);
for (i = 0; i < 8; i++) {
PUTU32(dgst, ctx->state[i]);
dgst += sizeof(uint32_t);
}
}
void sha224_init(SHA224_CTX *ctx)
{
memset(ctx, 0, sizeof(*ctx));
ctx->state[0] = 0xc1059ed8;
ctx->state[1] = 0x367cd507;
ctx->state[2] = 0x3070dd17;
ctx->state[3] = 0xf70e5939;
ctx->state[4] = 0xffc00b31;
ctx->state[5] = 0x68581511;
ctx->state[6] = 0x64f98fa7;
ctx->state[7] = 0xbefa4fa4;
}
void sha224_update(SHA224_CTX *ctx, const unsigned char *data, size_t datalen)
{
sha256_update((SHA256_CTX *)ctx, data, datalen);
}
void sha224_finish(SHA224_CTX *ctx, unsigned char dgst[SHA224_DIGEST_SIZE])
{
uint8_t buf[SHA256_DIGEST_SIZE];
sha256_finish((SHA256_CTX *)ctx, buf);
memcpy(dgst, buf, SHA224_DIGEST_SIZE);
memset(buf, 0, sizeof(buf));
}
#define Ch512(X, Y, Z) (((X) & (Y)) ^ ((~(X)) & (Z)))
#define Maj512(X, Y, Z) (((X) & (Y)) ^ ((X) & (Z)) ^ ((Y) & (Z)))
#define Sigma512_0(X) (ROR64((X), 28) ^ ROR64((X), 34) ^ ROR64((X), 39))
#define Sigma512_1(X) (ROR64((X), 14) ^ ROR64((X), 18) ^ ROR64((X), 41))
#define sigma512_0(X) (ROR64((X), 1) ^ ROR64((X), 8) ^ ((X) >> 7))
#define sigma512_1(X) (ROR64((X), 19) ^ ROR64((X), 61) ^ ((X) >> 6))
static const uint64_t K512[80] = {
0x428a2f98d728ae22, 0x7137449123ef65cd, 0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc,
0x3956c25bf348b538, 0x59f111f1b605d019, 0x923f82a4af194f9b, 0xab1c5ed5da6d8118,
0xd807aa98a3030242, 0x12835b0145706fbe, 0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2,
0x72be5d74f27b896f, 0x80deb1fe3b1696b1, 0x9bdc06a725c71235, 0xc19bf174cf692694,
0xe49b69c19ef14ad2, 0xefbe4786384f25e3, 0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65,
0x2de92c6f592b0275, 0x4a7484aa6ea6e483, 0x5cb0a9dcbd41fbd4, 0x76f988da831153b5,
0x983e5152ee66dfab, 0xa831c66d2db43210, 0xb00327c898fb213f, 0xbf597fc7beef0ee4,
0xc6e00bf33da88fc2, 0xd5a79147930aa725, 0x06ca6351e003826f, 0x142929670a0e6e70,
0x27b70a8546d22ffc, 0x2e1b21385c26c926, 0x4d2c6dfc5ac42aed, 0x53380d139d95b3df,
0x650a73548baf63de, 0x766a0abb3c77b2a8, 0x81c2c92e47edaee6, 0x92722c851482353b,
0xa2bfe8a14cf10364, 0xa81a664bbc423001, 0xc24b8b70d0f89791, 0xc76c51a30654be30,
0xd192e819d6ef5218, 0xd69906245565a910, 0xf40e35855771202a, 0x106aa07032bbd1b8,
0x19a4c116b8d2d0c8, 0x1e376c085141ab53, 0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8,
0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb, 0x5b9cca4f7763e373, 0x682e6ff3d6b2b8a3,
0x748f82ee5defb2fc, 0x78a5636f43172f60, 0x84c87814a1f0ab72, 0x8cc702081a6439ec,
0x90befffa23631e28, 0xa4506cebde82bde9, 0xbef9a3f7b2c67915, 0xc67178f2e372532b,
0xca273eceea26619c, 0xd186b8c721c0c207, 0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178,
0x06f067aa72176fba, 0x0a637dc5a2c898a6, 0x113f9804bef90dae, 0x1b710b35131c471b,
0x28db77f523047d84, 0x32caab7b40c72493, 0x3c9ebe0a15c9bebc, 0x431d67c49c100d4c,
0x4cc5d4becb3e42b6, 0x597f299cfc657e2a, 0x5fcb6fab3ad6faec, 0x6c44198c4a475817,
};
static void sha512_compress_blocks(uint64_t state[8],
const unsigned char *data, size_t blocks);
const unsigned char *data, size_t blocks)
{
uint64_t A;
uint64_t B;
uint64_t C;
uint64_t D;
uint64_t E;
uint64_t F;
uint64_t G;
uint64_t H;
uint64_t W[80];
uint64_t T1, T2;
int i;
while (blocks--) {
A = state[0];
B = state[1];
C = state[2];
D = state[3];
E = state[4];
F = state[5];
G = state[6];
H = state[7];
for (i = 0; i < 16; i++) {
W[i] = GETU64(data);
data += sizeof(uint64_t);
}
for (; i < 80; i++) {
W[i] = sigma512_1(W[i-2]) + W[i-7] + sigma512_0(W[i-15]) + W[i-16];
}
for (i = 0; i < 80; i++) {
T1 = H + Sigma512_1(E) + Ch512(E, F, G) + K512[i] + W[i];
T2 = Sigma512_0(A) + Maj512(A, B, C);
H = G;
G = F;
F = E;
E = D + T1;
D = C;
C = B;
B = A;
A = T1 + T2;
}
state[0] += A;
state[1] += B;
state[2] += C;
state[3] += D;
state[4] += E;
state[5] += F;
state[6] += G;
state[7] += H;
}
}
void sha512_init(SHA512_CTX *ctx)
{
@@ -87,95 +354,6 @@ void sha512_finish(SHA512_CTX *ctx, unsigned char dgst[SHA512_DIGEST_SIZE])
}
}
#define Ch(X, Y, Z) (((X) & (Y)) ^ ((~(X)) & (Z)))
#define Maj(X, Y, Z) (((X) & (Y)) ^ ((X) & (Z)) ^ ((Y) & (Z)))
#define Sigma0(X) (ROR64((X), 28) ^ ROR64((X), 34) ^ ROR64((X), 39))
#define Sigma1(X) (ROR64((X), 14) ^ ROR64((X), 18) ^ ROR64((X), 41))
#define sigma0(X) (ROR64((X), 1) ^ ROR64((X), 8) ^ ((X) >> 7))
#define sigma1(X) (ROR64((X), 19) ^ ROR64((X), 61) ^ ((X) >> 6))
static const uint64_t K[80] = {
0x428a2f98d728ae22, 0x7137449123ef65cd, 0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc,
0x3956c25bf348b538, 0x59f111f1b605d019, 0x923f82a4af194f9b, 0xab1c5ed5da6d8118,
0xd807aa98a3030242, 0x12835b0145706fbe, 0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2,
0x72be5d74f27b896f, 0x80deb1fe3b1696b1, 0x9bdc06a725c71235, 0xc19bf174cf692694,
0xe49b69c19ef14ad2, 0xefbe4786384f25e3, 0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65,
0x2de92c6f592b0275, 0x4a7484aa6ea6e483, 0x5cb0a9dcbd41fbd4, 0x76f988da831153b5,
0x983e5152ee66dfab, 0xa831c66d2db43210, 0xb00327c898fb213f, 0xbf597fc7beef0ee4,
0xc6e00bf33da88fc2, 0xd5a79147930aa725, 0x06ca6351e003826f, 0x142929670a0e6e70,
0x27b70a8546d22ffc, 0x2e1b21385c26c926, 0x4d2c6dfc5ac42aed, 0x53380d139d95b3df,
0x650a73548baf63de, 0x766a0abb3c77b2a8, 0x81c2c92e47edaee6, 0x92722c851482353b,
0xa2bfe8a14cf10364, 0xa81a664bbc423001, 0xc24b8b70d0f89791, 0xc76c51a30654be30,
0xd192e819d6ef5218, 0xd69906245565a910, 0xf40e35855771202a, 0x106aa07032bbd1b8,
0x19a4c116b8d2d0c8, 0x1e376c085141ab53, 0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8,
0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb, 0x5b9cca4f7763e373, 0x682e6ff3d6b2b8a3,
0x748f82ee5defb2fc, 0x78a5636f43172f60, 0x84c87814a1f0ab72, 0x8cc702081a6439ec,
0x90befffa23631e28, 0xa4506cebde82bde9, 0xbef9a3f7b2c67915, 0xc67178f2e372532b,
0xca273eceea26619c, 0xd186b8c721c0c207, 0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178,
0x06f067aa72176fba, 0x0a637dc5a2c898a6, 0x113f9804bef90dae, 0x1b710b35131c471b,
0x28db77f523047d84, 0x32caab7b40c72493, 0x3c9ebe0a15c9bebc, 0x431d67c49c100d4c,
0x4cc5d4becb3e42b6, 0x597f299cfc657e2a, 0x5fcb6fab3ad6faec, 0x6c44198c4a475817,
};
static void sha512_compress_blocks(uint64_t state[8],
const unsigned char *data, size_t blocks)
{
uint64_t A;
uint64_t B;
uint64_t C;
uint64_t D;
uint64_t E;
uint64_t F;
uint64_t G;
uint64_t H;
uint64_t W[80];
uint64_t T1, T2;
int i;
while (blocks--) {
A = state[0];
B = state[1];
C = state[2];
D = state[3];
E = state[4];
F = state[5];
G = state[6];
H = state[7];
for (i = 0; i < 16; i++) {
W[i] = GETU64(data);
data += sizeof(uint64_t);
}
for (; i < 80; i++) {
W[i] = sigma1(W[i-2]) + W[i-7] + sigma0(W[i-15]) + W[i-16];
}
for (i = 0; i < 80; i++) {
T1 = H + Sigma1(E) + Ch(E, F, G) + K[i] + W[i];
T2 = Sigma0(A) + Maj(A, B, C);
H = G;
G = F;
F = E;
E = D + T1;
D = C;
C = B;
B = A;
A = T1 + T2;
}
state[0] += A;
state[1] += B;
state[2] += C;
state[3] += D;
state[4] += E;
state[5] += F;
state[6] += G;
state[7] += H;
}
}
void sha384_init(SHA384_CTX *ctx)
{
memset(ctx, 0, sizeof(*ctx));
@@ -244,4 +422,3 @@ void sha512_224_finish(SHA512_CTX *ctx, unsigned char dgst[SHA224_DIGEST_SIZE])
memcpy(dgst, buf, SHA224_DIGEST_SIZE);
memset(buf, 0, sizeof(buf));
}

197
src/sha256.c
View File

@@ -1,197 +0,0 @@
/*
* Copyright 2014-2023 The GmSSL Project. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
*
* http://www.apache.org/licenses/LICENSE-2.0
*/
#include <string.h>
#include <gmssl/sha2.h>
#include <gmssl/endian.h>
#define Ch(X, Y, Z) (((X) & (Y)) ^ ((~(X)) & (Z)))
#define Maj(X, Y, Z) (((X) & (Y)) ^ ((X) & (Z)) ^ ((Y) & (Z)))
#define Sigma0(X) (ROR32((X), 2) ^ ROR32((X), 13) ^ ROR32((X), 22))
#define Sigma1(X) (ROR32((X), 6) ^ ROR32((X), 11) ^ ROR32((X), 25))
#define sigma0(X) (ROR32((X), 7) ^ ROR32((X), 18) ^ ((X) >> 3))
#define sigma1(X) (ROR32((X), 17) ^ ROR32((X), 19) ^ ((X) >> 10))
static const uint32_t K[64] = {
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
};
static void sha256_compress_blocks(uint32_t state[8],
const unsigned char *data, size_t blocks)
{
uint32_t A;
uint32_t B;
uint32_t C;
uint32_t D;
uint32_t E;
uint32_t F;
uint32_t G;
uint32_t H;
uint32_t W[64];
uint32_t T1, T2;
int i;
while (blocks--) {
A = state[0];
B = state[1];
C = state[2];
D = state[3];
E = state[4];
F = state[5];
G = state[6];
H = state[7];
for (i = 0; i < 16; i++) {
W[i] = GETU32(data);
data += 4;
}
for (; i < 64; i++) {
W[i] = sigma1(W[i-2]) + W[i-7] + sigma0(W[i-15]) + W[i-16];
}
for (i = 0; i < 64; i++) {
T1 = H + Sigma1(E) + Ch(E, F, G) + K[i] + W[i];
T2 = Sigma0(A) + Maj(A, B, C);
H = G;
G = F;
F = E;
E = D + T1;
D = C;
C = B;
B = A;
A = T1 + T2;
}
state[0] += A;
state[1] += B;
state[2] += C;
state[3] += D;
state[4] += E;
state[5] += F;
state[6] += G;
state[7] += H;
}
}
void sha256_init(SHA256_CTX *ctx)
{
memset(ctx, 0, sizeof(*ctx));
ctx->state[0] = 0x6a09e667;
ctx->state[1] = 0xbb67ae85;
ctx->state[2] = 0x3c6ef372;
ctx->state[3] = 0xa54ff53a;
ctx->state[4] = 0x510e527f;
ctx->state[5] = 0x9b05688c;
ctx->state[6] = 0x1f83d9ab;
ctx->state[7] = 0x5be0cd19;
}
void sha256_update(SHA256_CTX *ctx, const unsigned char *data, size_t datalen)
{
size_t blocks;
ctx->num &= 0x3f;
if (ctx->num) {
size_t left = SHA256_BLOCK_SIZE - ctx->num;
if (datalen < left) {
memcpy(ctx->block + ctx->num, data, datalen);
ctx->num += datalen;
return;
} else {
memcpy(ctx->block + ctx->num, data, left);
sha256_compress_blocks(ctx->state, ctx->block, 1);
ctx->nblocks++;
data += left;
datalen -= left;
}
}
blocks = datalen / SHA256_BLOCK_SIZE;
if (blocks) {
sha256_compress_blocks(ctx->state, data, blocks);
ctx->nblocks += blocks;
data += SHA256_BLOCK_SIZE * blocks;
datalen -= SHA256_BLOCK_SIZE * blocks;
}
ctx->num = datalen;
if (datalen) {
memcpy(ctx->block, data, datalen);
}
}
void sha256_finish(SHA256_CTX *ctx, unsigned char dgst[SHA256_DIGEST_SIZE])
{
int i;
ctx->num &= 0x3f;
ctx->block[ctx->num] = 0x80;
if (ctx->num <= SHA256_BLOCK_SIZE - 9) {
memset(ctx->block + ctx->num + 1, 0, SHA256_BLOCK_SIZE - ctx->num - 9);
} else {
memset(ctx->block + ctx->num + 1, 0, SHA256_BLOCK_SIZE - ctx->num - 1);
sha256_compress_blocks(ctx->state, ctx->block, 1);
memset(ctx->block, 0, SHA256_BLOCK_SIZE - 8);
}
PUTU32(ctx->block + 56, ctx->nblocks >> 23);
PUTU32(ctx->block + 60, (ctx->nblocks << 9) + (ctx->num << 3));
sha256_compress_blocks(ctx->state, ctx->block, 1);
for (i = 0; i < 8; i++) {
PUTU32(dgst, ctx->state[i]);
dgst += sizeof(uint32_t);
}
}
void sha224_init(SHA224_CTX *ctx)
{
memset(ctx, 0, sizeof(*ctx));
ctx->state[0] = 0xc1059ed8;
ctx->state[1] = 0x367cd507;
ctx->state[2] = 0x3070dd17;
ctx->state[3] = 0xf70e5939;
ctx->state[4] = 0xffc00b31;
ctx->state[5] = 0x68581511;
ctx->state[6] = 0x64f98fa7;
ctx->state[7] = 0xbefa4fa4;
}
void sha224_update(SHA224_CTX *ctx, const unsigned char *data, size_t datalen)
{
sha256_update((SHA256_CTX *)ctx, data, datalen);
}
void sha224_finish(SHA224_CTX *ctx, unsigned char dgst[SHA224_DIGEST_SIZE])
{
uint8_t buf[SHA256_DIGEST_SIZE];
sha256_finish((SHA256_CTX *)ctx, buf);
memcpy(dgst, buf, SHA224_DIGEST_SIZE);
memset(buf, 0, sizeof(buf));
}