mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
400 lines
10 KiB
C
400 lines
10 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: CC0-1.0
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include "soc/soc_caps.h"
|
|
|
|
#if SOC_SHA_SUPPORTED
|
|
|
|
#include "soc/periph_defs.h"
|
|
#include "esp_private/periph_ctrl.h"
|
|
#include "hal/sha_hal.h"
|
|
#include "hal/clk_gate_ll.h"
|
|
#include "sha_block.h"
|
|
|
|
#if defined(SOC_SHA_SUPPORT_SHA1)
|
|
|
|
static void sha1_update_block(sha1_ctx* ctx, esp_sha_type sha_type, const unsigned char *input, size_t ilen)
|
|
{
|
|
size_t fill;
|
|
uint32_t left, local_len = 0;
|
|
|
|
left = ctx->total[0] & 0x3F;
|
|
fill = 64 - left;
|
|
|
|
ctx->total[0] += (uint32_t) ilen;
|
|
ctx->total[0] &= 0xFFFFFFFF;
|
|
|
|
if ( ctx->total[0] < (uint32_t) ilen ) {
|
|
ctx->total[1]++;
|
|
}
|
|
|
|
if ( left && ilen >= fill ) {
|
|
memcpy( (void *) (ctx->buffer + left), input, fill );
|
|
input += fill;
|
|
ilen -= fill;
|
|
left = 0;
|
|
local_len = 64;
|
|
}
|
|
|
|
if ( (ilen >= 64) || local_len) {
|
|
/* Enable peripheral module */
|
|
periph_ll_enable_clk_clear_rst(PERIPH_SHA_MODULE);
|
|
|
|
if (ctx->first_block == 0) {
|
|
/* Writes the message digest to the SHA engine */
|
|
sha_hal_write_digest(sha_type, ctx->state);
|
|
}
|
|
|
|
/* First process buffered block, if any */
|
|
if ( local_len ) {
|
|
/* Hash a single block */
|
|
sha_hal_hash_block(sha_type, ctx->buffer, block_length(sha_type)/4, ctx->first_block);
|
|
if (ctx->first_block == 1) {
|
|
ctx->first_block = 0;
|
|
}
|
|
}
|
|
|
|
while ( ilen >= 64 ) {
|
|
sha_hal_hash_block(sha_type, input, block_length(sha_type)/4, ctx->first_block);
|
|
if (ctx->first_block == 1) {
|
|
ctx->first_block = 0;
|
|
}
|
|
input += 64;
|
|
ilen -= 64;
|
|
}
|
|
|
|
/* Reads the current message digest from the SHA engine */
|
|
sha_hal_read_digest(sha_type, ctx->state);
|
|
|
|
/* Disable peripheral module */
|
|
periph_ll_disable_clk_set_rst(PERIPH_SHA_MODULE);
|
|
}
|
|
|
|
if ( ilen > 0 ) {
|
|
memcpy( (void *) (ctx->buffer + left), input, ilen);
|
|
}
|
|
}
|
|
|
|
void sha1_block(esp_sha_type sha_type, const unsigned char *input, size_t ilen, unsigned char *output)
|
|
{
|
|
|
|
sha1_ctx ctx;
|
|
memset(&ctx, 0, sizeof(sha1_ctx));
|
|
ctx.first_block = 1;
|
|
|
|
sha1_update_block(&ctx, sha_type, input, ilen);
|
|
|
|
uint32_t last, padn;
|
|
uint32_t high, low;
|
|
unsigned char msglen[8];
|
|
|
|
high = ( ctx.total[0] >> 29 )
|
|
| ( ctx.total[1] << 3 );
|
|
low = ( ctx.total[0] << 3 );
|
|
|
|
PUT_UINT32_BE( high, msglen, 0 );
|
|
PUT_UINT32_BE( low, msglen, 4 );
|
|
|
|
last = ctx.total[0] & 0x3F;
|
|
padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
|
|
|
|
sha1_update_block(&ctx, sha_type, sha1_padding, padn);
|
|
|
|
sha1_update_block(&ctx, sha_type, msglen, 8);
|
|
|
|
memcpy(output, ctx.state, 20);
|
|
}
|
|
|
|
#endif /* defined(SOC_SHA_SUPPORT_SHA1) */
|
|
|
|
#if defined(SOC_SHA_SUPPORT_SHA224) || defined(SOC_SHA_SUPPORT_SHA256)
|
|
|
|
static void sha256_update_block(sha256_ctx* ctx, esp_sha_type sha_type, const unsigned char *input, size_t ilen)
|
|
{
|
|
size_t fill;
|
|
uint32_t left, local_len = 0;
|
|
|
|
left = ctx->total[0] & 0x3F;
|
|
fill = 64 - left;
|
|
|
|
ctx->total[0] += (uint32_t) ilen;
|
|
ctx->total[0] &= 0xFFFFFFFF;
|
|
|
|
if ( ctx->total[0] < (uint32_t) ilen ) {
|
|
ctx->total[1]++;
|
|
}
|
|
|
|
if ( left && ilen >= fill ) {
|
|
memcpy( (void *) (ctx->buffer + left), input, fill );
|
|
input += fill;
|
|
ilen -= fill;
|
|
left = 0;
|
|
local_len = 64;
|
|
}
|
|
|
|
if ( (ilen >= 64) || local_len) {
|
|
/* Enable peripheral module */
|
|
periph_ll_enable_clk_clear_rst(PERIPH_SHA_MODULE);
|
|
|
|
if (ctx->first_block == 0) {
|
|
/* Writes the message digest to the SHA engine */
|
|
sha_hal_write_digest(sha_type, ctx->state);
|
|
}
|
|
|
|
/* First process buffered block, if any */
|
|
if ( local_len ) {
|
|
/* Hash a single block */
|
|
sha_hal_hash_block(sha_type, ctx->buffer, block_length(sha_type)/4, ctx->first_block);
|
|
if (ctx->first_block == 1) {
|
|
ctx->first_block = 0;
|
|
}
|
|
}
|
|
|
|
while ( ilen >= 64 ) {
|
|
sha_hal_hash_block(sha_type, input, block_length(sha_type)/4, ctx->first_block);
|
|
if (ctx->first_block == 1) {
|
|
ctx->first_block = 0;
|
|
}
|
|
input += 64;
|
|
ilen -= 64;
|
|
}
|
|
|
|
/* Reads the current message digest from the SHA engine */
|
|
sha_hal_read_digest(sha_type, ctx->state);
|
|
|
|
/* Disable peripheral module */
|
|
periph_ll_disable_clk_set_rst(PERIPH_SHA_MODULE);
|
|
}
|
|
|
|
if ( ilen > 0 ) {
|
|
memcpy( (void *) (ctx->buffer + left), input, ilen);
|
|
}
|
|
}
|
|
|
|
void sha256_block(esp_sha_type sha_type, const unsigned char *input, size_t ilen, unsigned char *output)
|
|
{
|
|
|
|
sha256_ctx ctx;
|
|
memset(&ctx, 0, sizeof(sha256_ctx));
|
|
ctx.first_block = 1;
|
|
|
|
sha256_update_block(&ctx, sha_type, input, ilen);
|
|
|
|
uint32_t last, padn;
|
|
uint32_t high, low;
|
|
unsigned char msglen[8];
|
|
|
|
high = ( ctx.total[0] >> 29 )
|
|
| ( ctx.total[1] << 3 );
|
|
low = ( ctx.total[0] << 3 );
|
|
|
|
PUT_UINT32_BE( high, msglen, 0 );
|
|
PUT_UINT32_BE( low, msglen, 4 );
|
|
|
|
last = ctx.total[0] & 0x3F;
|
|
padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
|
|
|
|
sha256_update_block(&ctx, sha_type, sha256_padding, padn);
|
|
|
|
sha256_update_block(&ctx, sha_type, msglen, 8);
|
|
|
|
if (sha_type == SHA2_256) {
|
|
memcpy(output, ctx.state, 32);
|
|
} else if (sha_type == SHA2_224) {
|
|
memcpy(output, ctx.state, 28);
|
|
}
|
|
}
|
|
|
|
#endif /* defined(SOC_SHA_SUPPORT_SHA224) || defined(SOC_SHA_SUPPORT_SHA256) */
|
|
|
|
#if defined(SOC_SHA_SUPPORT_SHA384) || defined(SOC_SHA_SUPPORT_SHA512)
|
|
|
|
#if SOC_SHA_SUPPORT_SHA512_T
|
|
|
|
int sha_512_t_init_hash_block(uint16_t t)
|
|
{
|
|
uint32_t t_string = 0;
|
|
uint8_t t0, t1, t2, t_len;
|
|
|
|
if (t == 384) {
|
|
return -1;
|
|
}
|
|
|
|
if (t <= 9) {
|
|
t_string = (uint32_t)((1 << 23) | ((0x30 + t) << 24));
|
|
t_len = 0x48;
|
|
} else if (t <= 99) {
|
|
t0 = t % 10;
|
|
t1 = (t / 10) % 10;
|
|
t_string = (uint32_t)((1 << 15) | ((0x30 + t0) << 16) |
|
|
(((0x30 + t1) << 24)));
|
|
t_len = 0x50;
|
|
} else if (t <= 512) {
|
|
t0 = t % 10;
|
|
t1 = (t / 10) % 10;
|
|
t2 = t / 100;
|
|
t_string = (uint32_t)((1 << 7) | ((0x30 + t0) << 8) |
|
|
(((0x30 + t1) << 16) + ((0x30 + t2) << 24)));
|
|
t_len = 0x58;
|
|
} else {
|
|
return -1;
|
|
}
|
|
|
|
/* Calculates and sets the initial digiest for SHA512_t */
|
|
sha_hal_sha512_init_hash(t_string, t_len);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif //SOC_SHA_SUPPORT_SHA512_T
|
|
|
|
static void sha512_update_block(sha512_ctx* ctx, esp_sha_type sha_type, const unsigned char *input, size_t ilen)
|
|
{
|
|
|
|
size_t fill;
|
|
unsigned int left, local_len = 0;
|
|
|
|
left = (unsigned int) (ctx->total[0] & 0x7F);
|
|
fill = 128 - left;
|
|
|
|
ctx->total[0] += (uint64_t) ilen;
|
|
|
|
if ( ctx->total[0] < (uint64_t) ilen ) {
|
|
ctx->total[1]++;
|
|
}
|
|
|
|
if ( left && ilen >= fill ) {
|
|
memcpy( (void *) (ctx->buffer + left), input, fill );
|
|
input += fill;
|
|
ilen -= fill;
|
|
left = 0;
|
|
local_len = 128;
|
|
}
|
|
|
|
|
|
if ( (ilen >= 128) || local_len) {
|
|
|
|
/* Enable peripheral module */
|
|
periph_ll_enable_clk_clear_rst(PERIPH_SHA_MODULE);
|
|
|
|
if (ctx->first_block && sha_type == SHA2_512T){
|
|
sha_512_t_init_hash_block(ctx->t_val);
|
|
ctx->first_block = 0;
|
|
}
|
|
else if (ctx->first_block == 0) {
|
|
/* Writes the message digest to the SHA engine */
|
|
sha_hal_write_digest(sha_type, ctx->state);
|
|
}
|
|
|
|
/* First process buffered block, if any */
|
|
if ( local_len ) {
|
|
/* Hash a single block */
|
|
sha_hal_hash_block(sha_type, ctx->buffer, block_length(sha_type)/4, ctx->first_block);
|
|
if (ctx->first_block == 1) {
|
|
ctx->first_block = 0;
|
|
}
|
|
}
|
|
|
|
while ( ilen >= 128 ) {
|
|
sha_hal_hash_block(sha_type, input, block_length(sha_type)/4, ctx->first_block);
|
|
if (ctx->first_block == 1) {
|
|
ctx->first_block = 0;
|
|
}
|
|
input += 128;
|
|
ilen -= 128;
|
|
}
|
|
|
|
/* Reads the current message digest from the SHA engine */
|
|
sha_hal_read_digest(sha_type, ctx->state);
|
|
|
|
/* Disable peripheral module */
|
|
periph_ll_disable_clk_set_rst(PERIPH_SHA_MODULE);
|
|
}
|
|
|
|
if ( ilen > 0 ) {
|
|
memcpy( (void *) (ctx->buffer + left), input, ilen);
|
|
}
|
|
}
|
|
|
|
void sha512_block(esp_sha_type sha_type, const unsigned char *input, size_t ilen, unsigned char *output)
|
|
{
|
|
|
|
sha512_ctx ctx;
|
|
memset(&ctx, 0, sizeof(sha512_ctx));
|
|
ctx.first_block = 1;
|
|
|
|
sha512_update_block(&ctx, sha_type, input, ilen);
|
|
|
|
size_t last, padn;
|
|
uint64_t high, low;
|
|
unsigned char msglen[16];
|
|
|
|
high = ( ctx.total[0] >> 61 )
|
|
| ( ctx.total[1] << 3 );
|
|
low = ( ctx.total[0] << 3 );
|
|
|
|
PUT_UINT64_BE( high, msglen, 0 );
|
|
PUT_UINT64_BE( low, msglen, 8 );
|
|
|
|
last = (size_t)( ctx.total[0] & 0x7F );
|
|
padn = ( last < 112 ) ? ( 112 - last ) : ( 240 - last );
|
|
|
|
sha512_update_block( &ctx, sha_type, sha512_padding, padn );
|
|
|
|
sha512_update_block( &ctx, sha_type, msglen, 16 );
|
|
|
|
if (sha_type == SHA2_384) {
|
|
memcpy(output, ctx.state, 48);
|
|
} else {
|
|
memcpy(output, ctx.state, 64);
|
|
}
|
|
|
|
}
|
|
|
|
#endif /* defined(SOC_SHA_SUPPORT_SHA384) || defined(SOC_SHA_SUPPORT_SHA512) */
|
|
|
|
#if SOC_SHA_SUPPORT_SHA512_T
|
|
|
|
void sha512t_block(esp_sha_type sha_type, const unsigned char *input, size_t ilen, unsigned char *output, uint32_t t_val)
|
|
{
|
|
sha512_ctx ctx;
|
|
memset(&ctx, 0, sizeof(sha512_ctx));
|
|
ctx.first_block = 1;
|
|
ctx.t_val = t_val;
|
|
|
|
sha512_update_block(&ctx, sha_type, input, ilen);
|
|
|
|
size_t last, padn;
|
|
uint64_t high, low;
|
|
unsigned char msglen[16];
|
|
|
|
high = ( ctx.total[0] >> 61 )
|
|
| ( ctx.total[1] << 3 );
|
|
low = ( ctx.total[0] << 3 );
|
|
|
|
PUT_UINT64_BE( high, msglen, 0 );
|
|
PUT_UINT64_BE( low, msglen, 8 );
|
|
|
|
last = (size_t)( ctx.total[0] & 0x7F );
|
|
padn = ( last < 112 ) ? ( 112 - last ) : ( 240 - last );
|
|
|
|
sha512_update_block( &ctx, sha_type, sha512_padding, padn );
|
|
|
|
sha512_update_block( &ctx, sha_type, msglen, 16 );
|
|
|
|
if (sha_type == SHA2_384) {
|
|
memcpy(output, ctx.state, 48);
|
|
} else {
|
|
memcpy(output, ctx.state, 64);
|
|
}
|
|
}
|
|
|
|
#endif /*SOC_SHA_SUPPORT_SHA512_T*/
|
|
|
|
#endif /*SOC_SHA_SUPPORTED*/
|