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Code Issues 1 Releases Wiki Activity

Add abstract state duplication for SHA256 incremental hashing API

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This commit is contained in:
Douglas Stebila 2019-07-17 22:42:51 -04:00
parent 4f19ea25d0
commit 6461896475
14 changed files with 18 additions and 12 deletions
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5
common/sha2.c
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@ -4,6 +4,7 @@
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include "sha2.h"
@ -528,6 +529,10 @@ void sha512_inc_init(sha512ctx *state) {
}
}
void sha256_inc_dupe_state(sha256ctx *stateout, const sha256ctx *statein) {
memcpy(stateout, statein, sizeof(sha256ctx));
}
void sha256_inc_blocks(sha256ctx *state, const uint8_t *in, size_t inblocks) {
uint64_t bytes = load_bigendian_64(state->ctx + 32);

1
common/sha2.h
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@ -30,6 +30,7 @@ void sha224_inc_finalize(uint8_t *out, sha224ctx *state, const uint8_t *in, size
void sha224(uint8_t *out, const uint8_t *in, size_t inlen);
void sha256_inc_init(sha256ctx *state);
void sha256_inc_dupe_state(sha256ctx *stateout, const sha256ctx *statein);
void sha256_inc_blocks(sha256ctx *state, const uint8_t *in, size_t inblocks);
void sha256_inc_finalize(uint8_t *out, sha256ctx *state, const uint8_t *in, size_t inlen);
void sha256(uint8_t *out, const uint8_t *in, size_t inlen);

2
crypto_sign/sphincs-sha256-128f-robust/clean/thash_sha256_robust.c
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@ -28,7 +28,7 @@ static void PQCLEAN_SPHINCSSHA256128FROBUST_CLEAN_thash(
PQCLEAN_SPHINCSSHA256128FROBUST_CLEAN_mgf1(bitmask, inblocks * SPX_N, buf, SPX_N + SPX_SHA256_ADDR_BYTES);
/* Retrieve precomputed state containing pub_seed */
memcpy(&sha2_state, hash_state_seeded, sizeof(sha256ctx));
sha256_inc_dupe_state(&sha2_state, hash_state_seeded);
for (i = 0; i < inblocks * SPX_N; i++) {
buf[SPX_N + SPX_SHA256_ADDR_BYTES + i] = in[i] ^ bitmask[i];

2
crypto_sign/sphincs-sha256-128f-simple/clean/thash_sha256_simple.c
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@ -23,7 +23,7 @@ static void PQCLEAN_SPHINCSSHA256128FSIMPLE_CLEAN_thash(
(void)pub_seed; /* Suppress an 'unused parameter' warning. */
/* Retrieve precomputed state containing pub_seed */
memcpy(&sha2_state, hash_state_seeded, sizeof(sha256ctx));
sha256_inc_dupe_state(&sha2_state, hash_state_seeded);
PQCLEAN_SPHINCSSHA256128FSIMPLE_CLEAN_compress_address(buf, addr);
memcpy(buf + SPX_SHA256_ADDR_BYTES, in, inblocks * SPX_N);

2
crypto_sign/sphincs-sha256-128s-robust/clean/thash_sha256_robust.c
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@ -28,7 +28,7 @@ static void PQCLEAN_SPHINCSSHA256128SROBUST_CLEAN_thash(
PQCLEAN_SPHINCSSHA256128SROBUST_CLEAN_mgf1(bitmask, inblocks * SPX_N, buf, SPX_N + SPX_SHA256_ADDR_BYTES);
/* Retrieve precomputed state containing pub_seed */
memcpy(&sha2_state, hash_state_seeded, sizeof(sha256ctx));
sha256_inc_dupe_state(&sha2_state, hash_state_seeded);
for (i = 0; i < inblocks * SPX_N; i++) {
buf[SPX_N + SPX_SHA256_ADDR_BYTES + i] = in[i] ^ bitmask[i];

2
crypto_sign/sphincs-sha256-128s-simple/clean/thash_sha256_simple.c
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@ -23,7 +23,7 @@ static void PQCLEAN_SPHINCSSHA256128SSIMPLE_CLEAN_thash(
(void)pub_seed; /* Suppress an 'unused parameter' warning. */
/* Retrieve precomputed state containing pub_seed */
memcpy(&sha2_state, hash_state_seeded, sizeof(sha256ctx));
sha256_inc_dupe_state(&sha2_state, hash_state_seeded);
PQCLEAN_SPHINCSSHA256128SSIMPLE_CLEAN_compress_address(buf, addr);
memcpy(buf + SPX_SHA256_ADDR_BYTES, in, inblocks * SPX_N);

2
crypto_sign/sphincs-sha256-192f-robust/clean/thash_sha256_robust.c
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@ -28,7 +28,7 @@ static void PQCLEAN_SPHINCSSHA256192FROBUST_CLEAN_thash(
PQCLEAN_SPHINCSSHA256192FROBUST_CLEAN_mgf1(bitmask, inblocks * SPX_N, buf, SPX_N + SPX_SHA256_ADDR_BYTES);
/* Retrieve precomputed state containing pub_seed */
memcpy(&sha2_state, hash_state_seeded, sizeof(sha256ctx));
sha256_inc_dupe_state(&sha2_state, hash_state_seeded);
for (i = 0; i < inblocks * SPX_N; i++) {
buf[SPX_N + SPX_SHA256_ADDR_BYTES + i] = in[i] ^ bitmask[i];

2
crypto_sign/sphincs-sha256-192f-simple/clean/thash_sha256_simple.c
View File

@ -23,7 +23,7 @@ static void PQCLEAN_SPHINCSSHA256192FSIMPLE_CLEAN_thash(
(void)pub_seed; /* Suppress an 'unused parameter' warning. */
/* Retrieve precomputed state containing pub_seed */
memcpy(&sha2_state, hash_state_seeded, sizeof(sha256ctx));
sha256_inc_dupe_state(&sha2_state, hash_state_seeded);
PQCLEAN_SPHINCSSHA256192FSIMPLE_CLEAN_compress_address(buf, addr);
memcpy(buf + SPX_SHA256_ADDR_BYTES, in, inblocks * SPX_N);

2
crypto_sign/sphincs-sha256-192s-robust/clean/thash_sha256_robust.c
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@ -28,7 +28,7 @@ static void PQCLEAN_SPHINCSSHA256192SROBUST_CLEAN_thash(
PQCLEAN_SPHINCSSHA256192SROBUST_CLEAN_mgf1(bitmask, inblocks * SPX_N, buf, SPX_N + SPX_SHA256_ADDR_BYTES);
/* Retrieve precomputed state containing pub_seed */
memcpy(&sha2_state, hash_state_seeded, sizeof(sha256ctx));
sha256_inc_dupe_state(&sha2_state, hash_state_seeded);
for (i = 0; i < inblocks * SPX_N; i++) {
buf[SPX_N + SPX_SHA256_ADDR_BYTES + i] = in[i] ^ bitmask[i];

2
crypto_sign/sphincs-sha256-192s-simple/clean/thash_sha256_simple.c
View File

@ -23,7 +23,7 @@ static void PQCLEAN_SPHINCSSHA256192SSIMPLE_CLEAN_thash(
(void)pub_seed; /* Suppress an 'unused parameter' warning. */
/* Retrieve precomputed state containing pub_seed */
memcpy(&sha2_state, hash_state_seeded, sizeof(sha256ctx));
sha256_inc_dupe_state(&sha2_state, hash_state_seeded);
PQCLEAN_SPHINCSSHA256192SSIMPLE_CLEAN_compress_address(buf, addr);
memcpy(buf + SPX_SHA256_ADDR_BYTES, in, inblocks * SPX_N);

2
crypto_sign/sphincs-sha256-256f-robust/clean/thash_sha256_robust.c
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@ -28,7 +28,7 @@ static void PQCLEAN_SPHINCSSHA256256FROBUST_CLEAN_thash(
PQCLEAN_SPHINCSSHA256256FROBUST_CLEAN_mgf1(bitmask, inblocks * SPX_N, buf, SPX_N + SPX_SHA256_ADDR_BYTES);
/* Retrieve precomputed state containing pub_seed */
memcpy(&sha2_state, hash_state_seeded, sizeof(sha256ctx));
sha256_inc_dupe_state(&sha2_state, hash_state_seeded);
for (i = 0; i < inblocks * SPX_N; i++) {
buf[SPX_N + SPX_SHA256_ADDR_BYTES + i] = in[i] ^ bitmask[i];

2
crypto_sign/sphincs-sha256-256f-simple/clean/thash_sha256_simple.c
View File

@ -23,7 +23,7 @@ static void PQCLEAN_SPHINCSSHA256256FSIMPLE_CLEAN_thash(
(void)pub_seed; /* Suppress an 'unused parameter' warning. */
/* Retrieve precomputed state containing pub_seed */
memcpy(&sha2_state, hash_state_seeded, sizeof(sha256ctx));
sha256_inc_dupe_state(&sha2_state, hash_state_seeded);
PQCLEAN_SPHINCSSHA256256FSIMPLE_CLEAN_compress_address(buf, addr);
memcpy(buf + SPX_SHA256_ADDR_BYTES, in, inblocks * SPX_N);

2
crypto_sign/sphincs-sha256-256s-robust/clean/thash_sha256_robust.c
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@ -28,7 +28,7 @@ static void PQCLEAN_SPHINCSSHA256256SROBUST_CLEAN_thash(
PQCLEAN_SPHINCSSHA256256SROBUST_CLEAN_mgf1(bitmask, inblocks * SPX_N, buf, SPX_N + SPX_SHA256_ADDR_BYTES);
/* Retrieve precomputed state containing pub_seed */
memcpy(&sha2_state, hash_state_seeded, sizeof(sha256ctx));
sha256_inc_dupe_state(&sha2_state, hash_state_seeded);
for (i = 0; i < inblocks * SPX_N; i++) {
buf[SPX_N + SPX_SHA256_ADDR_BYTES + i] = in[i] ^ bitmask[i];

2
crypto_sign/sphincs-sha256-256s-simple/clean/thash_sha256_simple.c
View File

@ -23,7 +23,7 @@ static void PQCLEAN_SPHINCSSHA256256SSIMPLE_CLEAN_thash(
(void)pub_seed; /* Suppress an 'unused parameter' warning. */
/* Retrieve precomputed state containing pub_seed */
memcpy(&sha2_state, hash_state_seeded, sizeof(sha256ctx));
sha256_inc_dupe_state(&sha2_state, hash_state_seeded);
PQCLEAN_SPHINCSSHA256256SSIMPLE_CLEAN_compress_address(buf, addr);
memcpy(buf + SPX_SHA256_ADDR_BYTES, in, inblocks * SPX_N);