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Merge pull request #232 from PQClean/fix_incremental_sha512

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Fix incremental sha512
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Thom Wiggers 2019-09-12 10:27:20 +02:00 committed by GitHub
commit 88e59b3d61
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 49 additions and 1 deletions
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2
common/sha2.c
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@ -561,7 +561,7 @@ void sha224_inc_blocks(sha224ctx *state, const uint8_t *in, size_t inblocks) {
void sha512_inc_blocks(sha512ctx *state, const uint8_t *in, size_t inblocks) {
uint64_t bytes = load_bigendian_64(state->ctx + 64);
crypto_hashblocks_sha256(state->ctx, in, 128 * inblocks);
crypto_hashblocks_sha512(state->ctx, in, 128 * inblocks);
bytes += 128 * inblocks;
store_bigendian_64(state->ctx + 64, bytes);

48
test/test_common/sha2.c
View File

@ -7,6 +7,20 @@
const unsigned char plaintext[113] = "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu";
const unsigned char plaintext2[128] = {
0xfd, 0x22, 0x03, 0xe4, 0x67, 0x57, 0x4e, 0x83, 0x4a, 0xb0, 0x7c, 0x90,
0x97, 0xae, 0x16, 0x45, 0x32, 0xf2, 0x4b, 0xe1, 0xeb, 0x5d, 0x88, 0xf1,
0xaf, 0x77, 0x48, 0xce, 0xff, 0x0d, 0x2c, 0x67, 0xa2, 0x1f, 0x4e, 0x40,
0x97, 0xf9, 0xd3, 0xbb, 0x4e, 0x9f, 0xbf, 0x97, 0x18, 0x6e, 0x0d, 0xb6,
0xdb, 0x01, 0x00, 0x23, 0x0a, 0x52, 0xb4, 0x53, 0xd4, 0x21, 0xf8, 0xab,
0x9c, 0x9a, 0x60, 0x43, 0xaa, 0x32, 0x95, 0xea, 0x20, 0xd2, 0xf0, 0x6a,
0x2f, 0x37, 0x47, 0x0d, 0x8a, 0x99, 0x07, 0x5f, 0x1b, 0x8a, 0x83, 0x36,
0xf6, 0x22, 0x8c, 0xf0, 0x8b, 0x59, 0x42, 0xfc, 0x1f, 0xb4, 0x29, 0x9c,
0x7d, 0x24, 0x80, 0xe8, 0xe8, 0x2b, 0xce, 0x17, 0x55, 0x40, 0xbd, 0xfa,
0xd7, 0x75, 0x2b, 0xc9, 0x5b, 0x57, 0x7f, 0x22, 0x95, 0x15, 0x39, 0x4f,
0x3a, 0xe5, 0xce, 0xc8, 0x70, 0xa4, 0xb2, 0xf8
};
const unsigned char expected_224[28] = {
0xc9, 0x7c, 0xa9, 0xa5, 0x59, 0x85, 0x0c, 0xe9, 0x7a, 0x04, 0xa9, 0x6d,
0xef, 0x6d, 0x99, 0xa9, 0xe0, 0xe0, 0xe2, 0xab, 0x14, 0xe6, 0xb8, 0xdf,
@ -34,6 +48,14 @@ const unsigned char expected_512[64] = {
0xc7, 0xd3, 0x29, 0xee, 0xb6, 0xdd, 0x26, 0x54, 0x5e, 0x96, 0xe5, 0x5b,
0x87, 0x4b, 0xe9, 0x09
};
const unsigned char expected_512_2[64] = {
0xa2, 0x1b, 0x10, 0x77, 0xd5, 0x2b, 0x27, 0xac, 0x54, 0x5a, 0xf6, 0x3b,
0x32, 0x74, 0x6c, 0x6e, 0x3c, 0x51, 0xcb, 0x0c, 0xb9, 0xf2, 0x81, 0xeb,
0x9f, 0x35, 0x80, 0xa6, 0xd4, 0x99, 0x6d, 0x5c, 0x99, 0x17, 0xd2, 0xa6,
0xe4, 0x84, 0x62, 0x7a, 0x9d, 0x5a, 0x06, 0xfa, 0x1b, 0x25, 0x32, 0x7a,
0x9d, 0x71, 0x0e, 0x02, 0x73, 0x87, 0xfc, 0x3e, 0x07, 0xd7, 0xc4, 0xd1,
0x4c, 0x60, 0x86, 0xcc
};
static int test_sha256_incremental(void) {
unsigned char output[32];
@ -62,6 +84,31 @@ static int test_sha256_incremental(void) {
return 0;
}
static int test_sha512_incremental(void) {
unsigned char output[64];
sha512ctx state;
int i = 0;
sha512_inc_init(&state);
sha512_inc_blocks(&state, plaintext2, 1);
sha512_inc_finalize(output, &state, NULL, 0);
if (memcmp(expected_512_2, output, 64) != 0) {
printf("ERROR sha512 incremental output did not match test vector.\n");
printf("Expected: ");
for (i = 0; i < 64; i++) {
printf("%02X", expected_512[i]);
}
printf("\n");
printf("Received: ");
for (i = 0; i < 64; i++) {
printf("%02X", output[i]);
}
printf("\n");
return 1;
}
return 0;
}
static int test_sha224(void) {
unsigned char output[28];
int i = 0;
@ -165,6 +212,7 @@ int main(void) {
result += test_sha256_incremental();
result += test_sha384();
result += test_sha512();
result += test_sha512_incremental();
if (result != 0) {
puts("Errors occurred");