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hash/sha512: add SHA-512/224 and SHA-512/256 variants

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This commit is contained in:
Lucas Gabriel Vuotto 2024-06-17 14:41:20 +00:00
parent d66daa8938
commit 9ba30dbe41
5 changed files with 197 additions and 4 deletions
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5
README
View File

@ -23,7 +23,8 @@ Hash
- [x] SHA-224
- [x] SHA-256
- [x] SHA-384
- [x] SHA-512 (needed for Ed25519)
- [x] SHA-512
- [x] SHA-512/224 & SHA-512/256
Authentication
--------------
@ -63,8 +64,6 @@ Utilities
Hash
----
- [ ] SHA-512/224 & SHA-512/256 (most of the work done)
Authentication
--------------

170
hash_sha384_sha512.c
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@ -53,6 +53,24 @@
#define SHA512_H0_6 UINT64_C(0x1f83d9abfb41bd6b)
#define SHA512_H0_7 UINT64_C(0x5be0cd19137e2179)
#define SHA512_224_H0_0 UINT64_C(0x8c3d37c819544da2)
#define SHA512_224_H0_1 UINT64_C(0x73e1996689dcd4d6)
#define SHA512_224_H0_2 UINT64_C(0x1dfab7ae32ff9c82)
#define SHA512_224_H0_3 UINT64_C(0x679dd514582f9fcf)
#define SHA512_224_H0_4 UINT64_C(0x0f6d2b697bd44da8)
#define SHA512_224_H0_5 UINT64_C(0x77e36f7304c48942)
#define SHA512_224_H0_6 UINT64_C(0x3f9d85a86a1d36c8)
#define SHA512_224_H0_7 UINT64_C(0x1112e6ad91d692a1)
#define SHA512_256_H0_0 UINT64_C(0x22312194fc2bf72c)
#define SHA512_256_H0_1 UINT64_C(0x9f555fa3c84c64c2)
#define SHA512_256_H0_2 UINT64_C(0x2393b86b6f53b151)
#define SHA512_256_H0_3 UINT64_C(0x963877195940eabd)
#define SHA512_256_H0_4 UINT64_C(0x96283ee2a88effe3)
#define SHA512_256_H0_5 UINT64_C(0xbe5e1e2553863992)
#define SHA512_256_H0_6 UINT64_C(0x2b0199fc2c85b8aa)
#define SHA512_256_H0_7 UINT64_C(0x0eb72ddc81c52ca2)
static int
sha384_init(void *arg)
@ -102,6 +120,54 @@ sha512_init(void *arg)
return 1;
}
static int
sha512_224_init(void *arg)
{
struct sha512_state *state = arg;
size_t i;
state->h0 = SHA512_224_H0_0;
state->h1 = SHA512_224_H0_1;
state->h2 = SHA512_224_H0_2;
state->h3 = SHA512_224_H0_3;
state->h4 = SHA512_224_H0_4;
state->h5 = SHA512_224_H0_5;
state->h6 = SHA512_224_H0_6;
state->h7 = SHA512_224_H0_7;
state->szhi = state->szlo = 0;
state->blen = 0;
for (i = 0; i < LC_SHA512_BLOCKLEN; i++)
state->b[i] = 0;
return 1;
}
static int
sha512_256_init(void *arg)
{
struct sha512_state *state = arg;
size_t i;
state->h0 = SHA512_256_H0_0;
state->h1 = SHA512_256_H0_1;
state->h2 = SHA512_256_H0_2;
state->h3 = SHA512_256_H0_3;
state->h4 = SHA512_256_H0_4;
state->h5 = SHA512_256_H0_5;
state->h6 = SHA512_256_H0_6;
state->h7 = SHA512_256_H0_7;
state->szhi = state->szlo = 0;
state->blen = 0;
for (i = 0; i < LC_SHA512_BLOCKLEN; i++)
state->b[i] = 0;
return 1;
}
static int
sha384_sha512_update(void *arg, const uint8_t *in, size_t inlen)
{
@ -214,6 +280,46 @@ sha512_final(void *arg, uint8_t *out, size_t *outlen)
return 1;
}
static int
sha512_224_final(void *arg, uint8_t *out, size_t *outlen)
{
struct sha512_state *state = arg;
*outlen = LC_SHA512_224_HASHLEN;
if (out == NULL)
return 1;
sha384_sha512_final(state);
store64be(out, state->h0);
store64be(out + 8, state->h1);
store64be(out + 16, state->h2);
store32be(out + 24, state->h3 >> 32);
lc_scrub(state, sizeof(*state));
return 1;
}
static int
sha512_256_final(void *arg, uint8_t *out, size_t *outlen)
{
struct sha512_state *state = arg;
*outlen = LC_SHA512_256_HASHLEN;
if (out == NULL)
return 1;
sha384_sha512_final(state);
store64be(out, state->h0);
store64be(out + 8, state->h1);
store64be(out + 16, state->h2);
store64be(out + 24, state->h3);
lc_scrub(state, sizeof(*state));
return 1;
}
static int
sha384_hash(uint8_t *out, size_t *outlen, const uint8_t *in, size_t inlen)
{
@ -244,6 +350,36 @@ sha512_hash(uint8_t *out, size_t *outlen, const uint8_t *in, size_t inlen)
sha512_final(&state, out, outlen);
}
static int
sha512_224_hash(uint8_t *out, size_t *outlen, const uint8_t *in, size_t inlen)
{
struct sha512_state state;
if (out == NULL) {
*outlen = LC_SHA512_HASHLEN;
return 1;
}
return sha512_224_init(&state) &&
sha384_sha512_update(&state, in, inlen) &&
sha512_224_final(&state, out, outlen);
}
static int
sha512_256_hash(uint8_t *out, size_t *outlen, const uint8_t *in, size_t inlen)
{
struct sha512_state state;
if (out == NULL) {
*outlen = LC_SHA512_HASHLEN;
return 1;
}
return sha512_256_init(&state) &&
sha384_sha512_update(&state, in, inlen) &&
sha512_256_final(&state, out, outlen);
}
const struct lc_hash_impl *
lc_hash_impl_sha384(void)
@ -278,3 +414,37 @@ lc_hash_impl_sha512(void)
return &sha512_impl;
}
const struct lc_hash_impl *
lc_hash_impl_sha512_224(void)
{
static struct lc_hash_impl sha512_224_impl = {
.init = &sha512_224_init,
.update = &sha384_sha512_update,
.final = &sha512_224_final,
.hash = &sha512_224_hash,
.argsz = sizeof(struct sha512_state),
.blocklen = LC_SHA512_224_BLOCKLEN,
.hashlen = LC_SHA512_224_HASHLEN,
};
return &sha512_224_impl;
}
const struct lc_hash_impl *
lc_hash_impl_sha512_256(void)
{
static struct lc_hash_impl sha512_256_impl = {
.init = &sha512_256_init,
.update = &sha384_sha512_update,
.final = &sha512_256_final,
.hash = &sha512_256_hash,
.argsz = sizeof(struct sha512_state),
.blocklen = LC_SHA512_256_BLOCKLEN,
.hashlen = LC_SHA512_256_HASHLEN,
};
return &sha512_256_impl;
}

6
lilcrypto.h
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@ -35,6 +35,10 @@
#define LC_SHA384_HASHLEN 48
#define LC_SHA512_BLOCKLEN 128
#define LC_SHA512_HASHLEN 64
#define LC_SHA512_224_BLOCKLEN 128
#define LC_SHA512_224_HASHLEN 28
#define LC_SHA512_256_BLOCKLEN 128
#define LC_SHA512_256_HASHLEN 32
/* Authentitcation. */
#define LC_POLY1305_BLOCKLEN 16
@ -132,6 +136,8 @@ const struct lc_hash_impl *lc_hash_impl_sha224(void);
const struct lc_hash_impl *lc_hash_impl_sha256(void);
const struct lc_hash_impl *lc_hash_impl_sha384(void);
const struct lc_hash_impl *lc_hash_impl_sha512(void);
const struct lc_hash_impl *lc_hash_impl_sha512_224(void);
const struct lc_hash_impl *lc_hash_impl_sha512_256(void);
/*

4
wycheproof/Makefile
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@ -40,7 +40,9 @@ tests-mac:
${WYCHEPROOF_DIR}/testvectors/hmac_sha384_test.json \
${WYCHEPROOF_DIR}/testvectors_v1/hmac_sha384_test.json \
${WYCHEPROOF_DIR}/testvectors/hmac_sha512_test.json \
${WYCHEPROOF_DIR}/testvectors_v1/hmac_sha512_test.json
${WYCHEPROOF_DIR}/testvectors_v1/hmac_sha512_test.json \
${WYCHEPROOF_DIR}/testvectors_v1/hmac_sha512_224_test.json \
${WYCHEPROOF_DIR}/testvectors_v1/hmac_sha512_256_test.json
.endfor
.include <bsd.prog.mk>

16
wycheproof_mac.c
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@ -51,6 +51,8 @@ static int hmac_sha224_runner(const struct testcase *, int);
static int hmac_sha256_runner(const struct testcase *, int);
static int hmac_sha384_runner(const struct testcase *, int);
static int hmac_sha512_runner(const struct testcase *, int);
static int hmac_sha512_224_runner(const struct testcase *, int);
static int hmac_sha512_256_runner(const struct testcase *, int);
static inline uint8_t
@ -103,6 +105,8 @@ static int
{ "HMACSHA256", &hmac_sha256_runner },
{ "HMACSHA384", &hmac_sha384_runner },
{ "HMACSHA512", &hmac_sha512_runner },
{ "HMACSHA512/224", &hmac_sha512_224_runner },
{ "HMACSHA512/256", &hmac_sha512_256_runner },
};
struct kwrunner *match;
@ -294,3 +298,15 @@ hmac_sha512_runner(const struct testcase *c, int verbose)
{
return hmac_sha2_runner(lc_hash_impl_sha512(), c, verbose);
}
static int
hmac_sha512_224_runner(const struct testcase *c, int verbose)
{
return hmac_sha2_runner(lc_hash_impl_sha512_224(), c, verbose);
}
static int
hmac_sha512_256_runner(const struct testcase *c, int verbose)
{
return hmac_sha2_runner(lc_hash_impl_sha512_256(), c, verbose);
}