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Hacl_HMAC.c
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Hacl_HMAC.c
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/* MIT License
*
* Copyright (c) 2016-2020 INRIA, CMU and Microsoft Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "Hacl_HMAC.h"
void
Hacl_HMAC_legacy_compute_sha1(
uint8_t *dst,
uint8_t *key,
uint32_t key_len,
uint8_t *data,
uint32_t data_len
)
{
uint32_t l = (uint32_t)64U;
KRML_CHECK_SIZE(sizeof (uint8_t), l);
{
uint8_t key_block[l];
memset(key_block, 0U, l * sizeof (uint8_t));
{
uint32_t i0;
if (key_len <= (uint32_t)64U)
{
i0 = key_len;
}
else
{
i0 = (uint32_t)20U;
}
{
uint8_t *nkey = key_block;
if (key_len <= (uint32_t)64U)
{
memcpy(nkey, key, key_len * sizeof (uint8_t));
}
else
{
Hacl_Hash_SHA1_legacy_hash(key, key_len, nkey);
}
KRML_CHECK_SIZE(sizeof (uint8_t), l);
{
uint8_t ipad[l];
memset(ipad, (uint8_t)0x36U, l * sizeof (uint8_t));
{
uint32_t i;
for (i = (uint32_t)0U; i < l; i++)
{
uint8_t xi = ipad[i];
uint8_t yi = key_block[i];
ipad[i] = xi ^ yi;
}
}
KRML_CHECK_SIZE(sizeof (uint8_t), l);
{
uint8_t opad[l];
memset(opad, (uint8_t)0x5cU, l * sizeof (uint8_t));
{
uint32_t scrut[5];
uint32_t *s;
uint8_t *dst1;
uint8_t *hash1;
{
uint32_t i;
for (i = (uint32_t)0U; i < l; i++)
{
uint8_t xi = opad[i];
uint8_t yi = key_block[i];
opad[i] = xi ^ yi;
}
}
scrut[0U] = (uint32_t)0x67452301U;
scrut[1U] = (uint32_t)0xefcdab89U;
scrut[2U] = (uint32_t)0x98badcfeU;
scrut[3U] = (uint32_t)0x10325476U;
scrut[4U] = (uint32_t)0xc3d2e1f0U;
s = scrut;
dst1 = ipad;
Hacl_Hash_Core_SHA1_legacy_init(s);
if (data_len == (uint32_t)0U)
{
Hacl_Hash_SHA1_legacy_update_last(s, (uint64_t)0U, ipad, (uint32_t)64U);
}
else
{
Hacl_Hash_SHA1_legacy_update_multi(s, ipad, (uint32_t)1U);
Hacl_Hash_SHA1_legacy_update_last(s, (uint64_t)(uint32_t)64U, data, data_len);
}
Hacl_Hash_Core_SHA1_legacy_finish(s, dst1);
hash1 = ipad;
Hacl_Hash_Core_SHA1_legacy_init(s);
if ((uint32_t)20U == (uint32_t)0U)
{
Hacl_Hash_SHA1_legacy_update_last(s, (uint64_t)0U, opad, (uint32_t)64U);
}
else
{
Hacl_Hash_SHA1_legacy_update_multi(s, opad, (uint32_t)1U);
Hacl_Hash_SHA1_legacy_update_last(s, (uint64_t)(uint32_t)64U, hash1, (uint32_t)20U);
}
Hacl_Hash_Core_SHA1_legacy_finish(s, dst);
}
}
}
}
}
}
}
void
Hacl_HMAC_compute_sha2_256(
uint8_t *dst,
uint8_t *key,
uint32_t key_len,
uint8_t *data,
uint32_t data_len
)
{
uint32_t l = (uint32_t)64U;
KRML_CHECK_SIZE(sizeof (uint8_t), l);
{
uint8_t key_block[l];
memset(key_block, 0U, l * sizeof (uint8_t));
{
uint32_t i0;
if (key_len <= (uint32_t)64U)
{
i0 = key_len;
}
else
{
i0 = (uint32_t)32U;
}
{
uint8_t *nkey = key_block;
if (key_len <= (uint32_t)64U)
{
memcpy(nkey, key, key_len * sizeof (uint8_t));
}
else
{
Hacl_Hash_SHA2_hash_256(key, key_len, nkey);
}
KRML_CHECK_SIZE(sizeof (uint8_t), l);
{
uint8_t ipad[l];
memset(ipad, (uint8_t)0x36U, l * sizeof (uint8_t));
{
uint32_t i;
for (i = (uint32_t)0U; i < l; i++)
{
uint8_t xi = ipad[i];
uint8_t yi = key_block[i];
ipad[i] = xi ^ yi;
}
}
KRML_CHECK_SIZE(sizeof (uint8_t), l);
{
uint8_t opad[l];
memset(opad, (uint8_t)0x5cU, l * sizeof (uint8_t));
{
uint32_t scrut[8];
uint32_t *s;
uint8_t *dst1;
uint8_t *hash1;
{
uint32_t i;
for (i = (uint32_t)0U; i < l; i++)
{
uint8_t xi = opad[i];
uint8_t yi = key_block[i];
opad[i] = xi ^ yi;
}
}
scrut[0U] = (uint32_t)0x6a09e667U;
scrut[1U] = (uint32_t)0xbb67ae85U;
scrut[2U] = (uint32_t)0x3c6ef372U;
scrut[3U] = (uint32_t)0xa54ff53aU;
scrut[4U] = (uint32_t)0x510e527fU;
scrut[5U] = (uint32_t)0x9b05688cU;
scrut[6U] = (uint32_t)0x1f83d9abU;
scrut[7U] = (uint32_t)0x5be0cd19U;
s = scrut;
dst1 = ipad;
Hacl_Hash_Core_SHA2_init_256(s);
if (data_len == (uint32_t)0U)
{
Hacl_Hash_SHA2_update_last_256(s, (uint64_t)0U, ipad, (uint32_t)64U);
}
else
{
Hacl_Hash_SHA2_update_multi_256(s, ipad, (uint32_t)1U);
Hacl_Hash_SHA2_update_last_256(s, (uint64_t)(uint32_t)64U, data, data_len);
}
Hacl_Hash_Core_SHA2_finish_256(s, dst1);
hash1 = ipad;
Hacl_Hash_Core_SHA2_init_256(s);
if ((uint32_t)32U == (uint32_t)0U)
{
Hacl_Hash_SHA2_update_last_256(s, (uint64_t)0U, opad, (uint32_t)64U);
}
else
{
Hacl_Hash_SHA2_update_multi_256(s, opad, (uint32_t)1U);
Hacl_Hash_SHA2_update_last_256(s, (uint64_t)(uint32_t)64U, hash1, (uint32_t)32U);
}
Hacl_Hash_Core_SHA2_finish_256(s, dst);
}
}
}
}
}
}
}
void
Hacl_HMAC_compute_sha2_384(
uint8_t *dst,
uint8_t *key,
uint32_t key_len,
uint8_t *data,
uint32_t data_len
)
{
uint32_t l = (uint32_t)128U;
KRML_CHECK_SIZE(sizeof (uint8_t), l);
{
uint8_t key_block[l];
memset(key_block, 0U, l * sizeof (uint8_t));
{
uint32_t i0;
if (key_len <= (uint32_t)128U)
{
i0 = key_len;
}
else
{
i0 = (uint32_t)48U;
}
{
uint8_t *nkey = key_block;
if (key_len <= (uint32_t)128U)
{
memcpy(nkey, key, key_len * sizeof (uint8_t));
}
else
{
Hacl_Hash_SHA2_hash_384(key, key_len, nkey);
}
KRML_CHECK_SIZE(sizeof (uint8_t), l);
{
uint8_t ipad[l];
memset(ipad, (uint8_t)0x36U, l * sizeof (uint8_t));
{
uint32_t i;
for (i = (uint32_t)0U; i < l; i++)
{
uint8_t xi = ipad[i];
uint8_t yi = key_block[i];
ipad[i] = xi ^ yi;
}
}
KRML_CHECK_SIZE(sizeof (uint8_t), l);
{
uint8_t opad[l];
memset(opad, (uint8_t)0x5cU, l * sizeof (uint8_t));
{
uint64_t scrut[8];
uint64_t *s;
uint8_t *dst1;
uint8_t *hash1;
{
uint32_t i;
for (i = (uint32_t)0U; i < l; i++)
{
uint8_t xi = opad[i];
uint8_t yi = key_block[i];
opad[i] = xi ^ yi;
}
}
scrut[0U] = (uint64_t)0xcbbb9d5dc1059ed8U;
scrut[1U] = (uint64_t)0x629a292a367cd507U;
scrut[2U] = (uint64_t)0x9159015a3070dd17U;
scrut[3U] = (uint64_t)0x152fecd8f70e5939U;
scrut[4U] = (uint64_t)0x67332667ffc00b31U;
scrut[5U] = (uint64_t)0x8eb44a8768581511U;
scrut[6U] = (uint64_t)0xdb0c2e0d64f98fa7U;
scrut[7U] = (uint64_t)0x47b5481dbefa4fa4U;
s = scrut;
dst1 = ipad;
Hacl_Hash_Core_SHA2_init_384(s);
if (data_len == (uint32_t)0U)
{
Hacl_Hash_SHA2_update_last_384(s,
FStar_UInt128_uint64_to_uint128((uint64_t)0U),
ipad,
(uint32_t)128U);
}
else
{
Hacl_Hash_SHA2_update_multi_384(s, ipad, (uint32_t)1U);
Hacl_Hash_SHA2_update_last_384(s,
FStar_UInt128_uint64_to_uint128((uint64_t)(uint32_t)128U),
data,
data_len);
}
Hacl_Hash_Core_SHA2_finish_384(s, dst1);
hash1 = ipad;
Hacl_Hash_Core_SHA2_init_384(s);
if ((uint32_t)48U == (uint32_t)0U)
{
Hacl_Hash_SHA2_update_last_384(s,
FStar_UInt128_uint64_to_uint128((uint64_t)0U),
opad,
(uint32_t)128U);
}
else
{
Hacl_Hash_SHA2_update_multi_384(s, opad, (uint32_t)1U);
Hacl_Hash_SHA2_update_last_384(s,
FStar_UInt128_uint64_to_uint128((uint64_t)(uint32_t)128U),
hash1,
(uint32_t)48U);
}
Hacl_Hash_Core_SHA2_finish_384(s, dst);
}
}
}
}
}
}
}
void
Hacl_HMAC_compute_sha2_512(
uint8_t *dst,
uint8_t *key,
uint32_t key_len,
uint8_t *data,
uint32_t data_len
)
{
uint32_t l = (uint32_t)128U;
KRML_CHECK_SIZE(sizeof (uint8_t), l);
{
uint8_t key_block[l];
memset(key_block, 0U, l * sizeof (uint8_t));
{
uint32_t i0;
if (key_len <= (uint32_t)128U)
{
i0 = key_len;
}
else
{
i0 = (uint32_t)64U;
}
{
uint8_t *nkey = key_block;
if (key_len <= (uint32_t)128U)
{
memcpy(nkey, key, key_len * sizeof (uint8_t));
}
else
{
Hacl_Hash_SHA2_hash_512(key, key_len, nkey);
}
KRML_CHECK_SIZE(sizeof (uint8_t), l);
{
uint8_t ipad[l];
memset(ipad, (uint8_t)0x36U, l * sizeof (uint8_t));
{
uint32_t i;
for (i = (uint32_t)0U; i < l; i++)
{
uint8_t xi = ipad[i];
uint8_t yi = key_block[i];
ipad[i] = xi ^ yi;
}
}
KRML_CHECK_SIZE(sizeof (uint8_t), l);
{
uint8_t opad[l];
memset(opad, (uint8_t)0x5cU, l * sizeof (uint8_t));
{
uint64_t scrut[8];
uint64_t *s;
uint8_t *dst1;
uint8_t *hash1;
{
uint32_t i;
for (i = (uint32_t)0U; i < l; i++)
{
uint8_t xi = opad[i];
uint8_t yi = key_block[i];
opad[i] = xi ^ yi;
}
}
scrut[0U] = (uint64_t)0x6a09e667f3bcc908U;
scrut[1U] = (uint64_t)0xbb67ae8584caa73bU;
scrut[2U] = (uint64_t)0x3c6ef372fe94f82bU;
scrut[3U] = (uint64_t)0xa54ff53a5f1d36f1U;
scrut[4U] = (uint64_t)0x510e527fade682d1U;
scrut[5U] = (uint64_t)0x9b05688c2b3e6c1fU;
scrut[6U] = (uint64_t)0x1f83d9abfb41bd6bU;
scrut[7U] = (uint64_t)0x5be0cd19137e2179U;
s = scrut;
dst1 = ipad;
Hacl_Hash_Core_SHA2_init_512(s);
if (data_len == (uint32_t)0U)
{
Hacl_Hash_SHA2_update_last_512(s,
FStar_UInt128_uint64_to_uint128((uint64_t)0U),
ipad,
(uint32_t)128U);
}
else
{
Hacl_Hash_SHA2_update_multi_512(s, ipad, (uint32_t)1U);
Hacl_Hash_SHA2_update_last_512(s,
FStar_UInt128_uint64_to_uint128((uint64_t)(uint32_t)128U),
data,
data_len);
}
Hacl_Hash_Core_SHA2_finish_512(s, dst1);
hash1 = ipad;
Hacl_Hash_Core_SHA2_init_512(s);
if ((uint32_t)64U == (uint32_t)0U)
{
Hacl_Hash_SHA2_update_last_512(s,
FStar_UInt128_uint64_to_uint128((uint64_t)0U),
opad,
(uint32_t)128U);
}
else
{
Hacl_Hash_SHA2_update_multi_512(s, opad, (uint32_t)1U);
Hacl_Hash_SHA2_update_last_512(s,
FStar_UInt128_uint64_to_uint128((uint64_t)(uint32_t)128U),
hash1,
(uint32_t)64U);
}
Hacl_Hash_Core_SHA2_finish_512(s, dst);
}
}
}
}
}
}
}