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Hacl_HMAC.c
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/* MIT License
*
* Copyright (c) 2016-2022 INRIA, CMU and Microsoft Corporation
* Copyright (c) 2022-2023 HACL* Contributors
*
* 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 "internal/Hacl_HMAC.h"
#include "Hacl_Streaming_Types.h"
#include "Hacl_Hash_SHA3.h"
#include "Hacl_Hash_SHA2.h"
#include "Hacl_Hash_Blake2s.h"
#include "Hacl_Hash_Blake2b.h"
#include "internal/Hacl_Hash_SHA3.h"
#include "internal/Hacl_Hash_SHA2.h"
#include "internal/Hacl_Hash_SHA1.h"
#include "internal/Hacl_Hash_MD5.h"
#include "internal/Hacl_Hash_Blake2s.h"
#include "internal/Hacl_Hash_Blake2b.h"
/**
Write the HMAC-MD5 MAC of a message (`data`) by using a key (`key`) into `dst`.
The key can be any length and will be hashed if it is longer and padded if it is shorter than 64 byte.
`dst` must point to 16 bytes of memory.
*/
void
Hacl_HMAC_compute_md5(
uint8_t *dst,
uint8_t *key,
uint32_t key_len,
uint8_t *data,
uint32_t data_len
)
{
uint8_t key_block[64U];
memset(key_block, 0U, 64U * sizeof (uint8_t));
uint8_t *nkey = key_block;
uint32_t ite;
if (key_len <= 64U)
{
ite = key_len;
}
else
{
ite = 16U;
}
uint8_t *zeroes = key_block + ite;
KRML_MAYBE_UNUSED_VAR(zeroes);
if (key_len <= 64U)
{
memcpy(nkey, key, key_len * sizeof (uint8_t));
}
else
{
Hacl_Hash_MD5_hash_oneshot(nkey, key, key_len);
}
uint8_t ipad[64U];
memset(ipad, 0x36U, 64U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 64U; i++)
{
uint8_t xi = ipad[i];
uint8_t yi = key_block[i];
ipad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint8_t opad[64U];
memset(opad, 0x5cU, 64U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 64U; i++)
{
uint8_t xi = opad[i];
uint8_t yi = key_block[i];
opad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint32_t s[4U] = { 0x67452301U, 0xefcdab89U, 0x98badcfeU, 0x10325476U };
uint8_t *dst1 = ipad;
if (data_len == 0U)
{
Hacl_Hash_MD5_update_last(s, 0ULL, ipad, 64U);
}
else
{
uint32_t block_len = 64U;
uint32_t n_blocks0 = data_len / block_len;
uint32_t rem0 = data_len % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = data_len - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = data;
uint8_t *rem = data + full_blocks_len;
Hacl_Hash_MD5_update_multi(s, ipad, 1U);
Hacl_Hash_MD5_update_multi(s, full_blocks, n_blocks);
Hacl_Hash_MD5_update_last(s, (uint64_t)64U + (uint64_t)full_blocks_len, rem, rem_len);
}
Hacl_Hash_MD5_finish(s, dst1);
uint8_t *hash1 = ipad;
Hacl_Hash_MD5_init(s);
uint32_t block_len = 64U;
uint32_t n_blocks0 = 16U / block_len;
uint32_t rem0 = 16U % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = 16U - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = hash1;
uint8_t *rem = hash1 + full_blocks_len;
Hacl_Hash_MD5_update_multi(s, opad, 1U);
Hacl_Hash_MD5_update_multi(s, full_blocks, n_blocks);
Hacl_Hash_MD5_update_last(s, (uint64_t)64U + (uint64_t)full_blocks_len, rem, rem_len);
Hacl_Hash_MD5_finish(s, dst);
}
/**
Write the HMAC-SHA-1 MAC of a message (`data`) by using a key (`key`) into `dst`.
The key can be any length and will be hashed if it is longer and padded if it is shorter than 64 byte.
`dst` must point to 20 bytes of memory.
*/
void
Hacl_HMAC_compute_sha1(
uint8_t *dst,
uint8_t *key,
uint32_t key_len,
uint8_t *data,
uint32_t data_len
)
{
uint8_t key_block[64U];
memset(key_block, 0U, 64U * sizeof (uint8_t));
uint8_t *nkey = key_block;
uint32_t ite;
if (key_len <= 64U)
{
ite = key_len;
}
else
{
ite = 20U;
}
uint8_t *zeroes = key_block + ite;
KRML_MAYBE_UNUSED_VAR(zeroes);
if (key_len <= 64U)
{
memcpy(nkey, key, key_len * sizeof (uint8_t));
}
else
{
Hacl_Hash_SHA1_hash_oneshot(nkey, key, key_len);
}
uint8_t ipad[64U];
memset(ipad, 0x36U, 64U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 64U; i++)
{
uint8_t xi = ipad[i];
uint8_t yi = key_block[i];
ipad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint8_t opad[64U];
memset(opad, 0x5cU, 64U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 64U; i++)
{
uint8_t xi = opad[i];
uint8_t yi = key_block[i];
opad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint32_t s[5U] = { 0x67452301U, 0xefcdab89U, 0x98badcfeU, 0x10325476U, 0xc3d2e1f0U };
uint8_t *dst1 = ipad;
if (data_len == 0U)
{
Hacl_Hash_SHA1_update_last(s, 0ULL, ipad, 64U);
}
else
{
uint32_t block_len = 64U;
uint32_t n_blocks0 = data_len / block_len;
uint32_t rem0 = data_len % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = data_len - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = data;
uint8_t *rem = data + full_blocks_len;
Hacl_Hash_SHA1_update_multi(s, ipad, 1U);
Hacl_Hash_SHA1_update_multi(s, full_blocks, n_blocks);
Hacl_Hash_SHA1_update_last(s, (uint64_t)64U + (uint64_t)full_blocks_len, rem, rem_len);
}
Hacl_Hash_SHA1_finish(s, dst1);
uint8_t *hash1 = ipad;
Hacl_Hash_SHA1_init(s);
uint32_t block_len = 64U;
uint32_t n_blocks0 = 20U / block_len;
uint32_t rem0 = 20U % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = 20U - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = hash1;
uint8_t *rem = hash1 + full_blocks_len;
Hacl_Hash_SHA1_update_multi(s, opad, 1U);
Hacl_Hash_SHA1_update_multi(s, full_blocks, n_blocks);
Hacl_Hash_SHA1_update_last(s, (uint64_t)64U + (uint64_t)full_blocks_len, rem, rem_len);
Hacl_Hash_SHA1_finish(s, dst);
}
/**
Write the HMAC-SHA-2-224 MAC of a message (`data`) by using a key (`key`) into `dst`.
The key can be any length and will be hashed if it is longer and padded if it is shorter than 64 bytes.
`dst` must point to 28 bytes of memory.
*/
void
Hacl_HMAC_compute_sha2_224(
uint8_t *dst,
uint8_t *key,
uint32_t key_len,
uint8_t *data,
uint32_t data_len
)
{
uint8_t key_block[64U];
memset(key_block, 0U, 64U * sizeof (uint8_t));
uint8_t *nkey = key_block;
uint32_t ite;
if (key_len <= 64U)
{
ite = key_len;
}
else
{
ite = 28U;
}
uint8_t *zeroes = key_block + ite;
KRML_MAYBE_UNUSED_VAR(zeroes);
if (key_len <= 64U)
{
memcpy(nkey, key, key_len * sizeof (uint8_t));
}
else
{
Hacl_Hash_SHA2_hash_224(nkey, key, key_len);
}
uint8_t ipad[64U];
memset(ipad, 0x36U, 64U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 64U; i++)
{
uint8_t xi = ipad[i];
uint8_t yi = key_block[i];
ipad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint8_t opad[64U];
memset(opad, 0x5cU, 64U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 64U; i++)
{
uint8_t xi = opad[i];
uint8_t yi = key_block[i];
opad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint32_t st[8U] = { 0U };
KRML_MAYBE_FOR8(i,
0U,
8U,
1U,
uint32_t *os = st;
uint32_t x = Hacl_Hash_SHA2_h224[i];
os[i] = x;);
uint32_t *s = st;
uint8_t *dst1 = ipad;
if (data_len == 0U)
{
Hacl_Hash_SHA2_sha224_update_last(0ULL + (uint64_t)64U, 64U, ipad, s);
}
else
{
uint32_t block_len = 64U;
uint32_t n_blocks0 = data_len / block_len;
uint32_t rem0 = data_len % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = data_len - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = data;
uint8_t *rem = data + full_blocks_len;
Hacl_Hash_SHA2_sha224_update_nblocks(64U, ipad, s);
Hacl_Hash_SHA2_sha224_update_nblocks(n_blocks * 64U, full_blocks, s);
Hacl_Hash_SHA2_sha224_update_last((uint64_t)64U + (uint64_t)full_blocks_len + (uint64_t)rem_len,
rem_len,
rem,
s);
}
Hacl_Hash_SHA2_sha224_finish(s, dst1);
uint8_t *hash1 = ipad;
Hacl_Hash_SHA2_sha224_init(s);
uint32_t block_len = 64U;
uint32_t n_blocks0 = 28U / block_len;
uint32_t rem0 = 28U % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = 28U - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = hash1;
uint8_t *rem = hash1 + full_blocks_len;
Hacl_Hash_SHA2_sha224_update_nblocks(64U, opad, s);
Hacl_Hash_SHA2_sha224_update_nblocks(n_blocks * 64U, full_blocks, s);
Hacl_Hash_SHA2_sha224_update_last((uint64_t)64U + (uint64_t)full_blocks_len + (uint64_t)rem_len,
rem_len,
rem,
s);
Hacl_Hash_SHA2_sha224_finish(s, dst);
}
/**
Write the HMAC-SHA-2-256 MAC of a message (`data`) by using a key (`key`) into `dst`.
The key can be any length and will be hashed if it is longer and padded if it is shorter than 64 bytes.
`dst` must point to 32 bytes of memory.
*/
void
Hacl_HMAC_compute_sha2_256(
uint8_t *dst,
uint8_t *key,
uint32_t key_len,
uint8_t *data,
uint32_t data_len
)
{
uint8_t key_block[64U];
memset(key_block, 0U, 64U * sizeof (uint8_t));
uint8_t *nkey = key_block;
uint32_t ite;
if (key_len <= 64U)
{
ite = key_len;
}
else
{
ite = 32U;
}
uint8_t *zeroes = key_block + ite;
KRML_MAYBE_UNUSED_VAR(zeroes);
if (key_len <= 64U)
{
memcpy(nkey, key, key_len * sizeof (uint8_t));
}
else
{
Hacl_Hash_SHA2_hash_256(nkey, key, key_len);
}
uint8_t ipad[64U];
memset(ipad, 0x36U, 64U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 64U; i++)
{
uint8_t xi = ipad[i];
uint8_t yi = key_block[i];
ipad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint8_t opad[64U];
memset(opad, 0x5cU, 64U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 64U; i++)
{
uint8_t xi = opad[i];
uint8_t yi = key_block[i];
opad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint32_t st[8U] = { 0U };
KRML_MAYBE_FOR8(i,
0U,
8U,
1U,
uint32_t *os = st;
uint32_t x = Hacl_Hash_SHA2_h256[i];
os[i] = x;);
uint32_t *s = st;
uint8_t *dst1 = ipad;
if (data_len == 0U)
{
Hacl_Hash_SHA2_sha256_update_last(0ULL + (uint64_t)64U, 64U, ipad, s);
}
else
{
uint32_t block_len = 64U;
uint32_t n_blocks0 = data_len / block_len;
uint32_t rem0 = data_len % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = data_len - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = data;
uint8_t *rem = data + full_blocks_len;
Hacl_Hash_SHA2_sha256_update_nblocks(64U, ipad, s);
Hacl_Hash_SHA2_sha256_update_nblocks(n_blocks * 64U, full_blocks, s);
Hacl_Hash_SHA2_sha256_update_last((uint64_t)64U + (uint64_t)full_blocks_len + (uint64_t)rem_len,
rem_len,
rem,
s);
}
Hacl_Hash_SHA2_sha256_finish(s, dst1);
uint8_t *hash1 = ipad;
Hacl_Hash_SHA2_sha256_init(s);
uint32_t block_len = 64U;
uint32_t n_blocks0 = 32U / block_len;
uint32_t rem0 = 32U % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = 32U - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = hash1;
uint8_t *rem = hash1 + full_blocks_len;
Hacl_Hash_SHA2_sha256_update_nblocks(64U, opad, s);
Hacl_Hash_SHA2_sha256_update_nblocks(n_blocks * 64U, full_blocks, s);
Hacl_Hash_SHA2_sha256_update_last((uint64_t)64U + (uint64_t)full_blocks_len + (uint64_t)rem_len,
rem_len,
rem,
s);
Hacl_Hash_SHA2_sha256_finish(s, dst);
}
/**
Write the HMAC-SHA-2-384 MAC of a message (`data`) by using a key (`key`) into `dst`.
The key can be any length and will be hashed if it is longer and padded if it is shorter than 128 bytes.
`dst` must point to 48 bytes of memory.
*/
void
Hacl_HMAC_compute_sha2_384(
uint8_t *dst,
uint8_t *key,
uint32_t key_len,
uint8_t *data,
uint32_t data_len
)
{
uint8_t key_block[128U];
memset(key_block, 0U, 128U * sizeof (uint8_t));
uint8_t *nkey = key_block;
uint32_t ite;
if (key_len <= 128U)
{
ite = key_len;
}
else
{
ite = 48U;
}
uint8_t *zeroes = key_block + ite;
KRML_MAYBE_UNUSED_VAR(zeroes);
if (key_len <= 128U)
{
memcpy(nkey, key, key_len * sizeof (uint8_t));
}
else
{
Hacl_Hash_SHA2_hash_384(nkey, key, key_len);
}
uint8_t ipad[128U];
memset(ipad, 0x36U, 128U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 128U; i++)
{
uint8_t xi = ipad[i];
uint8_t yi = key_block[i];
ipad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint8_t opad[128U];
memset(opad, 0x5cU, 128U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 128U; i++)
{
uint8_t xi = opad[i];
uint8_t yi = key_block[i];
opad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint64_t st[8U] = { 0U };
KRML_MAYBE_FOR8(i,
0U,
8U,
1U,
uint64_t *os = st;
uint64_t x = Hacl_Hash_SHA2_h384[i];
os[i] = x;);
uint64_t *s = st;
uint8_t *dst1 = ipad;
if (data_len == 0U)
{
Hacl_Hash_SHA2_sha384_update_last(FStar_UInt128_add(FStar_UInt128_uint64_to_uint128(0ULL),
FStar_UInt128_uint64_to_uint128((uint64_t)128U)),
128U,
ipad,
s);
}
else
{
uint32_t block_len = 128U;
uint32_t n_blocks0 = data_len / block_len;
uint32_t rem0 = data_len % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = data_len - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = data;
uint8_t *rem = data + full_blocks_len;
Hacl_Hash_SHA2_sha384_update_nblocks(128U, ipad, s);
Hacl_Hash_SHA2_sha384_update_nblocks(n_blocks * 128U, full_blocks, s);
Hacl_Hash_SHA2_sha384_update_last(FStar_UInt128_add(FStar_UInt128_add(FStar_UInt128_uint64_to_uint128((uint64_t)128U),
FStar_UInt128_uint64_to_uint128((uint64_t)full_blocks_len)),
FStar_UInt128_uint64_to_uint128((uint64_t)rem_len)),
rem_len,
rem,
s);
}
Hacl_Hash_SHA2_sha384_finish(s, dst1);
uint8_t *hash1 = ipad;
Hacl_Hash_SHA2_sha384_init(s);
uint32_t block_len = 128U;
uint32_t n_blocks0 = 48U / block_len;
uint32_t rem0 = 48U % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = 48U - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = hash1;
uint8_t *rem = hash1 + full_blocks_len;
Hacl_Hash_SHA2_sha384_update_nblocks(128U, opad, s);
Hacl_Hash_SHA2_sha384_update_nblocks(n_blocks * 128U, full_blocks, s);
Hacl_Hash_SHA2_sha384_update_last(FStar_UInt128_add(FStar_UInt128_add(FStar_UInt128_uint64_to_uint128((uint64_t)128U),
FStar_UInt128_uint64_to_uint128((uint64_t)full_blocks_len)),
FStar_UInt128_uint64_to_uint128((uint64_t)rem_len)),
rem_len,
rem,
s);
Hacl_Hash_SHA2_sha384_finish(s, dst);
}
/**
Write the HMAC-SHA-2-512 MAC of a message (`data`) by using a key (`key`) into `dst`.
The key can be any length and will be hashed if it is longer and padded if it is shorter than 128 bytes.
`dst` must point to 64 bytes of memory.
*/
void
Hacl_HMAC_compute_sha2_512(
uint8_t *dst,
uint8_t *key,
uint32_t key_len,
uint8_t *data,
uint32_t data_len
)
{
uint8_t key_block[128U];
memset(key_block, 0U, 128U * sizeof (uint8_t));
uint8_t *nkey = key_block;
uint32_t ite;
if (key_len <= 128U)
{
ite = key_len;
}
else
{
ite = 64U;
}
uint8_t *zeroes = key_block + ite;
KRML_MAYBE_UNUSED_VAR(zeroes);
if (key_len <= 128U)
{
memcpy(nkey, key, key_len * sizeof (uint8_t));
}
else
{
Hacl_Hash_SHA2_hash_512(nkey, key, key_len);
}
uint8_t ipad[128U];
memset(ipad, 0x36U, 128U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 128U; i++)
{
uint8_t xi = ipad[i];
uint8_t yi = key_block[i];
ipad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint8_t opad[128U];
memset(opad, 0x5cU, 128U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 128U; i++)
{
uint8_t xi = opad[i];
uint8_t yi = key_block[i];
opad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint64_t st[8U] = { 0U };
KRML_MAYBE_FOR8(i,
0U,
8U,
1U,
uint64_t *os = st;
uint64_t x = Hacl_Hash_SHA2_h512[i];
os[i] = x;);
uint64_t *s = st;
uint8_t *dst1 = ipad;
if (data_len == 0U)
{
Hacl_Hash_SHA2_sha512_update_last(FStar_UInt128_add(FStar_UInt128_uint64_to_uint128(0ULL),
FStar_UInt128_uint64_to_uint128((uint64_t)128U)),
128U,
ipad,
s);
}
else
{
uint32_t block_len = 128U;
uint32_t n_blocks0 = data_len / block_len;
uint32_t rem0 = data_len % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = data_len - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = data;
uint8_t *rem = data + full_blocks_len;
Hacl_Hash_SHA2_sha512_update_nblocks(128U, ipad, s);
Hacl_Hash_SHA2_sha512_update_nblocks(n_blocks * 128U, full_blocks, s);
Hacl_Hash_SHA2_sha512_update_last(FStar_UInt128_add(FStar_UInt128_add(FStar_UInt128_uint64_to_uint128((uint64_t)128U),
FStar_UInt128_uint64_to_uint128((uint64_t)full_blocks_len)),
FStar_UInt128_uint64_to_uint128((uint64_t)rem_len)),
rem_len,
rem,
s);
}
Hacl_Hash_SHA2_sha512_finish(s, dst1);
uint8_t *hash1 = ipad;
Hacl_Hash_SHA2_sha512_init(s);
uint32_t block_len = 128U;
uint32_t n_blocks0 = 64U / block_len;
uint32_t rem0 = 64U % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = 64U - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = hash1;
uint8_t *rem = hash1 + full_blocks_len;
Hacl_Hash_SHA2_sha512_update_nblocks(128U, opad, s);
Hacl_Hash_SHA2_sha512_update_nblocks(n_blocks * 128U, full_blocks, s);
Hacl_Hash_SHA2_sha512_update_last(FStar_UInt128_add(FStar_UInt128_add(FStar_UInt128_uint64_to_uint128((uint64_t)128U),
FStar_UInt128_uint64_to_uint128((uint64_t)full_blocks_len)),
FStar_UInt128_uint64_to_uint128((uint64_t)rem_len)),
rem_len,
rem,
s);
Hacl_Hash_SHA2_sha512_finish(s, dst);
}
/**
Write the HMAC-SHA-3-224 MAC of a message (`data`) by using a key (`key`) into `dst`.
The key can be any length and will be hashed if it is longer and padded if it is shorter than 144 bytes.
`dst` must point to 28 bytes of memory.
*/
void
Hacl_HMAC_compute_sha3_224(
uint8_t *dst,
uint8_t *key,
uint32_t key_len,
uint8_t *data,
uint32_t data_len
)
{
uint8_t key_block[144U];
memset(key_block, 0U, 144U * sizeof (uint8_t));
uint8_t *nkey = key_block;
uint32_t ite;
if (key_len <= 144U)
{
ite = key_len;
}
else
{
ite = 28U;
}
uint8_t *zeroes = key_block + ite;
KRML_MAYBE_UNUSED_VAR(zeroes);
if (key_len <= 144U)
{
memcpy(nkey, key, key_len * sizeof (uint8_t));
}
else
{
Hacl_Hash_SHA3_sha3_224(nkey, key, key_len);
}
uint8_t ipad[144U];
memset(ipad, 0x36U, 144U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 144U; i++)
{
uint8_t xi = ipad[i];
uint8_t yi = key_block[i];
ipad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint8_t opad[144U];
memset(opad, 0x5cU, 144U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 144U; i++)
{
uint8_t xi = opad[i];
uint8_t yi = key_block[i];
opad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint64_t s[25U] = { 0U };
uint8_t *dst1 = ipad;
if (data_len == 0U)
{
Hacl_Hash_SHA3_update_last_sha3(Spec_Hash_Definitions_SHA3_224, s, ipad, 144U);
}
else
{
uint32_t block_len = 144U;
uint32_t n_blocks0 = data_len / block_len;
uint32_t rem0 = data_len % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = data_len - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = data;
uint8_t *rem = data + full_blocks_len;
Hacl_Hash_SHA3_update_multi_sha3(Spec_Hash_Definitions_SHA3_224, s, ipad, 1U);
Hacl_Hash_SHA3_update_multi_sha3(Spec_Hash_Definitions_SHA3_224, s, full_blocks, n_blocks);
Hacl_Hash_SHA3_update_last_sha3(Spec_Hash_Definitions_SHA3_224, s, rem, rem_len);
}
uint32_t remOut = 28U;
uint8_t hbuf0[256U] = { 0U };
uint64_t ws0[32U] = { 0U };
memcpy(ws0, s, 25U * sizeof (uint64_t));
for (uint32_t i = 0U; i < 32U; i++)
{
store64_le(hbuf0 + i * 8U, ws0[i]);
}
memcpy(dst1 + 28U - remOut, hbuf0, remOut * sizeof (uint8_t));
uint8_t *hash1 = ipad;
Hacl_Hash_SHA3_init_(Spec_Hash_Definitions_SHA3_224, s);
uint32_t block_len = 144U;
uint32_t n_blocks0 = 28U / block_len;
uint32_t rem0 = 28U % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = 28U - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = hash1;
uint8_t *rem = hash1 + full_blocks_len;
Hacl_Hash_SHA3_update_multi_sha3(Spec_Hash_Definitions_SHA3_224, s, opad, 1U);
Hacl_Hash_SHA3_update_multi_sha3(Spec_Hash_Definitions_SHA3_224, s, full_blocks, n_blocks);
Hacl_Hash_SHA3_update_last_sha3(Spec_Hash_Definitions_SHA3_224, s, rem, rem_len);
uint32_t remOut0 = 28U;
uint8_t hbuf[256U] = { 0U };
uint64_t ws[32U] = { 0U };
memcpy(ws, s, 25U * sizeof (uint64_t));
for (uint32_t i = 0U; i < 32U; i++)
{
store64_le(hbuf + i * 8U, ws[i]);
}
memcpy(dst + 28U - remOut0, hbuf, remOut0 * sizeof (uint8_t));
}
/**
Write the HMAC-SHA-3-256 MAC of a message (`data`) by using a key (`key`) into `dst`.
The key can be any length and will be hashed if it is longer and padded if it is shorter than 136 bytes.
`dst` must point to 32 bytes of memory.
*/
void
Hacl_HMAC_compute_sha3_256(
uint8_t *dst,
uint8_t *key,
uint32_t key_len,
uint8_t *data,
uint32_t data_len
)
{
uint8_t key_block[136U];
memset(key_block, 0U, 136U * sizeof (uint8_t));
uint8_t *nkey = key_block;
uint32_t ite;
if (key_len <= 136U)
{
ite = key_len;
}
else
{
ite = 32U;
}
uint8_t *zeroes = key_block + ite;
KRML_MAYBE_UNUSED_VAR(zeroes);
if (key_len <= 136U)
{
memcpy(nkey, key, key_len * sizeof (uint8_t));
}
else
{
Hacl_Hash_SHA3_sha3_256(nkey, key, key_len);
}
uint8_t ipad[136U];
memset(ipad, 0x36U, 136U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 136U; i++)
{
uint8_t xi = ipad[i];
uint8_t yi = key_block[i];
ipad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint8_t opad[136U];
memset(opad, 0x5cU, 136U * sizeof (uint8_t));
for (uint32_t i = 0U; i < 136U; i++)
{
uint8_t xi = opad[i];
uint8_t yi = key_block[i];
opad[i] = (uint32_t)xi ^ (uint32_t)yi;
}
uint64_t s[25U] = { 0U };
uint8_t *dst1 = ipad;
if (data_len == 0U)
{
Hacl_Hash_SHA3_update_last_sha3(Spec_Hash_Definitions_SHA3_256, s, ipad, 136U);
}
else
{
uint32_t block_len = 136U;
uint32_t n_blocks0 = data_len / block_len;
uint32_t rem0 = data_len % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks_, .snd = data_len - n_blocks_ * block_len });
}
else
{
scrut = ((K___uint32_t_uint32_t){ .fst = n_blocks0, .snd = rem0 });
}
uint32_t n_blocks = scrut.fst;
uint32_t rem_len = scrut.snd;
uint32_t full_blocks_len = n_blocks * block_len;
uint8_t *full_blocks = data;
uint8_t *rem = data + full_blocks_len;
Hacl_Hash_SHA3_update_multi_sha3(Spec_Hash_Definitions_SHA3_256, s, ipad, 1U);
Hacl_Hash_SHA3_update_multi_sha3(Spec_Hash_Definitions_SHA3_256, s, full_blocks, n_blocks);
Hacl_Hash_SHA3_update_last_sha3(Spec_Hash_Definitions_SHA3_256, s, rem, rem_len);
}
uint32_t remOut = 32U;
uint8_t hbuf0[256U] = { 0U };
uint64_t ws0[32U] = { 0U };
memcpy(ws0, s, 25U * sizeof (uint64_t));
for (uint32_t i = 0U; i < 32U; i++)
{
store64_le(hbuf0 + i * 8U, ws0[i]);
}
memcpy(dst1 + 32U - remOut, hbuf0, remOut * sizeof (uint8_t));
uint8_t *hash1 = ipad;
Hacl_Hash_SHA3_init_(Spec_Hash_Definitions_SHA3_256, s);
uint32_t block_len = 136U;
uint32_t n_blocks0 = 32U / block_len;
uint32_t rem0 = 32U % block_len;
K___uint32_t_uint32_t scrut;
if (n_blocks0 > 0U && rem0 == 0U)
{
uint32_t n_blocks_ = n_blocks0 - 1U;