mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-07 15:03:34 +00:00
This change makes SSL virtual hosting possible. You can now load
multiple certificates for multiple domains and redbean will just
figure out which one to use, even if you only have 1 ip address.
You can also use a jumbo certificate that lists all your domains
in the the subject alternative names.
This change also makes performance improvements to MbedTLS. Here
are some benchmarks vs. cc1920749e
BEFORE AFTER (microsecs)
suite_ssl.com 2512881 191738 13.11x faster
suite_pkparse.com 36291 3295 11.01x faster
suite_x509parse.com 854669 120293 7.10x faster
suite_pkwrite.com 6549 1265 5.18x faster
suite_ecdsa.com 53347 18778 2.84x faster
suite_pk.com 49051 18717 2.62x faster
suite_ecdh.com 19535 9502 2.06x faster
suite_shax.com 15848 7965 1.99x faster
suite_rsa.com 353257 184828 1.91x faster
suite_x509write.com 162646 85733 1.90x faster
suite_ecp.com 20503 11050 1.86x faster
suite_hmac_drbg.no_reseed.com 19528 11417 1.71x faster
suite_hmac_drbg.nopr.com 12460 8010 1.56x faster
suite_mpi.com 687124 442661 1.55x faster
suite_hmac_drbg.pr.com 11890 7752 1.53x faster
There aren't any special tricks to the performance imporvements.
It's mostly due to code cleanup, assembly and intel instructions
like mulx, adox, and adcx.
738 lines
25 KiB
C
738 lines
25 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:4;coding:utf-8 -*-│
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright The Mbed TLS Contributors │
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|
│ │
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│ Licensed under the Apache License, Version 2.0 (the "License"); │
|
|
│ you may not use this file except in compliance with the License. │
|
|
│ You may obtain a copy of the License at │
|
|
│ │
|
|
│ http://www.apache.org/licenses/LICENSE-2.0 │
|
|
│ │
|
|
│ Unless required by applicable law or agreed to in writing, software │
|
|
│ distributed under the License is distributed on an "AS IS" BASIS, │
|
|
│ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. │
|
|
│ See the License for the specific language governing permissions and │
|
|
│ limitations under the License. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "third_party/mbedtls/common.h"
|
|
#include "third_party/mbedtls/endian.h"
|
|
#include "third_party/mbedtls/error.h"
|
|
#include "third_party/mbedtls/nist_kw.h"
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#include "third_party/mbedtls/platform.h"
|
|
|
|
asm(".ident\t\"\\n\\n\
|
|
Mbed TLS (Apache 2.0)\\n\
|
|
Copyright ARM Limited\\n\
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|
Copyright Mbed TLS Contributors\"");
|
|
asm(".include \"libc/disclaimer.inc\"");
|
|
|
|
/* clang-format off */
|
|
/*
|
|
* Implementation of NIST SP 800-38F key wrapping, supporting KW and KWP modes
|
|
* only
|
|
*
|
|
* Copyright The Mbed TLS Contributors
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
* not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
/*
|
|
* Definition of Key Wrapping:
|
|
* https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-38F.pdf
|
|
* RFC 3394 "Advanced Encryption Standard (AES) Key Wrap Algorithm"
|
|
* RFC 5649 "Advanced Encryption Standard (AES) Key Wrap with Padding Algorithm"
|
|
*
|
|
* Note: RFC 3394 defines different methodology for intermediate operations for
|
|
* the wrapping and unwrapping operation than the definition in NIST SP 800-38F.
|
|
*/
|
|
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|
#if !defined(MBEDTLS_NIST_KW_ALT)
|
|
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|
#define KW_SEMIBLOCK_LENGTH 8
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#define MIN_SEMIBLOCKS_COUNT 3
|
|
|
|
/* constant-time buffer comparison */
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|
static inline unsigned char mbedtls_nist_kw_safer_memcmp( const void *a, const void *b, size_t n )
|
|
{
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|
size_t i;
|
|
volatile const unsigned char *A = (volatile const unsigned char *) a;
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|
volatile const unsigned char *B = (volatile const unsigned char *) b;
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|
volatile unsigned char diff = 0;
|
|
|
|
for( i = 0; i < n; i++ )
|
|
{
|
|
/* Read volatile data in order before computing diff.
|
|
* This avoids IAR compiler warning:
|
|
* 'the order of volatile accesses is undefined ..' */
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|
unsigned char x = A[i], y = B[i];
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|
diff |= x ^ y;
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|
}
|
|
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|
return( diff );
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|
}
|
|
|
|
/*! The 64-bit default integrity check value (ICV) for KW mode. */
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|
static const unsigned char NIST_KW_ICV1[] = {0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6};
|
|
/*! The 32-bit default integrity check value (ICV) for KWP mode. */
|
|
static const unsigned char NIST_KW_ICV2[] = {0xA6, 0x59, 0x59, 0xA6};
|
|
|
|
/*
|
|
* Initialize context
|
|
*/
|
|
void mbedtls_nist_kw_init( mbedtls_nist_kw_context *ctx )
|
|
{
|
|
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_nist_kw_context ) );
|
|
}
|
|
|
|
int mbedtls_nist_kw_setkey( mbedtls_nist_kw_context *ctx,
|
|
mbedtls_cipher_id_t cipher,
|
|
const unsigned char *key,
|
|
unsigned int keybits,
|
|
const int is_wrap )
|
|
{
|
|
int ret = MBEDTLS_ERR_THIS_CORRUPTION;
|
|
const mbedtls_cipher_info_t *cipher_info;
|
|
|
|
cipher_info = mbedtls_cipher_info_from_values( cipher,
|
|
keybits,
|
|
MBEDTLS_MODE_ECB );
|
|
if( cipher_info == NULL )
|
|
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
|
|
|
if( cipher_info->block_size != 16 )
|
|
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
|
|
|
/*
|
|
* SP 800-38F currently defines AES cipher as the only block cipher allowed:
|
|
* "For KW and KWP, the underlying block cipher shall be approved, and the
|
|
* block size shall be 128 bits. Currently, the AES block cipher, with key
|
|
* lengths of 128, 192, or 256 bits, is the only block cipher that fits
|
|
* this profile."
|
|
* Currently we don't support other 128 bit block ciphers for key wrapping,
|
|
* such as Camellia and Aria.
|
|
*/
|
|
if( cipher != MBEDTLS_CIPHER_ID_AES )
|
|
return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
|
|
|
|
mbedtls_cipher_free( &ctx->cipher_ctx );
|
|
|
|
if( ( ret = mbedtls_cipher_setup( &ctx->cipher_ctx, cipher_info ) ) != 0 )
|
|
return( ret );
|
|
|
|
if( ( ret = mbedtls_cipher_setkey( &ctx->cipher_ctx, key, keybits,
|
|
is_wrap ? MBEDTLS_ENCRYPT :
|
|
MBEDTLS_DECRYPT )
|
|
) != 0 )
|
|
{
|
|
return( ret );
|
|
}
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/*
|
|
* Free context
|
|
*/
|
|
void mbedtls_nist_kw_free( mbedtls_nist_kw_context *ctx )
|
|
{
|
|
mbedtls_cipher_free( &ctx->cipher_ctx );
|
|
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_nist_kw_context ) );
|
|
}
|
|
|
|
/*
|
|
* Helper function for Xoring the uint64_t "t" with the encrypted A.
|
|
* Defined in NIST SP 800-38F section 6.1
|
|
*/
|
|
static void calc_a_xor_t( unsigned char A[KW_SEMIBLOCK_LENGTH], uint64_t t )
|
|
{
|
|
size_t i = 0;
|
|
for( i = 0; i < sizeof( t ); i++ )
|
|
{
|
|
A[i] ^= ( t >> ( ( sizeof( t ) - 1 - i ) * 8 ) ) & 0xff;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* KW-AE as defined in SP 800-38F section 6.2
|
|
* KWP-AE as defined in SP 800-38F section 6.3
|
|
*/
|
|
int mbedtls_nist_kw_wrap( mbedtls_nist_kw_context *ctx,
|
|
mbedtls_nist_kw_mode_t mode,
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|
const unsigned char *input, size_t in_len,
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|
unsigned char *output, size_t *out_len, size_t out_size )
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|
{
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|
int ret = 0;
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|
size_t semiblocks = 0;
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size_t s;
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|
size_t olen, padlen = 0;
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|
uint64_t t = 0;
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unsigned char outbuff[KW_SEMIBLOCK_LENGTH * 2];
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|
unsigned char inbuff[KW_SEMIBLOCK_LENGTH * 2];
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|
unsigned char *R2 = output + KW_SEMIBLOCK_LENGTH;
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|
unsigned char *A = output;
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|
*out_len = 0;
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/*
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* Generate the String to work on
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*/
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if( mode == MBEDTLS_KW_MODE_KW )
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{
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|
if( out_size < in_len + KW_SEMIBLOCK_LENGTH )
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|
{
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|
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
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|
}
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|
|
/*
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|
* According to SP 800-38F Table 1, the plaintext length for KW
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|
* must be between 2 to 2^54-1 semiblocks inclusive.
|
|
*/
|
|
if( in_len < 16 ||
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|
#if SIZE_MAX > 0x1FFFFFFFFFFFFF8
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|
in_len > 0x1FFFFFFFFFFFFF8 ||
|
|
#endif
|
|
in_len % KW_SEMIBLOCK_LENGTH != 0 )
|
|
{
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|
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
|
}
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|
memcpy( output, NIST_KW_ICV1, KW_SEMIBLOCK_LENGTH );
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|
memmove( output + KW_SEMIBLOCK_LENGTH, input, in_len );
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|
}
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|
else
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|
{
|
|
if( in_len % 8 != 0 )
|
|
{
|
|
padlen = ( 8 - ( in_len % 8 ) );
|
|
}
|
|
|
|
if( out_size < in_len + KW_SEMIBLOCK_LENGTH + padlen )
|
|
{
|
|
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
|
}
|
|
|
|
/*
|
|
* According to SP 800-38F Table 1, the plaintext length for KWP
|
|
* must be between 1 and 2^32-1 octets inclusive.
|
|
*/
|
|
if( in_len < 1
|
|
#if SIZE_MAX > 0xFFFFFFFF
|
|
|| in_len > 0xFFFFFFFF
|
|
#endif
|
|
)
|
|
{
|
|
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
|
}
|
|
|
|
memcpy( output, NIST_KW_ICV2, KW_SEMIBLOCK_LENGTH / 2 );
|
|
PUT_UINT32_BE( ( in_len & 0xffffffff ), output,
|
|
KW_SEMIBLOCK_LENGTH / 2 );
|
|
|
|
memcpy( output + KW_SEMIBLOCK_LENGTH, input, in_len );
|
|
memset( output + KW_SEMIBLOCK_LENGTH + in_len, 0, padlen );
|
|
}
|
|
semiblocks = ( ( in_len + padlen ) / KW_SEMIBLOCK_LENGTH ) + 1;
|
|
|
|
s = 6 * ( semiblocks - 1 );
|
|
|
|
if( mode == MBEDTLS_KW_MODE_KWP
|
|
&& in_len <= KW_SEMIBLOCK_LENGTH )
|
|
{
|
|
memcpy( inbuff, output, 16 );
|
|
ret = mbedtls_cipher_update( &ctx->cipher_ctx,
|
|
inbuff, 16, output, &olen );
|
|
if( ret != 0 )
|
|
goto cleanup;
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Do the wrapping function W, as defined in RFC 3394 section 2.2.1
|
|
*/
|
|
if( semiblocks < MIN_SEMIBLOCKS_COUNT )
|
|
{
|
|
ret = MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
|
|
goto cleanup;
|
|
}
|
|
|
|
/* Calculate intermediate values */
|
|
for( t = 1; t <= s; t++ )
|
|
{
|
|
memcpy( inbuff, A, KW_SEMIBLOCK_LENGTH );
|
|
memcpy( inbuff + KW_SEMIBLOCK_LENGTH, R2, KW_SEMIBLOCK_LENGTH );
|
|
|
|
ret = mbedtls_cipher_update( &ctx->cipher_ctx,
|
|
inbuff, 16, outbuff, &olen );
|
|
if( ret != 0 )
|
|
goto cleanup;
|
|
|
|
memcpy( A, outbuff, KW_SEMIBLOCK_LENGTH );
|
|
calc_a_xor_t( A, t );
|
|
|
|
memcpy( R2, outbuff + KW_SEMIBLOCK_LENGTH, KW_SEMIBLOCK_LENGTH );
|
|
R2 += KW_SEMIBLOCK_LENGTH;
|
|
if( R2 >= output + ( semiblocks * KW_SEMIBLOCK_LENGTH ) )
|
|
R2 = output + KW_SEMIBLOCK_LENGTH;
|
|
}
|
|
}
|
|
|
|
*out_len = semiblocks * KW_SEMIBLOCK_LENGTH;
|
|
|
|
cleanup:
|
|
|
|
if( ret != 0)
|
|
{
|
|
mbedtls_platform_zeroize( output, semiblocks * KW_SEMIBLOCK_LENGTH );
|
|
}
|
|
mbedtls_platform_zeroize( inbuff, KW_SEMIBLOCK_LENGTH * 2 );
|
|
mbedtls_platform_zeroize( outbuff, KW_SEMIBLOCK_LENGTH * 2 );
|
|
|
|
return( ret );
|
|
}
|
|
|
|
/*
|
|
* W-1 function as defined in RFC 3394 section 2.2.2
|
|
* This function assumes the following:
|
|
* 1. Output buffer is at least of size ( semiblocks - 1 ) * KW_SEMIBLOCK_LENGTH.
|
|
* 2. The input buffer is of size semiblocks * KW_SEMIBLOCK_LENGTH.
|
|
* 3. Minimal number of semiblocks is 3.
|
|
* 4. A is a buffer to hold the first semiblock of the input buffer.
|
|
*/
|
|
static int unwrap( mbedtls_nist_kw_context *ctx,
|
|
const unsigned char *input, size_t semiblocks,
|
|
unsigned char A[KW_SEMIBLOCK_LENGTH],
|
|
unsigned char *output, size_t* out_len )
|
|
{
|
|
int ret = 0;
|
|
const size_t s = 6 * ( semiblocks - 1 );
|
|
size_t olen;
|
|
uint64_t t = 0;
|
|
unsigned char outbuff[KW_SEMIBLOCK_LENGTH * 2];
|
|
unsigned char inbuff[KW_SEMIBLOCK_LENGTH * 2];
|
|
unsigned char *R = output + ( semiblocks - 2 ) * KW_SEMIBLOCK_LENGTH;
|
|
*out_len = 0;
|
|
|
|
if( semiblocks < MIN_SEMIBLOCKS_COUNT )
|
|
{
|
|
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
|
}
|
|
|
|
memcpy( A, input, KW_SEMIBLOCK_LENGTH );
|
|
memmove( output, input + KW_SEMIBLOCK_LENGTH, ( semiblocks - 1 ) * KW_SEMIBLOCK_LENGTH );
|
|
|
|
/* Calculate intermediate values */
|
|
for( t = s; t >= 1; t-- )
|
|
{
|
|
calc_a_xor_t( A, t );
|
|
|
|
memcpy( inbuff, A, KW_SEMIBLOCK_LENGTH );
|
|
memcpy( inbuff + KW_SEMIBLOCK_LENGTH, R, KW_SEMIBLOCK_LENGTH );
|
|
|
|
ret = mbedtls_cipher_update( &ctx->cipher_ctx,
|
|
inbuff, 16, outbuff, &olen );
|
|
if( ret != 0 )
|
|
goto cleanup;
|
|
|
|
memcpy( A, outbuff, KW_SEMIBLOCK_LENGTH );
|
|
|
|
/* Set R as LSB64 of outbuff */
|
|
memcpy( R, outbuff + KW_SEMIBLOCK_LENGTH, KW_SEMIBLOCK_LENGTH );
|
|
|
|
if( R == output )
|
|
R = output + ( semiblocks - 2 ) * KW_SEMIBLOCK_LENGTH;
|
|
else
|
|
R -= KW_SEMIBLOCK_LENGTH;
|
|
}
|
|
|
|
*out_len = ( semiblocks - 1 ) * KW_SEMIBLOCK_LENGTH;
|
|
|
|
cleanup:
|
|
if( ret != 0)
|
|
mbedtls_platform_zeroize( output, ( semiblocks - 1 ) * KW_SEMIBLOCK_LENGTH );
|
|
mbedtls_platform_zeroize( inbuff, sizeof( inbuff ) );
|
|
mbedtls_platform_zeroize( outbuff, sizeof( outbuff ) );
|
|
|
|
return( ret );
|
|
}
|
|
|
|
/*
|
|
* KW-AD as defined in SP 800-38F section 6.2
|
|
* KWP-AD as defined in SP 800-38F section 6.3
|
|
*/
|
|
int mbedtls_nist_kw_unwrap( mbedtls_nist_kw_context *ctx,
|
|
mbedtls_nist_kw_mode_t mode,
|
|
const unsigned char *input, size_t in_len,
|
|
unsigned char *output, size_t *out_len, size_t out_size )
|
|
{
|
|
int ret = 0;
|
|
size_t i, olen;
|
|
unsigned char A[KW_SEMIBLOCK_LENGTH];
|
|
unsigned char diff, bad_padding = 0;
|
|
|
|
*out_len = 0;
|
|
if( out_size < in_len - KW_SEMIBLOCK_LENGTH )
|
|
{
|
|
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
|
}
|
|
|
|
if( mode == MBEDTLS_KW_MODE_KW )
|
|
{
|
|
/*
|
|
* According to SP 800-38F Table 1, the ciphertext length for KW
|
|
* must be between 3 to 2^54 semiblocks inclusive.
|
|
*/
|
|
if( in_len < 24 ||
|
|
#if SIZE_MAX > 0x200000000000000
|
|
in_len > 0x200000000000000 ||
|
|
#endif
|
|
in_len % KW_SEMIBLOCK_LENGTH != 0 )
|
|
{
|
|
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
|
}
|
|
|
|
ret = unwrap( ctx, input, in_len / KW_SEMIBLOCK_LENGTH,
|
|
A, output, out_len );
|
|
if( ret != 0 )
|
|
goto cleanup;
|
|
|
|
/* Check ICV in "constant-time" */
|
|
diff = mbedtls_nist_kw_safer_memcmp( NIST_KW_ICV1, A, KW_SEMIBLOCK_LENGTH );
|
|
|
|
if( diff != 0 )
|
|
{
|
|
ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED;
|
|
goto cleanup;
|
|
}
|
|
|
|
}
|
|
else if( mode == MBEDTLS_KW_MODE_KWP )
|
|
{
|
|
size_t padlen = 0;
|
|
uint32_t Plen;
|
|
/*
|
|
* According to SP 800-38F Table 1, the ciphertext length for KWP
|
|
* must be between 2 to 2^29 semiblocks inclusive.
|
|
*/
|
|
if( in_len < KW_SEMIBLOCK_LENGTH * 2 ||
|
|
#if SIZE_MAX > 0x100000000
|
|
in_len > 0x100000000 ||
|
|
#endif
|
|
in_len % KW_SEMIBLOCK_LENGTH != 0 )
|
|
{
|
|
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
|
}
|
|
|
|
if( in_len == KW_SEMIBLOCK_LENGTH * 2 )
|
|
{
|
|
unsigned char outbuff[KW_SEMIBLOCK_LENGTH * 2];
|
|
ret = mbedtls_cipher_update( &ctx->cipher_ctx,
|
|
input, 16, outbuff, &olen );
|
|
if( ret != 0 )
|
|
goto cleanup;
|
|
|
|
memcpy( A, outbuff, KW_SEMIBLOCK_LENGTH );
|
|
memcpy( output, outbuff + KW_SEMIBLOCK_LENGTH, KW_SEMIBLOCK_LENGTH );
|
|
mbedtls_platform_zeroize( outbuff, sizeof( outbuff ) );
|
|
*out_len = KW_SEMIBLOCK_LENGTH;
|
|
}
|
|
else
|
|
{
|
|
/* in_len >= KW_SEMIBLOCK_LENGTH * 3 */
|
|
ret = unwrap( ctx, input, in_len / KW_SEMIBLOCK_LENGTH,
|
|
A, output, out_len );
|
|
if( ret != 0 )
|
|
goto cleanup;
|
|
}
|
|
|
|
/* Check ICV in "constant-time" */
|
|
diff = mbedtls_nist_kw_safer_memcmp( NIST_KW_ICV2, A, KW_SEMIBLOCK_LENGTH / 2 );
|
|
|
|
if( diff != 0 )
|
|
{
|
|
ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED;
|
|
}
|
|
|
|
GET_UINT32_BE( Plen, A, KW_SEMIBLOCK_LENGTH / 2 );
|
|
|
|
/*
|
|
* Plen is the length of the plaintext, when the input is valid.
|
|
* If Plen is larger than the plaintext and padding, padlen will be
|
|
* larger than 8, because of the type wrap around.
|
|
*/
|
|
padlen = in_len - KW_SEMIBLOCK_LENGTH - Plen;
|
|
if ( padlen > 7 )
|
|
{
|
|
padlen &= 7;
|
|
ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED;
|
|
}
|
|
|
|
/* Check padding in "constant-time" */
|
|
for( diff = 0, i = 0; i < KW_SEMIBLOCK_LENGTH; i++ )
|
|
{
|
|
if( i >= KW_SEMIBLOCK_LENGTH - padlen )
|
|
diff |= output[*out_len - KW_SEMIBLOCK_LENGTH + i];
|
|
else
|
|
bad_padding |= output[*out_len - KW_SEMIBLOCK_LENGTH + i];
|
|
}
|
|
|
|
if( diff != 0 )
|
|
{
|
|
ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED;
|
|
}
|
|
|
|
if( ret != 0 )
|
|
{
|
|
goto cleanup;
|
|
}
|
|
mbedtls_platform_zeroize( output + Plen, padlen );
|
|
*out_len = Plen;
|
|
}
|
|
else
|
|
{
|
|
ret = MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE;
|
|
goto cleanup;
|
|
}
|
|
|
|
cleanup:
|
|
if( ret != 0 )
|
|
{
|
|
mbedtls_platform_zeroize( output, *out_len );
|
|
*out_len = 0;
|
|
}
|
|
|
|
mbedtls_platform_zeroize( &bad_padding, sizeof( bad_padding) );
|
|
mbedtls_platform_zeroize( &diff, sizeof( diff ) );
|
|
mbedtls_platform_zeroize( A, sizeof( A ) );
|
|
|
|
return( ret );
|
|
}
|
|
|
|
#endif /* !MBEDTLS_NIST_KW_ALT */
|
|
|
|
#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
|
|
|
|
#define KW_TESTS 3
|
|
|
|
/*
|
|
* Test vectors taken from NIST
|
|
* https://csrc.nist.gov/Projects/Cryptographic-Algorithm-Validation-Program/CAVP-TESTING-BLOCK-CIPHER-MODES#KW
|
|
*/
|
|
static const unsigned int key_len[KW_TESTS] = { 16, 24, 32 };
|
|
|
|
static const unsigned char kw_key[KW_TESTS][32] = {
|
|
{ 0x75, 0x75, 0xda, 0x3a, 0x93, 0x60, 0x7c, 0xc2,
|
|
0xbf, 0xd8, 0xce, 0xc7, 0xaa, 0xdf, 0xd9, 0xa6 },
|
|
{ 0x2d, 0x85, 0x26, 0x08, 0x1d, 0x02, 0xfb, 0x5b,
|
|
0x85, 0xf6, 0x9a, 0xc2, 0x86, 0xec, 0xd5, 0x7d,
|
|
0x40, 0xdf, 0x5d, 0xf3, 0x49, 0x47, 0x44, 0xd3 },
|
|
{ 0x11, 0x2a, 0xd4, 0x1b, 0x48, 0x56, 0xc7, 0x25,
|
|
0x4a, 0x98, 0x48, 0xd3, 0x0f, 0xdd, 0x78, 0x33,
|
|
0x5b, 0x03, 0x9a, 0x48, 0xa8, 0x96, 0x2c, 0x4d,
|
|
0x1c, 0xb7, 0x8e, 0xab, 0xd5, 0xda, 0xd7, 0x88 }
|
|
};
|
|
|
|
static const unsigned char kw_msg[KW_TESTS][40] = {
|
|
{ 0x42, 0x13, 0x6d, 0x3c, 0x38, 0x4a, 0x3e, 0xea,
|
|
0xc9, 0x5a, 0x06, 0x6f, 0xd2, 0x8f, 0xed, 0x3f },
|
|
{ 0x95, 0xc1, 0x1b, 0xf5, 0x35, 0x3a, 0xfe, 0xdb,
|
|
0x98, 0xfd, 0xd6, 0xc8, 0xca, 0x6f, 0xdb, 0x6d,
|
|
0xa5, 0x4b, 0x74, 0xb4, 0x99, 0x0f, 0xdc, 0x45,
|
|
0xc0, 0x9d, 0x15, 0x8f, 0x51, 0xce, 0x62, 0x9d,
|
|
0xe2, 0xaf, 0x26, 0xe3, 0x25, 0x0e, 0x6b, 0x4c },
|
|
{ 0x1b, 0x20, 0xbf, 0x19, 0x90, 0xb0, 0x65, 0xd7,
|
|
0x98, 0xe1, 0xb3, 0x22, 0x64, 0xad, 0x50, 0xa8,
|
|
0x74, 0x74, 0x92, 0xba, 0x09, 0xa0, 0x4d, 0xd1 }
|
|
};
|
|
|
|
static const size_t kw_msg_len[KW_TESTS] = { 16, 40, 24 };
|
|
static const size_t kw_out_len[KW_TESTS] = { 24, 48, 32 };
|
|
static const unsigned char kw_res[KW_TESTS][48] = {
|
|
{ 0x03, 0x1f, 0x6b, 0xd7, 0xe6, 0x1e, 0x64, 0x3d,
|
|
0xf6, 0x85, 0x94, 0x81, 0x6f, 0x64, 0xca, 0xa3,
|
|
0xf5, 0x6f, 0xab, 0xea, 0x25, 0x48, 0xf5, 0xfb },
|
|
{ 0x44, 0x3c, 0x6f, 0x15, 0x09, 0x83, 0x71, 0x91,
|
|
0x3e, 0x5c, 0x81, 0x4c, 0xa1, 0xa0, 0x42, 0xec,
|
|
0x68, 0x2f, 0x7b, 0x13, 0x6d, 0x24, 0x3a, 0x4d,
|
|
0x6c, 0x42, 0x6f, 0xc6, 0x97, 0x15, 0x63, 0xe8,
|
|
0xa1, 0x4a, 0x55, 0x8e, 0x09, 0x64, 0x16, 0x19,
|
|
0xbf, 0x03, 0xfc, 0xaf, 0x90, 0xb1, 0xfc, 0x2d },
|
|
{ 0xba, 0x8a, 0x25, 0x9a, 0x47, 0x1b, 0x78, 0x7d,
|
|
0xd5, 0xd5, 0x40, 0xec, 0x25, 0xd4, 0x3d, 0x87,
|
|
0x20, 0x0f, 0xda, 0xdc, 0x6d, 0x1f, 0x05, 0xd9,
|
|
0x16, 0x58, 0x4f, 0xa9, 0xf6, 0xcb, 0xf5, 0x12 }
|
|
};
|
|
|
|
static const unsigned char kwp_key[KW_TESTS][32] = {
|
|
{ 0x78, 0x65, 0xe2, 0x0f, 0x3c, 0x21, 0x65, 0x9a,
|
|
0xb4, 0x69, 0x0b, 0x62, 0x9c, 0xdf, 0x3c, 0xc4 },
|
|
{ 0xf5, 0xf8, 0x96, 0xa3, 0xbd, 0x2f, 0x4a, 0x98,
|
|
0x23, 0xef, 0x16, 0x2b, 0x00, 0xb8, 0x05, 0xd7,
|
|
0xde, 0x1e, 0xa4, 0x66, 0x26, 0x96, 0xa2, 0x58 },
|
|
{ 0x95, 0xda, 0x27, 0x00, 0xca, 0x6f, 0xd9, 0xa5,
|
|
0x25, 0x54, 0xee, 0x2a, 0x8d, 0xf1, 0x38, 0x6f,
|
|
0x5b, 0x94, 0xa1, 0xa6, 0x0e, 0xd8, 0xa4, 0xae,
|
|
0xf6, 0x0a, 0x8d, 0x61, 0xab, 0x5f, 0x22, 0x5a }
|
|
};
|
|
|
|
static const unsigned char kwp_msg[KW_TESTS][31] = {
|
|
{ 0xbd, 0x68, 0x43, 0xd4, 0x20, 0x37, 0x8d, 0xc8,
|
|
0x96 },
|
|
{ 0x6c, 0xcd, 0xd5, 0x85, 0x18, 0x40, 0x97, 0xeb,
|
|
0xd5, 0xc3, 0xaf, 0x3e, 0x47, 0xd0, 0x2c, 0x19,
|
|
0x14, 0x7b, 0x4d, 0x99, 0x5f, 0x96, 0x43, 0x66,
|
|
0x91, 0x56, 0x75, 0x8c, 0x13, 0x16, 0x8f },
|
|
{ 0xd1 }
|
|
};
|
|
static const size_t kwp_msg_len[KW_TESTS] = { 9, 31, 1 };
|
|
|
|
static const unsigned char kwp_res[KW_TESTS][48] = {
|
|
{ 0x41, 0xec, 0xa9, 0x56, 0xd4, 0xaa, 0x04, 0x7e,
|
|
0xb5, 0xcf, 0x4e, 0xfe, 0x65, 0x96, 0x61, 0xe7,
|
|
0x4d, 0xb6, 0xf8, 0xc5, 0x64, 0xe2, 0x35, 0x00 },
|
|
{ 0x4e, 0x9b, 0xc2, 0xbc, 0xbc, 0x6c, 0x1e, 0x13,
|
|
0xd3, 0x35, 0xbc, 0xc0, 0xf7, 0x73, 0x6a, 0x88,
|
|
0xfa, 0x87, 0x53, 0x66, 0x15, 0xbb, 0x8e, 0x63,
|
|
0x8b, 0xcc, 0x81, 0x66, 0x84, 0x68, 0x17, 0x90,
|
|
0x67, 0xcf, 0xa9, 0x8a, 0x9d, 0x0e, 0x33, 0x26 },
|
|
{ 0x06, 0xba, 0x7a, 0xe6, 0xf3, 0x24, 0x8c, 0xfd,
|
|
0xcf, 0x26, 0x75, 0x07, 0xfa, 0x00, 0x1b, 0xc4 }
|
|
};
|
|
static const size_t kwp_out_len[KW_TESTS] = { 24, 40, 16 };
|
|
|
|
int mbedtls_nist_kw_self_test( int verbose )
|
|
{
|
|
mbedtls_nist_kw_context ctx;
|
|
unsigned char out[48];
|
|
size_t olen;
|
|
int i;
|
|
int ret = 0;
|
|
mbedtls_nist_kw_init( &ctx );
|
|
|
|
for( i = 0; i < KW_TESTS; i++ )
|
|
{
|
|
if( verbose != 0 )
|
|
mbedtls_printf( " KW-AES-%u ", (unsigned int) key_len[i] * 8 );
|
|
|
|
ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES,
|
|
kw_key[i], key_len[i] * 8, 1 );
|
|
if( ret != 0 )
|
|
{
|
|
if( verbose != 0 )
|
|
mbedtls_printf( " KW: setup failed " );
|
|
|
|
goto end;
|
|
}
|
|
|
|
ret = mbedtls_nist_kw_wrap( &ctx, MBEDTLS_KW_MODE_KW, kw_msg[i],
|
|
kw_msg_len[i], out, &olen, sizeof( out ) );
|
|
if( ret != 0 || kw_out_len[i] != olen ||
|
|
memcmp( out, kw_res[i], kw_out_len[i] ) != 0 )
|
|
{
|
|
if( verbose != 0 )
|
|
mbedtls_printf( "failed. ");
|
|
|
|
ret = 1;
|
|
goto end;
|
|
}
|
|
|
|
if( ( ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES,
|
|
kw_key[i], key_len[i] * 8, 0 ) )
|
|
!= 0 )
|
|
{
|
|
if( verbose != 0 )
|
|
mbedtls_printf( " KW: setup failed ");
|
|
|
|
goto end;
|
|
}
|
|
|
|
ret = mbedtls_nist_kw_unwrap( &ctx, MBEDTLS_KW_MODE_KW,
|
|
out, olen, out, &olen, sizeof( out ) );
|
|
|
|
if( ret != 0 || olen != kw_msg_len[i] ||
|
|
memcmp( out, kw_msg[i], kw_msg_len[i] ) != 0 )
|
|
{
|
|
if( verbose != 0 )
|
|
mbedtls_printf( "failed\n" );
|
|
|
|
ret = 1;
|
|
goto end;
|
|
}
|
|
|
|
if( verbose != 0 )
|
|
mbedtls_printf( " passed\n" );
|
|
}
|
|
|
|
for( i = 0; i < KW_TESTS; i++ )
|
|
{
|
|
olen = sizeof( out );
|
|
if( verbose != 0 )
|
|
mbedtls_printf( " KWP-AES-%u ", (unsigned int) key_len[i] * 8 );
|
|
|
|
ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES, kwp_key[i],
|
|
key_len[i] * 8, 1 );
|
|
if( ret != 0 )
|
|
{
|
|
if( verbose != 0 )
|
|
mbedtls_printf( " KWP: setup failed " );
|
|
|
|
goto end;
|
|
}
|
|
ret = mbedtls_nist_kw_wrap( &ctx, MBEDTLS_KW_MODE_KWP, kwp_msg[i],
|
|
kwp_msg_len[i], out, &olen, sizeof( out ) );
|
|
|
|
if( ret != 0 || kwp_out_len[i] != olen ||
|
|
memcmp( out, kwp_res[i], kwp_out_len[i] ) != 0 )
|
|
{
|
|
if( verbose != 0 )
|
|
mbedtls_printf( "failed. ");
|
|
|
|
ret = 1;
|
|
goto end;
|
|
}
|
|
|
|
if( ( ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES,
|
|
kwp_key[i], key_len[i] * 8, 0 ) )
|
|
!= 0 )
|
|
{
|
|
if( verbose != 0 )
|
|
mbedtls_printf( " KWP: setup failed ");
|
|
|
|
goto end;
|
|
}
|
|
|
|
ret = mbedtls_nist_kw_unwrap( &ctx, MBEDTLS_KW_MODE_KWP, out,
|
|
olen, out, &olen, sizeof( out ) );
|
|
|
|
if( ret != 0 || olen != kwp_msg_len[i] ||
|
|
memcmp( out, kwp_msg[i], kwp_msg_len[i] ) != 0 )
|
|
{
|
|
if( verbose != 0 )
|
|
mbedtls_printf( "failed. ");
|
|
|
|
ret = 1;
|
|
goto end;
|
|
}
|
|
|
|
if( verbose != 0 )
|
|
mbedtls_printf( " passed\n" );
|
|
}
|
|
end:
|
|
mbedtls_nist_kw_free( &ctx );
|
|
|
|
if( verbose != 0 )
|
|
mbedtls_printf( "\n" );
|
|
|
|
return( ret );
|
|
}
|
|
|
|
#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
|