573 lines
19 KiB
C
Executable File
573 lines
19 KiB
C
Executable File
/**
|
|
* \file chacha20.c
|
|
*
|
|
* \brief ChaCha20 cipher.
|
|
*
|
|
* \author Daniel King <damaki.gh@gmail.com>
|
|
*
|
|
* Copyright (C) 2006-2016, ARM Limited, All Rights Reserved
|
|
* SPDX-License-Identifier: GPL-2.0
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* This file is part of mbed TLS (https://tls.mbed.org)
|
|
*/
|
|
|
|
#if !defined(MBEDTLS_CONFIG_FILE)
|
|
#include "mbedtls/config.h"
|
|
#else
|
|
#include MBEDTLS_CONFIG_FILE
|
|
#endif
|
|
|
|
#if defined(MBEDTLS_CHACHA20_C)
|
|
|
|
#include "mbedtls/chacha20.h"
|
|
#include "mbedtls/platform_util.h"
|
|
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
|
|
#if defined(MBEDTLS_SELF_TEST)
|
|
#if defined(MBEDTLS_PLATFORM_C)
|
|
#include "mbedtls/platform.h"
|
|
#else
|
|
#include <stdio.h>
|
|
#define mbedtls_printf printf
|
|
#endif /* MBEDTLS_PLATFORM_C */
|
|
#endif /* MBEDTLS_SELF_TEST */
|
|
|
|
#if !defined(MBEDTLS_CHACHA20_ALT)
|
|
|
|
#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
|
|
!defined(inline) && !defined(__cplusplus)
|
|
#define inline __inline
|
|
#endif
|
|
|
|
#define BYTES_TO_U32_LE( data, offset ) \
|
|
( (uint32_t) data[offset] \
|
|
| (uint32_t) ( (uint32_t) data[( offset ) + 1] << 8 ) \
|
|
| (uint32_t) ( (uint32_t) data[( offset ) + 2] << 16 ) \
|
|
| (uint32_t) ( (uint32_t) data[( offset ) + 3] << 24 ) \
|
|
)
|
|
|
|
#define ROTL32( value, amount ) \
|
|
( (uint32_t) ( value << amount ) | ( value >> ( 32 - amount ) ) )
|
|
|
|
#define CHACHA20_CTR_INDEX ( 12U )
|
|
|
|
#define CHACHA20_BLOCK_SIZE_BYTES ( 4U * 16U )
|
|
|
|
/**
|
|
* \brief ChaCha20 quarter round operation.
|
|
*
|
|
* The quarter round is defined as follows (from RFC 7539):
|
|
* 1. a += b; d ^= a; d <<<= 16;
|
|
* 2. c += d; b ^= c; b <<<= 12;
|
|
* 3. a += b; d ^= a; d <<<= 8;
|
|
* 4. c += d; b ^= c; b <<<= 7;
|
|
*
|
|
* \param state ChaCha20 state to modify.
|
|
* \param a The index of 'a' in the state.
|
|
* \param b The index of 'b' in the state.
|
|
* \param c The index of 'c' in the state.
|
|
* \param d The index of 'd' in the state.
|
|
*/
|
|
static inline void chacha20_quarter_round( uint32_t state[16],
|
|
size_t a,
|
|
size_t b,
|
|
size_t c,
|
|
size_t d )
|
|
{
|
|
/* a += b; d ^= a; d <<<= 16; */
|
|
state[a] += state[b];
|
|
state[d] ^= state[a];
|
|
state[d] = ROTL32( state[d], 16 );
|
|
|
|
/* c += d; b ^= c; b <<<= 12 */
|
|
state[c] += state[d];
|
|
state[b] ^= state[c];
|
|
state[b] = ROTL32( state[b], 12 );
|
|
|
|
/* a += b; d ^= a; d <<<= 8; */
|
|
state[a] += state[b];
|
|
state[d] ^= state[a];
|
|
state[d] = ROTL32( state[d], 8 );
|
|
|
|
/* c += d; b ^= c; b <<<= 7; */
|
|
state[c] += state[d];
|
|
state[b] ^= state[c];
|
|
state[b] = ROTL32( state[b], 7 );
|
|
}
|
|
|
|
/**
|
|
* \brief Perform the ChaCha20 inner block operation.
|
|
*
|
|
* This function performs two rounds: the column round and the
|
|
* diagonal round.
|
|
*
|
|
* \param state The ChaCha20 state to update.
|
|
*/
|
|
static void chacha20_inner_block( uint32_t state[16] )
|
|
{
|
|
chacha20_quarter_round( state, 0, 4, 8, 12 );
|
|
chacha20_quarter_round( state, 1, 5, 9, 13 );
|
|
chacha20_quarter_round( state, 2, 6, 10, 14 );
|
|
chacha20_quarter_round( state, 3, 7, 11, 15 );
|
|
|
|
chacha20_quarter_round( state, 0, 5, 10, 15 );
|
|
chacha20_quarter_round( state, 1, 6, 11, 12 );
|
|
chacha20_quarter_round( state, 2, 7, 8, 13 );
|
|
chacha20_quarter_round( state, 3, 4, 9, 14 );
|
|
}
|
|
|
|
/**
|
|
* \brief Generates a keystream block.
|
|
*
|
|
* \param initial_state The initial ChaCha20 state (key, nonce, counter).
|
|
* \param keystream Generated keystream bytes are written to this buffer.
|
|
*/
|
|
static void chacha20_block( const uint32_t initial_state[16],
|
|
unsigned char keystream[64] )
|
|
{
|
|
uint32_t working_state[16];
|
|
size_t i;
|
|
|
|
memcpy( working_state,
|
|
initial_state,
|
|
CHACHA20_BLOCK_SIZE_BYTES );
|
|
|
|
for( i = 0U; i < 10U; i++ )
|
|
chacha20_inner_block( working_state );
|
|
|
|
working_state[ 0] += initial_state[ 0];
|
|
working_state[ 1] += initial_state[ 1];
|
|
working_state[ 2] += initial_state[ 2];
|
|
working_state[ 3] += initial_state[ 3];
|
|
working_state[ 4] += initial_state[ 4];
|
|
working_state[ 5] += initial_state[ 5];
|
|
working_state[ 6] += initial_state[ 6];
|
|
working_state[ 7] += initial_state[ 7];
|
|
working_state[ 8] += initial_state[ 8];
|
|
working_state[ 9] += initial_state[ 9];
|
|
working_state[10] += initial_state[10];
|
|
working_state[11] += initial_state[11];
|
|
working_state[12] += initial_state[12];
|
|
working_state[13] += initial_state[13];
|
|
working_state[14] += initial_state[14];
|
|
working_state[15] += initial_state[15];
|
|
|
|
for( i = 0U; i < 16; i++ )
|
|
{
|
|
size_t offset = i * 4U;
|
|
|
|
keystream[offset ] = (unsigned char)( working_state[i] );
|
|
keystream[offset + 1U] = (unsigned char)( working_state[i] >> 8 );
|
|
keystream[offset + 2U] = (unsigned char)( working_state[i] >> 16 );
|
|
keystream[offset + 3U] = (unsigned char)( working_state[i] >> 24 );
|
|
}
|
|
|
|
mbedtls_platform_zeroize( working_state, sizeof( working_state ) );
|
|
}
|
|
|
|
void mbedtls_chacha20_init( mbedtls_chacha20_context *ctx )
|
|
{
|
|
if( ctx != NULL )
|
|
{
|
|
mbedtls_platform_zeroize( ctx->state, sizeof( ctx->state ) );
|
|
mbedtls_platform_zeroize( ctx->keystream8, sizeof( ctx->keystream8 ) );
|
|
|
|
/* Initially, there's no keystream bytes available */
|
|
ctx->keystream_bytes_used = CHACHA20_BLOCK_SIZE_BYTES;
|
|
}
|
|
}
|
|
|
|
void mbedtls_chacha20_free( mbedtls_chacha20_context *ctx )
|
|
{
|
|
if( ctx != NULL )
|
|
{
|
|
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_chacha20_context ) );
|
|
}
|
|
}
|
|
|
|
int mbedtls_chacha20_setkey( mbedtls_chacha20_context *ctx,
|
|
const unsigned char key[32] )
|
|
{
|
|
if( ( ctx == NULL ) || ( key == NULL ) )
|
|
{
|
|
return( MBEDTLS_ERR_CHACHA20_BAD_INPUT_DATA );
|
|
}
|
|
|
|
/* ChaCha20 constants - the string "expand 32-byte k" */
|
|
ctx->state[0] = 0x61707865;
|
|
ctx->state[1] = 0x3320646e;
|
|
ctx->state[2] = 0x79622d32;
|
|
ctx->state[3] = 0x6b206574;
|
|
|
|
/* Set key */
|
|
ctx->state[4] = BYTES_TO_U32_LE( key, 0 );
|
|
ctx->state[5] = BYTES_TO_U32_LE( key, 4 );
|
|
ctx->state[6] = BYTES_TO_U32_LE( key, 8 );
|
|
ctx->state[7] = BYTES_TO_U32_LE( key, 12 );
|
|
ctx->state[8] = BYTES_TO_U32_LE( key, 16 );
|
|
ctx->state[9] = BYTES_TO_U32_LE( key, 20 );
|
|
ctx->state[10] = BYTES_TO_U32_LE( key, 24 );
|
|
ctx->state[11] = BYTES_TO_U32_LE( key, 28 );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
int mbedtls_chacha20_starts( mbedtls_chacha20_context* ctx,
|
|
const unsigned char nonce[12],
|
|
uint32_t counter )
|
|
{
|
|
if( ( ctx == NULL ) || ( nonce == NULL ) )
|
|
{
|
|
return( MBEDTLS_ERR_CHACHA20_BAD_INPUT_DATA );
|
|
}
|
|
|
|
/* Counter */
|
|
ctx->state[12] = counter;
|
|
|
|
/* Nonce */
|
|
ctx->state[13] = BYTES_TO_U32_LE( nonce, 0 );
|
|
ctx->state[14] = BYTES_TO_U32_LE( nonce, 4 );
|
|
ctx->state[15] = BYTES_TO_U32_LE( nonce, 8 );
|
|
|
|
mbedtls_platform_zeroize( ctx->keystream8, sizeof( ctx->keystream8 ) );
|
|
|
|
/* Initially, there's no keystream bytes available */
|
|
ctx->keystream_bytes_used = CHACHA20_BLOCK_SIZE_BYTES;
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
int mbedtls_chacha20_update( mbedtls_chacha20_context *ctx,
|
|
size_t size,
|
|
const unsigned char *input,
|
|
unsigned char *output )
|
|
{
|
|
size_t offset = 0U;
|
|
size_t i;
|
|
|
|
if( ctx == NULL )
|
|
{
|
|
return( MBEDTLS_ERR_CHACHA20_BAD_INPUT_DATA );
|
|
}
|
|
else if( ( size > 0U ) && ( ( input == NULL ) || ( output == NULL ) ) )
|
|
{
|
|
/* input and output pointers are allowed to be NULL only if size == 0 */
|
|
return( MBEDTLS_ERR_CHACHA20_BAD_INPUT_DATA );
|
|
}
|
|
|
|
/* Use leftover keystream bytes, if available */
|
|
while( size > 0U && ctx->keystream_bytes_used < CHACHA20_BLOCK_SIZE_BYTES )
|
|
{
|
|
output[offset] = input[offset]
|
|
^ ctx->keystream8[ctx->keystream_bytes_used];
|
|
|
|
ctx->keystream_bytes_used++;
|
|
offset++;
|
|
size--;
|
|
}
|
|
|
|
/* Process full blocks */
|
|
while( size >= CHACHA20_BLOCK_SIZE_BYTES )
|
|
{
|
|
/* Generate new keystream block and increment counter */
|
|
chacha20_block( ctx->state, ctx->keystream8 );
|
|
ctx->state[CHACHA20_CTR_INDEX]++;
|
|
|
|
for( i = 0U; i < 64U; i += 8U )
|
|
{
|
|
output[offset + i ] = input[offset + i ] ^ ctx->keystream8[i ];
|
|
output[offset + i+1] = input[offset + i+1] ^ ctx->keystream8[i+1];
|
|
output[offset + i+2] = input[offset + i+2] ^ ctx->keystream8[i+2];
|
|
output[offset + i+3] = input[offset + i+3] ^ ctx->keystream8[i+3];
|
|
output[offset + i+4] = input[offset + i+4] ^ ctx->keystream8[i+4];
|
|
output[offset + i+5] = input[offset + i+5] ^ ctx->keystream8[i+5];
|
|
output[offset + i+6] = input[offset + i+6] ^ ctx->keystream8[i+6];
|
|
output[offset + i+7] = input[offset + i+7] ^ ctx->keystream8[i+7];
|
|
}
|
|
|
|
offset += CHACHA20_BLOCK_SIZE_BYTES;
|
|
size -= CHACHA20_BLOCK_SIZE_BYTES;
|
|
}
|
|
|
|
/* Last (partial) block */
|
|
if( size > 0U )
|
|
{
|
|
/* Generate new keystream block and increment counter */
|
|
chacha20_block( ctx->state, ctx->keystream8 );
|
|
ctx->state[CHACHA20_CTR_INDEX]++;
|
|
|
|
for( i = 0U; i < size; i++)
|
|
{
|
|
output[offset + i] = input[offset + i] ^ ctx->keystream8[i];
|
|
}
|
|
|
|
ctx->keystream_bytes_used = size;
|
|
|
|
}
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
int mbedtls_chacha20_crypt( const unsigned char key[32],
|
|
const unsigned char nonce[12],
|
|
uint32_t counter,
|
|
size_t data_len,
|
|
const unsigned char* input,
|
|
unsigned char* output )
|
|
{
|
|
mbedtls_chacha20_context ctx;
|
|
int ret;
|
|
|
|
mbedtls_chacha20_init( &ctx );
|
|
|
|
ret = mbedtls_chacha20_setkey( &ctx, key );
|
|
if( ret != 0 )
|
|
goto cleanup;
|
|
|
|
ret = mbedtls_chacha20_starts( &ctx, nonce, counter );
|
|
if( ret != 0 )
|
|
goto cleanup;
|
|
|
|
ret = mbedtls_chacha20_update( &ctx, data_len, input, output );
|
|
|
|
cleanup:
|
|
mbedtls_chacha20_free( &ctx );
|
|
return( ret );
|
|
}
|
|
|
|
#endif /* !MBEDTLS_CHACHA20_ALT */
|
|
|
|
#if defined(MBEDTLS_SELF_TEST)
|
|
|
|
static const unsigned char test_keys[2][32] =
|
|
{
|
|
{
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
|
|
},
|
|
{
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01
|
|
}
|
|
};
|
|
|
|
static const unsigned char test_nonces[2][12] =
|
|
{
|
|
{
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00
|
|
},
|
|
{
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x02
|
|
}
|
|
};
|
|
|
|
static const uint32_t test_counters[2] =
|
|
{
|
|
0U,
|
|
1U
|
|
};
|
|
|
|
static const unsigned char test_input[2][375] =
|
|
{
|
|
{
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
|
|
},
|
|
{
|
|
0x41, 0x6e, 0x79, 0x20, 0x73, 0x75, 0x62, 0x6d,
|
|
0x69, 0x73, 0x73, 0x69, 0x6f, 0x6e, 0x20, 0x74,
|
|
0x6f, 0x20, 0x74, 0x68, 0x65, 0x20, 0x49, 0x45,
|
|
0x54, 0x46, 0x20, 0x69, 0x6e, 0x74, 0x65, 0x6e,
|
|
0x64, 0x65, 0x64, 0x20, 0x62, 0x79, 0x20, 0x74,
|
|
0x68, 0x65, 0x20, 0x43, 0x6f, 0x6e, 0x74, 0x72,
|
|
0x69, 0x62, 0x75, 0x74, 0x6f, 0x72, 0x20, 0x66,
|
|
0x6f, 0x72, 0x20, 0x70, 0x75, 0x62, 0x6c, 0x69,
|
|
0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x61,
|
|
0x73, 0x20, 0x61, 0x6c, 0x6c, 0x20, 0x6f, 0x72,
|
|
0x20, 0x70, 0x61, 0x72, 0x74, 0x20, 0x6f, 0x66,
|
|
0x20, 0x61, 0x6e, 0x20, 0x49, 0x45, 0x54, 0x46,
|
|
0x20, 0x49, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65,
|
|
0x74, 0x2d, 0x44, 0x72, 0x61, 0x66, 0x74, 0x20,
|
|
0x6f, 0x72, 0x20, 0x52, 0x46, 0x43, 0x20, 0x61,
|
|
0x6e, 0x64, 0x20, 0x61, 0x6e, 0x79, 0x20, 0x73,
|
|
0x74, 0x61, 0x74, 0x65, 0x6d, 0x65, 0x6e, 0x74,
|
|
0x20, 0x6d, 0x61, 0x64, 0x65, 0x20, 0x77, 0x69,
|
|
0x74, 0x68, 0x69, 0x6e, 0x20, 0x74, 0x68, 0x65,
|
|
0x20, 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x78, 0x74,
|
|
0x20, 0x6f, 0x66, 0x20, 0x61, 0x6e, 0x20, 0x49,
|
|
0x45, 0x54, 0x46, 0x20, 0x61, 0x63, 0x74, 0x69,
|
|
0x76, 0x69, 0x74, 0x79, 0x20, 0x69, 0x73, 0x20,
|
|
0x63, 0x6f, 0x6e, 0x73, 0x69, 0x64, 0x65, 0x72,
|
|
0x65, 0x64, 0x20, 0x61, 0x6e, 0x20, 0x22, 0x49,
|
|
0x45, 0x54, 0x46, 0x20, 0x43, 0x6f, 0x6e, 0x74,
|
|
0x72, 0x69, 0x62, 0x75, 0x74, 0x69, 0x6f, 0x6e,
|
|
0x22, 0x2e, 0x20, 0x53, 0x75, 0x63, 0x68, 0x20,
|
|
0x73, 0x74, 0x61, 0x74, 0x65, 0x6d, 0x65, 0x6e,
|
|
0x74, 0x73, 0x20, 0x69, 0x6e, 0x63, 0x6c, 0x75,
|
|
0x64, 0x65, 0x20, 0x6f, 0x72, 0x61, 0x6c, 0x20,
|
|
0x73, 0x74, 0x61, 0x74, 0x65, 0x6d, 0x65, 0x6e,
|
|
0x74, 0x73, 0x20, 0x69, 0x6e, 0x20, 0x49, 0x45,
|
|
0x54, 0x46, 0x20, 0x73, 0x65, 0x73, 0x73, 0x69,
|
|
0x6f, 0x6e, 0x73, 0x2c, 0x20, 0x61, 0x73, 0x20,
|
|
0x77, 0x65, 0x6c, 0x6c, 0x20, 0x61, 0x73, 0x20,
|
|
0x77, 0x72, 0x69, 0x74, 0x74, 0x65, 0x6e, 0x20,
|
|
0x61, 0x6e, 0x64, 0x20, 0x65, 0x6c, 0x65, 0x63,
|
|
0x74, 0x72, 0x6f, 0x6e, 0x69, 0x63, 0x20, 0x63,
|
|
0x6f, 0x6d, 0x6d, 0x75, 0x6e, 0x69, 0x63, 0x61,
|
|
0x74, 0x69, 0x6f, 0x6e, 0x73, 0x20, 0x6d, 0x61,
|
|
0x64, 0x65, 0x20, 0x61, 0x74, 0x20, 0x61, 0x6e,
|
|
0x79, 0x20, 0x74, 0x69, 0x6d, 0x65, 0x20, 0x6f,
|
|
0x72, 0x20, 0x70, 0x6c, 0x61, 0x63, 0x65, 0x2c,
|
|
0x20, 0x77, 0x68, 0x69, 0x63, 0x68, 0x20, 0x61,
|
|
0x72, 0x65, 0x20, 0x61, 0x64, 0x64, 0x72, 0x65,
|
|
0x73, 0x73, 0x65, 0x64, 0x20, 0x74, 0x6f
|
|
}
|
|
};
|
|
|
|
static const unsigned char test_output[2][375] =
|
|
{
|
|
{
|
|
0x76, 0xb8, 0xe0, 0xad, 0xa0, 0xf1, 0x3d, 0x90,
|
|
0x40, 0x5d, 0x6a, 0xe5, 0x53, 0x86, 0xbd, 0x28,
|
|
0xbd, 0xd2, 0x19, 0xb8, 0xa0, 0x8d, 0xed, 0x1a,
|
|
0xa8, 0x36, 0xef, 0xcc, 0x8b, 0x77, 0x0d, 0xc7,
|
|
0xda, 0x41, 0x59, 0x7c, 0x51, 0x57, 0x48, 0x8d,
|
|
0x77, 0x24, 0xe0, 0x3f, 0xb8, 0xd8, 0x4a, 0x37,
|
|
0x6a, 0x43, 0xb8, 0xf4, 0x15, 0x18, 0xa1, 0x1c,
|
|
0xc3, 0x87, 0xb6, 0x69, 0xb2, 0xee, 0x65, 0x86
|
|
},
|
|
{
|
|
0xa3, 0xfb, 0xf0, 0x7d, 0xf3, 0xfa, 0x2f, 0xde,
|
|
0x4f, 0x37, 0x6c, 0xa2, 0x3e, 0x82, 0x73, 0x70,
|
|
0x41, 0x60, 0x5d, 0x9f, 0x4f, 0x4f, 0x57, 0xbd,
|
|
0x8c, 0xff, 0x2c, 0x1d, 0x4b, 0x79, 0x55, 0xec,
|
|
0x2a, 0x97, 0x94, 0x8b, 0xd3, 0x72, 0x29, 0x15,
|
|
0xc8, 0xf3, 0xd3, 0x37, 0xf7, 0xd3, 0x70, 0x05,
|
|
0x0e, 0x9e, 0x96, 0xd6, 0x47, 0xb7, 0xc3, 0x9f,
|
|
0x56, 0xe0, 0x31, 0xca, 0x5e, 0xb6, 0x25, 0x0d,
|
|
0x40, 0x42, 0xe0, 0x27, 0x85, 0xec, 0xec, 0xfa,
|
|
0x4b, 0x4b, 0xb5, 0xe8, 0xea, 0xd0, 0x44, 0x0e,
|
|
0x20, 0xb6, 0xe8, 0xdb, 0x09, 0xd8, 0x81, 0xa7,
|
|
0xc6, 0x13, 0x2f, 0x42, 0x0e, 0x52, 0x79, 0x50,
|
|
0x42, 0xbd, 0xfa, 0x77, 0x73, 0xd8, 0xa9, 0x05,
|
|
0x14, 0x47, 0xb3, 0x29, 0x1c, 0xe1, 0x41, 0x1c,
|
|
0x68, 0x04, 0x65, 0x55, 0x2a, 0xa6, 0xc4, 0x05,
|
|
0xb7, 0x76, 0x4d, 0x5e, 0x87, 0xbe, 0xa8, 0x5a,
|
|
0xd0, 0x0f, 0x84, 0x49, 0xed, 0x8f, 0x72, 0xd0,
|
|
0xd6, 0x62, 0xab, 0x05, 0x26, 0x91, 0xca, 0x66,
|
|
0x42, 0x4b, 0xc8, 0x6d, 0x2d, 0xf8, 0x0e, 0xa4,
|
|
0x1f, 0x43, 0xab, 0xf9, 0x37, 0xd3, 0x25, 0x9d,
|
|
0xc4, 0xb2, 0xd0, 0xdf, 0xb4, 0x8a, 0x6c, 0x91,
|
|
0x39, 0xdd, 0xd7, 0xf7, 0x69, 0x66, 0xe9, 0x28,
|
|
0xe6, 0x35, 0x55, 0x3b, 0xa7, 0x6c, 0x5c, 0x87,
|
|
0x9d, 0x7b, 0x35, 0xd4, 0x9e, 0xb2, 0xe6, 0x2b,
|
|
0x08, 0x71, 0xcd, 0xac, 0x63, 0x89, 0x39, 0xe2,
|
|
0x5e, 0x8a, 0x1e, 0x0e, 0xf9, 0xd5, 0x28, 0x0f,
|
|
0xa8, 0xca, 0x32, 0x8b, 0x35, 0x1c, 0x3c, 0x76,
|
|
0x59, 0x89, 0xcb, 0xcf, 0x3d, 0xaa, 0x8b, 0x6c,
|
|
0xcc, 0x3a, 0xaf, 0x9f, 0x39, 0x79, 0xc9, 0x2b,
|
|
0x37, 0x20, 0xfc, 0x88, 0xdc, 0x95, 0xed, 0x84,
|
|
0xa1, 0xbe, 0x05, 0x9c, 0x64, 0x99, 0xb9, 0xfd,
|
|
0xa2, 0x36, 0xe7, 0xe8, 0x18, 0xb0, 0x4b, 0x0b,
|
|
0xc3, 0x9c, 0x1e, 0x87, 0x6b, 0x19, 0x3b, 0xfe,
|
|
0x55, 0x69, 0x75, 0x3f, 0x88, 0x12, 0x8c, 0xc0,
|
|
0x8a, 0xaa, 0x9b, 0x63, 0xd1, 0xa1, 0x6f, 0x80,
|
|
0xef, 0x25, 0x54, 0xd7, 0x18, 0x9c, 0x41, 0x1f,
|
|
0x58, 0x69, 0xca, 0x52, 0xc5, 0xb8, 0x3f, 0xa3,
|
|
0x6f, 0xf2, 0x16, 0xb9, 0xc1, 0xd3, 0x00, 0x62,
|
|
0xbe, 0xbc, 0xfd, 0x2d, 0xc5, 0xbc, 0xe0, 0x91,
|
|
0x19, 0x34, 0xfd, 0xa7, 0x9a, 0x86, 0xf6, 0xe6,
|
|
0x98, 0xce, 0xd7, 0x59, 0xc3, 0xff, 0x9b, 0x64,
|
|
0x77, 0x33, 0x8f, 0x3d, 0xa4, 0xf9, 0xcd, 0x85,
|
|
0x14, 0xea, 0x99, 0x82, 0xcc, 0xaf, 0xb3, 0x41,
|
|
0xb2, 0x38, 0x4d, 0xd9, 0x02, 0xf3, 0xd1, 0xab,
|
|
0x7a, 0xc6, 0x1d, 0xd2, 0x9c, 0x6f, 0x21, 0xba,
|
|
0x5b, 0x86, 0x2f, 0x37, 0x30, 0xe3, 0x7c, 0xfd,
|
|
0xc4, 0xfd, 0x80, 0x6c, 0x22, 0xf2, 0x21
|
|
}
|
|
};
|
|
|
|
static const size_t test_lengths[2] =
|
|
{
|
|
64U,
|
|
375U
|
|
};
|
|
|
|
#define ASSERT( cond, args ) \
|
|
do \
|
|
{ \
|
|
if( ! ( cond ) ) \
|
|
{ \
|
|
if( verbose != 0 ) \
|
|
mbedtls_printf args; \
|
|
\
|
|
return( -1 ); \
|
|
} \
|
|
} \
|
|
while( 0 )
|
|
|
|
int mbedtls_chacha20_self_test( int verbose )
|
|
{
|
|
unsigned char output[381];
|
|
unsigned i;
|
|
int ret;
|
|
|
|
for( i = 0U; i < 2U; i++ )
|
|
{
|
|
if( verbose != 0 )
|
|
mbedtls_printf( " ChaCha20 test %u ", i );
|
|
|
|
ret = mbedtls_chacha20_crypt( test_keys[i],
|
|
test_nonces[i],
|
|
test_counters[i],
|
|
test_lengths[i],
|
|
test_input[i],
|
|
output );
|
|
|
|
ASSERT( 0 == ret, ( "error code: %i\n", ret ) );
|
|
|
|
ASSERT( 0 == memcmp( output, test_output[i], test_lengths[i] ),
|
|
( "failed (output)\n" ) );
|
|
|
|
if( verbose != 0 )
|
|
mbedtls_printf( "passed\n" );
|
|
}
|
|
|
|
if( verbose != 0 )
|
|
mbedtls_printf( "\n" );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
#endif /* MBEDTLS_SELF_TEST */
|
|
|
|
#endif /* !MBEDTLS_CHACHA20_C */
|