diff options
Diffstat (limited to 'lib/mbedtls-2.27.0/library/chacha20.c')
-rw-r--r-- | lib/mbedtls-2.27.0/library/chacha20.c | 568 |
1 files changed, 0 insertions, 568 deletions
diff --git a/lib/mbedtls-2.27.0/library/chacha20.c b/lib/mbedtls-2.27.0/library/chacha20.c deleted file mode 100644 index 78467d3..0000000 --- a/lib/mbedtls-2.27.0/library/chacha20.c +++ /dev/null @@ -1,568 +0,0 @@ -/** - * \file chacha20.c - * - * \brief ChaCha20 cipher. - * - * \author Daniel King <damaki.gh@gmail.com> - * - * 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. - */ - -#include "common.h" - -#if defined(MBEDTLS_CHACHA20_C) - -#include "mbedtls/chacha20.h" -#include "mbedtls/platform_util.h" -#include "mbedtls/error.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 - -/* Parameter validation macros */ -#define CHACHA20_VALIDATE_RET( cond ) \ - MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_CHACHA20_BAD_INPUT_DATA ) -#define CHACHA20_VALIDATE( cond ) \ - MBEDTLS_INTERNAL_VALIDATE( cond ) - -#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 ) -{ - CHACHA20_VALIDATE( 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] ) -{ - CHACHA20_VALIDATE_RET( ctx != NULL ); - CHACHA20_VALIDATE_RET( key != NULL ); - - /* 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 ) -{ - CHACHA20_VALIDATE_RET( ctx != NULL ); - CHACHA20_VALIDATE_RET( nonce != NULL ); - - /* 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; - - CHACHA20_VALIDATE_RET( ctx != NULL ); - CHACHA20_VALIDATE_RET( size == 0 || input != NULL ); - CHACHA20_VALIDATE_RET( size == 0 || output != NULL ); - - /* 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_ERR_ERROR_CORRUPTION_DETECTED; - - CHACHA20_VALIDATE_RET( key != NULL ); - CHACHA20_VALIDATE_RET( nonce != NULL ); - CHACHA20_VALIDATE_RET( data_len == 0 || input != NULL ); - CHACHA20_VALIDATE_RET( data_len == 0 || output != NULL ); - - 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 -}; - -/* Make sure no other definition is already present. */ -#undef ASSERT - -#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 = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; - - 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 */ |