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Externals: Update mbedtls to 2.28.0
This commit is contained in:
638
Externals/mbedtls/library/cipher.c
vendored
638
Externals/mbedtls/library/cipher.c
vendored
@ -5,7 +5,7 @@
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*
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* \author Adriaan de Jong <dejong@fox-it.com>
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*
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* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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* Copyright The Mbed TLS Contributors
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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@ -19,21 +19,17 @@
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of mbed TLS (https://tls.mbed.org)
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*/
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "mbedtls/config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#include "common.h"
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#if defined(MBEDTLS_CIPHER_C)
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#include "mbedtls/cipher.h"
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#include "mbedtls/cipher_internal.h"
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#include "mbedtls/platform_util.h"
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#include "mbedtls/error.h"
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#include "mbedtls/constant_time.h"
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#include <stdlib.h>
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#include <string.h>
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@ -58,6 +54,15 @@
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#include "mbedtls/cmac.h"
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#endif
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#if defined(MBEDTLS_USE_PSA_CRYPTO)
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#include "psa/crypto.h"
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#include "mbedtls/psa_util.h"
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#endif /* MBEDTLS_USE_PSA_CRYPTO */
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#if defined(MBEDTLS_NIST_KW_C)
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#include "mbedtls/nist_kw.h"
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#endif
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#if defined(MBEDTLS_PLATFORM_C)
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#include "mbedtls/platform.h"
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#else
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@ -70,26 +75,6 @@
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#define CIPHER_VALIDATE( cond ) \
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MBEDTLS_INTERNAL_VALIDATE( cond )
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#if defined(MBEDTLS_GCM_C) || defined(MBEDTLS_CHACHAPOLY_C)
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/* Compare the contents of two buffers in constant time.
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* Returns 0 if the contents are bitwise identical, otherwise returns
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* a non-zero value.
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* This is currently only used by GCM and ChaCha20+Poly1305.
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*/
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static int mbedtls_constant_time_memcmp( const void *v1, const void *v2, size_t len )
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{
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const unsigned char *p1 = (const unsigned char*) v1;
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const unsigned char *p2 = (const unsigned char*) v2;
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size_t i;
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unsigned char diff;
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for( diff = 0, i = 0; i < len; i++ )
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diff |= p1[i] ^ p2[i];
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return( (int)diff );
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}
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#endif /* MBEDTLS_GCM_C || MBEDTLS_CHACHAPOLY_C */
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static int supported_init = 0;
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const int *mbedtls_cipher_list( void )
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@ -113,7 +98,8 @@ const int *mbedtls_cipher_list( void )
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return( mbedtls_cipher_supported );
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}
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const mbedtls_cipher_info_t *mbedtls_cipher_info_from_type( const mbedtls_cipher_type_t cipher_type )
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const mbedtls_cipher_info_t *mbedtls_cipher_info_from_type(
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const mbedtls_cipher_type_t cipher_type )
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{
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const mbedtls_cipher_definition_t *def;
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@ -124,7 +110,8 @@ const mbedtls_cipher_info_t *mbedtls_cipher_info_from_type( const mbedtls_cipher
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return( NULL );
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}
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const mbedtls_cipher_info_t *mbedtls_cipher_info_from_string( const char *cipher_name )
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const mbedtls_cipher_info_t *mbedtls_cipher_info_from_string(
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const char *cipher_name )
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{
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const mbedtls_cipher_definition_t *def;
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@ -138,9 +125,10 @@ const mbedtls_cipher_info_t *mbedtls_cipher_info_from_string( const char *cipher
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return( NULL );
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}
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const mbedtls_cipher_info_t *mbedtls_cipher_info_from_values( const mbedtls_cipher_id_t cipher_id,
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int key_bitlen,
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const mbedtls_cipher_mode_t mode )
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const mbedtls_cipher_info_t *mbedtls_cipher_info_from_values(
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const mbedtls_cipher_id_t cipher_id,
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int key_bitlen,
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const mbedtls_cipher_mode_t mode )
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{
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const mbedtls_cipher_definition_t *def;
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@ -164,6 +152,29 @@ void mbedtls_cipher_free( mbedtls_cipher_context_t *ctx )
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if( ctx == NULL )
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return;
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#if defined(MBEDTLS_USE_PSA_CRYPTO)
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if( ctx->psa_enabled == 1 )
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{
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if( ctx->cipher_ctx != NULL )
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{
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mbedtls_cipher_context_psa * const cipher_psa =
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(mbedtls_cipher_context_psa *) ctx->cipher_ctx;
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if( cipher_psa->slot_state == MBEDTLS_CIPHER_PSA_KEY_OWNED )
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{
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/* xxx_free() doesn't allow to return failures. */
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(void) psa_destroy_key( cipher_psa->slot );
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}
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mbedtls_platform_zeroize( cipher_psa, sizeof( *cipher_psa ) );
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mbedtls_free( cipher_psa );
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}
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mbedtls_platform_zeroize( ctx, sizeof(mbedtls_cipher_context_t) );
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return;
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}
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#endif /* MBEDTLS_USE_PSA_CRYPTO */
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#if defined(MBEDTLS_CMAC_C)
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if( ctx->cmac_ctx )
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{
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@ -179,7 +190,8 @@ void mbedtls_cipher_free( mbedtls_cipher_context_t *ctx )
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mbedtls_platform_zeroize( ctx, sizeof(mbedtls_cipher_context_t) );
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}
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int mbedtls_cipher_setup( mbedtls_cipher_context_t *ctx, const mbedtls_cipher_info_t *cipher_info )
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int mbedtls_cipher_setup( mbedtls_cipher_context_t *ctx,
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const mbedtls_cipher_info_t *cipher_info )
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{
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CIPHER_VALIDATE_RET( ctx != NULL );
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if( cipher_info == NULL )
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@ -206,6 +218,38 @@ int mbedtls_cipher_setup( mbedtls_cipher_context_t *ctx, const mbedtls_cipher_in
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return( 0 );
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}
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#if defined(MBEDTLS_USE_PSA_CRYPTO)
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int mbedtls_cipher_setup_psa( mbedtls_cipher_context_t *ctx,
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const mbedtls_cipher_info_t *cipher_info,
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size_t taglen )
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{
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psa_algorithm_t alg;
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mbedtls_cipher_context_psa *cipher_psa;
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if( NULL == cipher_info || NULL == ctx )
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return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
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/* Check that the underlying cipher mode and cipher type are
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* supported by the underlying PSA Crypto implementation. */
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alg = mbedtls_psa_translate_cipher_mode( cipher_info->mode, taglen );
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if( alg == 0 )
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return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
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if( mbedtls_psa_translate_cipher_type( cipher_info->type ) == 0 )
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return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
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memset( ctx, 0, sizeof( mbedtls_cipher_context_t ) );
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cipher_psa = mbedtls_calloc( 1, sizeof(mbedtls_cipher_context_psa ) );
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if( cipher_psa == NULL )
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return( MBEDTLS_ERR_CIPHER_ALLOC_FAILED );
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cipher_psa->alg = alg;
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ctx->cipher_ctx = cipher_psa;
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ctx->cipher_info = cipher_info;
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ctx->psa_enabled = 1;
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return( 0 );
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}
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#endif /* MBEDTLS_USE_PSA_CRYPTO */
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int mbedtls_cipher_setkey( mbedtls_cipher_context_t *ctx,
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const unsigned char *key,
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int key_bitlen,
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@ -218,6 +262,64 @@ int mbedtls_cipher_setkey( mbedtls_cipher_context_t *ctx,
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if( ctx->cipher_info == NULL )
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return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
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#if defined(MBEDTLS_USE_PSA_CRYPTO)
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if( ctx->psa_enabled == 1 )
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{
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mbedtls_cipher_context_psa * const cipher_psa =
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(mbedtls_cipher_context_psa *) ctx->cipher_ctx;
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size_t const key_bytelen = ( (size_t) key_bitlen + 7 ) / 8;
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psa_status_t status;
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psa_key_type_t key_type;
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psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
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/* PSA Crypto API only accepts byte-aligned keys. */
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if( key_bitlen % 8 != 0 )
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return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
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/* Don't allow keys to be set multiple times. */
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if( cipher_psa->slot_state != MBEDTLS_CIPHER_PSA_KEY_UNSET )
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return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
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key_type = mbedtls_psa_translate_cipher_type(
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ctx->cipher_info->type );
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if( key_type == 0 )
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return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
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psa_set_key_type( &attributes, key_type );
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/* Mbed TLS' cipher layer doesn't enforce the mode of operation
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* (encrypt vs. decrypt): it is possible to setup a key for encryption
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* and use it for AEAD decryption. Until tests relying on this
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* are changed, allow any usage in PSA. */
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psa_set_key_usage_flags( &attributes,
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/* mbedtls_psa_translate_cipher_operation( operation ); */
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PSA_KEY_USAGE_ENCRYPT | PSA_KEY_USAGE_DECRYPT );
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psa_set_key_algorithm( &attributes, cipher_psa->alg );
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status = psa_import_key( &attributes, key, key_bytelen,
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&cipher_psa->slot );
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switch( status )
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{
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case PSA_SUCCESS:
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break;
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case PSA_ERROR_INSUFFICIENT_MEMORY:
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return( MBEDTLS_ERR_CIPHER_ALLOC_FAILED );
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case PSA_ERROR_NOT_SUPPORTED:
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return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
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default:
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return( MBEDTLS_ERR_CIPHER_HW_ACCEL_FAILED );
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}
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/* Indicate that we own the key slot and need to
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* destroy it in mbedtls_cipher_free(). */
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cipher_psa->slot_state = MBEDTLS_CIPHER_PSA_KEY_OWNED;
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ctx->key_bitlen = key_bitlen;
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ctx->operation = operation;
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return( 0 );
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}
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#endif /* MBEDTLS_USE_PSA_CRYPTO */
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if( ( ctx->cipher_info->flags & MBEDTLS_CIPHER_VARIABLE_KEY_LEN ) == 0 &&
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(int) ctx->cipher_info->key_bitlen != key_bitlen )
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{
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@ -256,6 +358,15 @@ int mbedtls_cipher_set_iv( mbedtls_cipher_context_t *ctx,
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CIPHER_VALIDATE_RET( iv_len == 0 || iv != NULL );
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if( ctx->cipher_info == NULL )
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return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
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#if defined(MBEDTLS_USE_PSA_CRYPTO)
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if( ctx->psa_enabled == 1 )
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{
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/* While PSA Crypto has an API for multipart
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* operations, we currently don't make it
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* accessible through the cipher layer. */
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return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
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}
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#endif /* MBEDTLS_USE_PSA_CRYPTO */
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/* avoid buffer overflow in ctx->iv */
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if( iv_len > MBEDTLS_MAX_IV_LENGTH )
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@ -299,6 +410,15 @@ int mbedtls_cipher_reset( mbedtls_cipher_context_t *ctx )
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if( ctx->cipher_info == NULL )
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return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
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#if defined(MBEDTLS_USE_PSA_CRYPTO)
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if( ctx->psa_enabled == 1 )
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{
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/* We don't support resetting PSA-based
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* cipher contexts, yet. */
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return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
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}
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#endif /* MBEDTLS_USE_PSA_CRYPTO */
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ctx->unprocessed_len = 0;
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return( 0 );
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@ -313,6 +433,16 @@ int mbedtls_cipher_update_ad( mbedtls_cipher_context_t *ctx,
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if( ctx->cipher_info == NULL )
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return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
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#if defined(MBEDTLS_USE_PSA_CRYPTO)
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if( ctx->psa_enabled == 1 )
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{
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/* While PSA Crypto has an API for multipart
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* operations, we currently don't make it
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* accessible through the cipher layer. */
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return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
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}
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#endif /* MBEDTLS_USE_PSA_CRYPTO */
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#if defined(MBEDTLS_GCM_C)
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if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode )
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{
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@ -349,7 +479,7 @@ int mbedtls_cipher_update_ad( mbedtls_cipher_context_t *ctx,
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int mbedtls_cipher_update( mbedtls_cipher_context_t *ctx, const unsigned char *input,
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size_t ilen, unsigned char *output, size_t *olen )
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{
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int ret;
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int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
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size_t block_size;
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CIPHER_VALIDATE_RET( ctx != NULL );
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@ -359,8 +489,22 @@ int mbedtls_cipher_update( mbedtls_cipher_context_t *ctx, const unsigned char *i
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if( ctx->cipher_info == NULL )
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return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
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#if defined(MBEDTLS_USE_PSA_CRYPTO)
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if( ctx->psa_enabled == 1 )
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{
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/* While PSA Crypto has an API for multipart
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* operations, we currently don't make it
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* accessible through the cipher layer. */
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return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
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}
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#endif /* MBEDTLS_USE_PSA_CRYPTO */
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*olen = 0;
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block_size = mbedtls_cipher_get_block_size( ctx );
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if ( 0 == block_size )
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{
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return( MBEDTLS_ERR_CIPHER_INVALID_CONTEXT );
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}
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if( ctx->cipher_info->mode == MBEDTLS_MODE_ECB )
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{
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@ -396,11 +540,6 @@ int mbedtls_cipher_update( mbedtls_cipher_context_t *ctx, const unsigned char *i
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}
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#endif
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if ( 0 == block_size )
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{
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return( MBEDTLS_ERR_CIPHER_INVALID_CONTEXT );
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}
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if( input == output &&
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( ctx->unprocessed_len != 0 || ilen % block_size ) )
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{
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@ -459,11 +598,6 @@ int mbedtls_cipher_update( mbedtls_cipher_context_t *ctx, const unsigned char *i
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*/
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if( 0 != ilen )
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{
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if( 0 == block_size )
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{
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return( MBEDTLS_ERR_CIPHER_INVALID_CONTEXT );
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}
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/* Encryption: only cache partial blocks
|
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* Decryption w/ padding: always keep at least one whole block
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* Decryption w/o padding: only cache partial blocks
|
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@ -768,6 +902,16 @@ int mbedtls_cipher_finish( mbedtls_cipher_context_t *ctx,
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if( ctx->cipher_info == NULL )
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return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
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#if defined(MBEDTLS_USE_PSA_CRYPTO)
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if( ctx->psa_enabled == 1 )
|
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{
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/* While PSA Crypto has an API for multipart
|
||||
* operations, we currently don't make it
|
||||
* accessible through the cipher layer. */
|
||||
return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
|
||||
}
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||||
#endif /* MBEDTLS_USE_PSA_CRYPTO */
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||||
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||||
*olen = 0;
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||||
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if( MBEDTLS_MODE_CFB == ctx->cipher_info->mode ||
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@ -860,6 +1004,19 @@ int mbedtls_cipher_set_padding_mode( mbedtls_cipher_context_t *ctx,
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return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
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||||
}
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||||
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#if defined(MBEDTLS_USE_PSA_CRYPTO)
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||||
if( ctx->psa_enabled == 1 )
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||||
{
|
||||
/* While PSA Crypto knows about CBC padding
|
||||
* schemes, we currently don't make them
|
||||
* accessible through the cipher layer. */
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||||
if( mode != MBEDTLS_PADDING_NONE )
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||||
return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
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||||
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||||
return( 0 );
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||||
}
|
||||
#endif /* MBEDTLS_USE_PSA_CRYPTO */
|
||||
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||||
switch( mode )
|
||||
{
|
||||
#if defined(MBEDTLS_CIPHER_PADDING_PKCS7)
|
||||
@ -911,6 +1068,16 @@ int mbedtls_cipher_write_tag( mbedtls_cipher_context_t *ctx,
|
||||
if( MBEDTLS_ENCRYPT != ctx->operation )
|
||||
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
||||
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||||
#if defined(MBEDTLS_USE_PSA_CRYPTO)
|
||||
if( ctx->psa_enabled == 1 )
|
||||
{
|
||||
/* While PSA Crypto has an API for multipart
|
||||
* operations, we currently don't make it
|
||||
* accessible through the cipher layer. */
|
||||
return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
|
||||
}
|
||||
#endif /* MBEDTLS_USE_PSA_CRYPTO */
|
||||
|
||||
#if defined(MBEDTLS_GCM_C)
|
||||
if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode )
|
||||
return( mbedtls_gcm_finish( (mbedtls_gcm_context *) ctx->cipher_ctx,
|
||||
@ -924,8 +1091,8 @@ int mbedtls_cipher_write_tag( mbedtls_cipher_context_t *ctx,
|
||||
if ( tag_len != 16U )
|
||||
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
||||
|
||||
return( mbedtls_chachapoly_finish( (mbedtls_chachapoly_context*) ctx->cipher_ctx,
|
||||
tag ) );
|
||||
return( mbedtls_chachapoly_finish(
|
||||
(mbedtls_chachapoly_context*) ctx->cipher_ctx, tag ) );
|
||||
}
|
||||
#endif
|
||||
|
||||
@ -936,7 +1103,7 @@ int mbedtls_cipher_check_tag( mbedtls_cipher_context_t *ctx,
|
||||
const unsigned char *tag, size_t tag_len )
|
||||
{
|
||||
unsigned char check_tag[16];
|
||||
int ret;
|
||||
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
|
||||
|
||||
CIPHER_VALIDATE_RET( ctx != NULL );
|
||||
CIPHER_VALIDATE_RET( tag_len == 0 || tag != NULL );
|
||||
@ -948,23 +1115,41 @@ int mbedtls_cipher_check_tag( mbedtls_cipher_context_t *ctx,
|
||||
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
||||
}
|
||||
|
||||
#if defined(MBEDTLS_USE_PSA_CRYPTO)
|
||||
if( ctx->psa_enabled == 1 )
|
||||
{
|
||||
/* While PSA Crypto has an API for multipart
|
||||
* operations, we currently don't make it
|
||||
* accessible through the cipher layer. */
|
||||
return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
|
||||
}
|
||||
#endif /* MBEDTLS_USE_PSA_CRYPTO */
|
||||
|
||||
/* Status to return on a non-authenticated algorithm. It would make sense
|
||||
* to return MBEDTLS_ERR_CIPHER_INVALID_CONTEXT or perhaps
|
||||
* MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA, but at the time I write this our
|
||||
* unit tests assume 0. */
|
||||
ret = 0;
|
||||
|
||||
#if defined(MBEDTLS_GCM_C)
|
||||
if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode )
|
||||
{
|
||||
if( tag_len > sizeof( check_tag ) )
|
||||
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
||||
|
||||
if( 0 != ( ret = mbedtls_gcm_finish( (mbedtls_gcm_context *) ctx->cipher_ctx,
|
||||
check_tag, tag_len ) ) )
|
||||
if( 0 != ( ret = mbedtls_gcm_finish(
|
||||
(mbedtls_gcm_context *) ctx->cipher_ctx,
|
||||
check_tag, tag_len ) ) )
|
||||
{
|
||||
return( ret );
|
||||
}
|
||||
|
||||
/* Check the tag in "constant-time" */
|
||||
if( mbedtls_constant_time_memcmp( tag, check_tag, tag_len ) != 0 )
|
||||
return( MBEDTLS_ERR_CIPHER_AUTH_FAILED );
|
||||
|
||||
return( 0 );
|
||||
if( mbedtls_ct_memcmp( tag, check_tag, tag_len ) != 0 )
|
||||
{
|
||||
ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED;
|
||||
goto exit;
|
||||
}
|
||||
}
|
||||
#endif /* MBEDTLS_GCM_C */
|
||||
|
||||
@ -975,22 +1160,25 @@ int mbedtls_cipher_check_tag( mbedtls_cipher_context_t *ctx,
|
||||
if ( tag_len != sizeof( check_tag ) )
|
||||
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
||||
|
||||
ret = mbedtls_chachapoly_finish( (mbedtls_chachapoly_context*) ctx->cipher_ctx,
|
||||
check_tag );
|
||||
ret = mbedtls_chachapoly_finish(
|
||||
(mbedtls_chachapoly_context*) ctx->cipher_ctx, check_tag );
|
||||
if ( ret != 0 )
|
||||
{
|
||||
return( ret );
|
||||
}
|
||||
|
||||
/* Check the tag in "constant-time" */
|
||||
if( mbedtls_constant_time_memcmp( tag, check_tag, tag_len ) != 0 )
|
||||
return( MBEDTLS_ERR_CIPHER_AUTH_FAILED );
|
||||
|
||||
return( 0 );
|
||||
if( mbedtls_ct_memcmp( tag, check_tag, tag_len ) != 0 )
|
||||
{
|
||||
ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED;
|
||||
goto exit;
|
||||
}
|
||||
}
|
||||
#endif /* MBEDTLS_CHACHAPOLY_C */
|
||||
|
||||
return( 0 );
|
||||
exit:
|
||||
mbedtls_platform_zeroize( check_tag, tag_len );
|
||||
return( ret );
|
||||
}
|
||||
#endif /* MBEDTLS_GCM_C || MBEDTLS_CHACHAPOLY_C */
|
||||
|
||||
@ -1002,7 +1190,7 @@ int mbedtls_cipher_crypt( mbedtls_cipher_context_t *ctx,
|
||||
const unsigned char *input, size_t ilen,
|
||||
unsigned char *output, size_t *olen )
|
||||
{
|
||||
int ret;
|
||||
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
|
||||
size_t finish_olen;
|
||||
|
||||
CIPHER_VALIDATE_RET( ctx != NULL );
|
||||
@ -1011,16 +1199,79 @@ int mbedtls_cipher_crypt( mbedtls_cipher_context_t *ctx,
|
||||
CIPHER_VALIDATE_RET( output != NULL );
|
||||
CIPHER_VALIDATE_RET( olen != NULL );
|
||||
|
||||
#if defined(MBEDTLS_USE_PSA_CRYPTO)
|
||||
if( ctx->psa_enabled == 1 )
|
||||
{
|
||||
/* As in the non-PSA case, we don't check that
|
||||
* a key has been set. If not, the key slot will
|
||||
* still be in its default state of 0, which is
|
||||
* guaranteed to be invalid, hence the PSA-call
|
||||
* below will gracefully fail. */
|
||||
mbedtls_cipher_context_psa * const cipher_psa =
|
||||
(mbedtls_cipher_context_psa *) ctx->cipher_ctx;
|
||||
|
||||
psa_status_t status;
|
||||
psa_cipher_operation_t cipher_op = PSA_CIPHER_OPERATION_INIT;
|
||||
size_t part_len;
|
||||
|
||||
if( ctx->operation == MBEDTLS_DECRYPT )
|
||||
{
|
||||
status = psa_cipher_decrypt_setup( &cipher_op,
|
||||
cipher_psa->slot,
|
||||
cipher_psa->alg );
|
||||
}
|
||||
else if( ctx->operation == MBEDTLS_ENCRYPT )
|
||||
{
|
||||
status = psa_cipher_encrypt_setup( &cipher_op,
|
||||
cipher_psa->slot,
|
||||
cipher_psa->alg );
|
||||
}
|
||||
else
|
||||
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
||||
|
||||
/* In the following, we can immediately return on an error,
|
||||
* because the PSA Crypto API guarantees that cipher operations
|
||||
* are terminated by unsuccessful calls to psa_cipher_update(),
|
||||
* and by any call to psa_cipher_finish(). */
|
||||
if( status != PSA_SUCCESS )
|
||||
return( MBEDTLS_ERR_CIPHER_HW_ACCEL_FAILED );
|
||||
|
||||
if( ctx->cipher_info->mode != MBEDTLS_MODE_ECB )
|
||||
{
|
||||
status = psa_cipher_set_iv( &cipher_op, iv, iv_len );
|
||||
if( status != PSA_SUCCESS )
|
||||
return( MBEDTLS_ERR_CIPHER_HW_ACCEL_FAILED );
|
||||
}
|
||||
|
||||
status = psa_cipher_update( &cipher_op,
|
||||
input, ilen,
|
||||
output, ilen, olen );
|
||||
if( status != PSA_SUCCESS )
|
||||
return( MBEDTLS_ERR_CIPHER_HW_ACCEL_FAILED );
|
||||
|
||||
status = psa_cipher_finish( &cipher_op,
|
||||
output + *olen, ilen - *olen,
|
||||
&part_len );
|
||||
if( status != PSA_SUCCESS )
|
||||
return( MBEDTLS_ERR_CIPHER_HW_ACCEL_FAILED );
|
||||
|
||||
*olen += part_len;
|
||||
return( 0 );
|
||||
}
|
||||
#endif /* MBEDTLS_USE_PSA_CRYPTO */
|
||||
|
||||
if( ( ret = mbedtls_cipher_set_iv( ctx, iv, iv_len ) ) != 0 )
|
||||
return( ret );
|
||||
|
||||
if( ( ret = mbedtls_cipher_reset( ctx ) ) != 0 )
|
||||
return( ret );
|
||||
|
||||
if( ( ret = mbedtls_cipher_update( ctx, input, ilen, output, olen ) ) != 0 )
|
||||
if( ( ret = mbedtls_cipher_update( ctx, input, ilen,
|
||||
output, olen ) ) != 0 )
|
||||
return( ret );
|
||||
|
||||
if( ( ret = mbedtls_cipher_finish( ctx, output + *olen, &finish_olen ) ) != 0 )
|
||||
if( ( ret = mbedtls_cipher_finish( ctx, output + *olen,
|
||||
&finish_olen ) ) != 0 )
|
||||
return( ret );
|
||||
|
||||
*olen += finish_olen;
|
||||
@ -1030,30 +1281,55 @@ int mbedtls_cipher_crypt( mbedtls_cipher_context_t *ctx,
|
||||
|
||||
#if defined(MBEDTLS_CIPHER_MODE_AEAD)
|
||||
/*
|
||||
* Packet-oriented encryption for AEAD modes
|
||||
* Packet-oriented encryption for AEAD modes: internal function shared by
|
||||
* mbedtls_cipher_auth_encrypt() and mbedtls_cipher_auth_encrypt_ext().
|
||||
*/
|
||||
int mbedtls_cipher_auth_encrypt( mbedtls_cipher_context_t *ctx,
|
||||
static int mbedtls_cipher_aead_encrypt( mbedtls_cipher_context_t *ctx,
|
||||
const unsigned char *iv, size_t iv_len,
|
||||
const unsigned char *ad, size_t ad_len,
|
||||
const unsigned char *input, size_t ilen,
|
||||
unsigned char *output, size_t *olen,
|
||||
unsigned char *tag, size_t tag_len )
|
||||
{
|
||||
CIPHER_VALIDATE_RET( ctx != NULL );
|
||||
CIPHER_VALIDATE_RET( iv != NULL );
|
||||
CIPHER_VALIDATE_RET( ad_len == 0 || ad != NULL );
|
||||
CIPHER_VALIDATE_RET( ilen == 0 || input != NULL );
|
||||
CIPHER_VALIDATE_RET( output != NULL );
|
||||
CIPHER_VALIDATE_RET( olen != NULL );
|
||||
CIPHER_VALIDATE_RET( tag_len == 0 || tag != NULL );
|
||||
#if defined(MBEDTLS_USE_PSA_CRYPTO)
|
||||
if( ctx->psa_enabled == 1 )
|
||||
{
|
||||
/* As in the non-PSA case, we don't check that
|
||||
* a key has been set. If not, the key slot will
|
||||
* still be in its default state of 0, which is
|
||||
* guaranteed to be invalid, hence the PSA-call
|
||||
* below will gracefully fail. */
|
||||
mbedtls_cipher_context_psa * const cipher_psa =
|
||||
(mbedtls_cipher_context_psa *) ctx->cipher_ctx;
|
||||
|
||||
psa_status_t status;
|
||||
|
||||
/* PSA Crypto API always writes the authentication tag
|
||||
* at the end of the encrypted message. */
|
||||
if( output == NULL || tag != output + ilen )
|
||||
return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
|
||||
|
||||
status = psa_aead_encrypt( cipher_psa->slot,
|
||||
cipher_psa->alg,
|
||||
iv, iv_len,
|
||||
ad, ad_len,
|
||||
input, ilen,
|
||||
output, ilen + tag_len, olen );
|
||||
if( status != PSA_SUCCESS )
|
||||
return( MBEDTLS_ERR_CIPHER_HW_ACCEL_FAILED );
|
||||
|
||||
*olen -= tag_len;
|
||||
return( 0 );
|
||||
}
|
||||
#endif /* MBEDTLS_USE_PSA_CRYPTO */
|
||||
|
||||
#if defined(MBEDTLS_GCM_C)
|
||||
if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode )
|
||||
{
|
||||
*olen = ilen;
|
||||
return( mbedtls_gcm_crypt_and_tag( ctx->cipher_ctx, MBEDTLS_GCM_ENCRYPT, ilen,
|
||||
iv, iv_len, ad, ad_len, input, output,
|
||||
tag_len, tag ) );
|
||||
return( mbedtls_gcm_crypt_and_tag( ctx->cipher_ctx, MBEDTLS_GCM_ENCRYPT,
|
||||
ilen, iv, iv_len, ad, ad_len,
|
||||
input, output, tag_len, tag ) );
|
||||
}
|
||||
#endif /* MBEDTLS_GCM_C */
|
||||
#if defined(MBEDTLS_CCM_C)
|
||||
@ -1085,27 +1361,53 @@ int mbedtls_cipher_auth_encrypt( mbedtls_cipher_context_t *ctx,
|
||||
}
|
||||
|
||||
/*
|
||||
* Packet-oriented decryption for AEAD modes
|
||||
* Packet-oriented encryption for AEAD modes: internal function shared by
|
||||
* mbedtls_cipher_auth_encrypt() and mbedtls_cipher_auth_encrypt_ext().
|
||||
*/
|
||||
int mbedtls_cipher_auth_decrypt( mbedtls_cipher_context_t *ctx,
|
||||
static int mbedtls_cipher_aead_decrypt( mbedtls_cipher_context_t *ctx,
|
||||
const unsigned char *iv, size_t iv_len,
|
||||
const unsigned char *ad, size_t ad_len,
|
||||
const unsigned char *input, size_t ilen,
|
||||
unsigned char *output, size_t *olen,
|
||||
const unsigned char *tag, size_t tag_len )
|
||||
{
|
||||
CIPHER_VALIDATE_RET( ctx != NULL );
|
||||
CIPHER_VALIDATE_RET( iv != NULL );
|
||||
CIPHER_VALIDATE_RET( ad_len == 0 || ad != NULL );
|
||||
CIPHER_VALIDATE_RET( ilen == 0 || input != NULL );
|
||||
CIPHER_VALIDATE_RET( output != NULL );
|
||||
CIPHER_VALIDATE_RET( olen != NULL );
|
||||
CIPHER_VALIDATE_RET( tag_len == 0 || tag != NULL );
|
||||
#if defined(MBEDTLS_USE_PSA_CRYPTO)
|
||||
if( ctx->psa_enabled == 1 )
|
||||
{
|
||||
/* As in the non-PSA case, we don't check that
|
||||
* a key has been set. If not, the key slot will
|
||||
* still be in its default state of 0, which is
|
||||
* guaranteed to be invalid, hence the PSA-call
|
||||
* below will gracefully fail. */
|
||||
mbedtls_cipher_context_psa * const cipher_psa =
|
||||
(mbedtls_cipher_context_psa *) ctx->cipher_ctx;
|
||||
|
||||
psa_status_t status;
|
||||
|
||||
/* PSA Crypto API always writes the authentication tag
|
||||
* at the end of the encrypted message. */
|
||||
if( input == NULL || tag != input + ilen )
|
||||
return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
|
||||
|
||||
status = psa_aead_decrypt( cipher_psa->slot,
|
||||
cipher_psa->alg,
|
||||
iv, iv_len,
|
||||
ad, ad_len,
|
||||
input, ilen + tag_len,
|
||||
output, ilen, olen );
|
||||
if( status == PSA_ERROR_INVALID_SIGNATURE )
|
||||
return( MBEDTLS_ERR_CIPHER_AUTH_FAILED );
|
||||
else if( status != PSA_SUCCESS )
|
||||
return( MBEDTLS_ERR_CIPHER_HW_ACCEL_FAILED );
|
||||
|
||||
return( 0 );
|
||||
}
|
||||
#endif /* MBEDTLS_USE_PSA_CRYPTO */
|
||||
|
||||
#if defined(MBEDTLS_GCM_C)
|
||||
if( MBEDTLS_MODE_GCM == ctx->cipher_info->mode )
|
||||
{
|
||||
int ret;
|
||||
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
|
||||
|
||||
*olen = ilen;
|
||||
ret = mbedtls_gcm_auth_decrypt( ctx->cipher_ctx, ilen,
|
||||
@ -1121,7 +1423,7 @@ int mbedtls_cipher_auth_decrypt( mbedtls_cipher_context_t *ctx,
|
||||
#if defined(MBEDTLS_CCM_C)
|
||||
if( MBEDTLS_MODE_CCM == ctx->cipher_info->mode )
|
||||
{
|
||||
int ret;
|
||||
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
|
||||
|
||||
*olen = ilen;
|
||||
ret = mbedtls_ccm_auth_decrypt( ctx->cipher_ctx, ilen,
|
||||
@ -1137,7 +1439,7 @@ int mbedtls_cipher_auth_decrypt( mbedtls_cipher_context_t *ctx,
|
||||
#if defined(MBEDTLS_CHACHAPOLY_C)
|
||||
if ( MBEDTLS_CIPHER_CHACHA20_POLY1305 == ctx->cipher_info->type )
|
||||
{
|
||||
int ret;
|
||||
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
|
||||
|
||||
/* ChachaPoly has fixed length nonce and MAC (tag) */
|
||||
if ( ( iv_len != ctx->cipher_info->iv_size ) ||
|
||||
@ -1159,6 +1461,166 @@ int mbedtls_cipher_auth_decrypt( mbedtls_cipher_context_t *ctx,
|
||||
|
||||
return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
|
||||
}
|
||||
|
||||
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
|
||||
/*
|
||||
* Packet-oriented encryption for AEAD modes: public legacy function.
|
||||
*/
|
||||
int mbedtls_cipher_auth_encrypt( mbedtls_cipher_context_t *ctx,
|
||||
const unsigned char *iv, size_t iv_len,
|
||||
const unsigned char *ad, size_t ad_len,
|
||||
const unsigned char *input, size_t ilen,
|
||||
unsigned char *output, size_t *olen,
|
||||
unsigned char *tag, size_t tag_len )
|
||||
{
|
||||
CIPHER_VALIDATE_RET( ctx != NULL );
|
||||
CIPHER_VALIDATE_RET( iv_len == 0 || iv != NULL );
|
||||
CIPHER_VALIDATE_RET( ad_len == 0 || ad != NULL );
|
||||
CIPHER_VALIDATE_RET( ilen == 0 || input != NULL );
|
||||
CIPHER_VALIDATE_RET( ilen == 0 || output != NULL );
|
||||
CIPHER_VALIDATE_RET( olen != NULL );
|
||||
CIPHER_VALIDATE_RET( tag_len == 0 || tag != NULL );
|
||||
|
||||
return( mbedtls_cipher_aead_encrypt( ctx, iv, iv_len, ad, ad_len,
|
||||
input, ilen, output, olen,
|
||||
tag, tag_len ) );
|
||||
}
|
||||
|
||||
/*
|
||||
* Packet-oriented decryption for AEAD modes: public legacy function.
|
||||
*/
|
||||
int mbedtls_cipher_auth_decrypt( mbedtls_cipher_context_t *ctx,
|
||||
const unsigned char *iv, size_t iv_len,
|
||||
const unsigned char *ad, size_t ad_len,
|
||||
const unsigned char *input, size_t ilen,
|
||||
unsigned char *output, size_t *olen,
|
||||
const unsigned char *tag, size_t tag_len )
|
||||
{
|
||||
CIPHER_VALIDATE_RET( ctx != NULL );
|
||||
CIPHER_VALIDATE_RET( iv_len == 0 || iv != NULL );
|
||||
CIPHER_VALIDATE_RET( ad_len == 0 || ad != NULL );
|
||||
CIPHER_VALIDATE_RET( ilen == 0 || input != NULL );
|
||||
CIPHER_VALIDATE_RET( ilen == 0 || output != NULL );
|
||||
CIPHER_VALIDATE_RET( olen != NULL );
|
||||
CIPHER_VALIDATE_RET( tag_len == 0 || tag != NULL );
|
||||
|
||||
return( mbedtls_cipher_aead_decrypt( ctx, iv, iv_len, ad, ad_len,
|
||||
input, ilen, output, olen,
|
||||
tag, tag_len ) );
|
||||
}
|
||||
#endif /* !MBEDTLS_DEPRECATED_REMOVED */
|
||||
#endif /* MBEDTLS_CIPHER_MODE_AEAD */
|
||||
|
||||
#if defined(MBEDTLS_CIPHER_MODE_AEAD) || defined(MBEDTLS_NIST_KW_C)
|
||||
/*
|
||||
* Packet-oriented encryption for AEAD/NIST_KW: public function.
|
||||
*/
|
||||
int mbedtls_cipher_auth_encrypt_ext( mbedtls_cipher_context_t *ctx,
|
||||
const unsigned char *iv, size_t iv_len,
|
||||
const unsigned char *ad, size_t ad_len,
|
||||
const unsigned char *input, size_t ilen,
|
||||
unsigned char *output, size_t output_len,
|
||||
size_t *olen, size_t tag_len )
|
||||
{
|
||||
CIPHER_VALIDATE_RET( ctx != NULL );
|
||||
CIPHER_VALIDATE_RET( iv_len == 0 || iv != NULL );
|
||||
CIPHER_VALIDATE_RET( ad_len == 0 || ad != NULL );
|
||||
CIPHER_VALIDATE_RET( ilen == 0 || input != NULL );
|
||||
CIPHER_VALIDATE_RET( output != NULL );
|
||||
CIPHER_VALIDATE_RET( olen != NULL );
|
||||
|
||||
#if defined(MBEDTLS_NIST_KW_C)
|
||||
if(
|
||||
#if defined(MBEDTLS_USE_PSA_CRYPTO)
|
||||
ctx->psa_enabled == 0 &&
|
||||
#endif
|
||||
( MBEDTLS_MODE_KW == ctx->cipher_info->mode ||
|
||||
MBEDTLS_MODE_KWP == ctx->cipher_info->mode ) )
|
||||
{
|
||||
mbedtls_nist_kw_mode_t mode = ( MBEDTLS_MODE_KW == ctx->cipher_info->mode ) ?
|
||||
MBEDTLS_KW_MODE_KW : MBEDTLS_KW_MODE_KWP;
|
||||
|
||||
/* There is no iv, tag or ad associated with KW and KWP,
|
||||
* so these length should be 0 as documented. */
|
||||
if( iv_len != 0 || tag_len != 0 || ad_len != 0 )
|
||||
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
||||
|
||||
(void) iv;
|
||||
(void) ad;
|
||||
|
||||
return( mbedtls_nist_kw_wrap( ctx->cipher_ctx, mode, input, ilen,
|
||||
output, olen, output_len ) );
|
||||
}
|
||||
#endif /* MBEDTLS_NIST_KW_C */
|
||||
|
||||
#if defined(MBEDTLS_CIPHER_MODE_AEAD)
|
||||
/* AEAD case: check length before passing on to shared function */
|
||||
if( output_len < ilen + tag_len )
|
||||
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
||||
|
||||
int ret = mbedtls_cipher_aead_encrypt( ctx, iv, iv_len, ad, ad_len,
|
||||
input, ilen, output, olen,
|
||||
output + ilen, tag_len );
|
||||
*olen += tag_len;
|
||||
return( ret );
|
||||
#else
|
||||
return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
|
||||
#endif /* MBEDTLS_CIPHER_MODE_AEAD */
|
||||
}
|
||||
|
||||
/*
|
||||
* Packet-oriented decryption for AEAD/NIST_KW: public function.
|
||||
*/
|
||||
int mbedtls_cipher_auth_decrypt_ext( mbedtls_cipher_context_t *ctx,
|
||||
const unsigned char *iv, size_t iv_len,
|
||||
const unsigned char *ad, size_t ad_len,
|
||||
const unsigned char *input, size_t ilen,
|
||||
unsigned char *output, size_t output_len,
|
||||
size_t *olen, size_t tag_len )
|
||||
{
|
||||
CIPHER_VALIDATE_RET( ctx != NULL );
|
||||
CIPHER_VALIDATE_RET( iv_len == 0 || iv != NULL );
|
||||
CIPHER_VALIDATE_RET( ad_len == 0 || ad != NULL );
|
||||
CIPHER_VALIDATE_RET( ilen == 0 || input != NULL );
|
||||
CIPHER_VALIDATE_RET( output_len == 0 || output != NULL );
|
||||
CIPHER_VALIDATE_RET( olen != NULL );
|
||||
|
||||
#if defined(MBEDTLS_NIST_KW_C)
|
||||
if(
|
||||
#if defined(MBEDTLS_USE_PSA_CRYPTO)
|
||||
ctx->psa_enabled == 0 &&
|
||||
#endif
|
||||
( MBEDTLS_MODE_KW == ctx->cipher_info->mode ||
|
||||
MBEDTLS_MODE_KWP == ctx->cipher_info->mode ) )
|
||||
{
|
||||
mbedtls_nist_kw_mode_t mode = ( MBEDTLS_MODE_KW == ctx->cipher_info->mode ) ?
|
||||
MBEDTLS_KW_MODE_KW : MBEDTLS_KW_MODE_KWP;
|
||||
|
||||
/* There is no iv, tag or ad associated with KW and KWP,
|
||||
* so these length should be 0 as documented. */
|
||||
if( iv_len != 0 || tag_len != 0 || ad_len != 0 )
|
||||
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
||||
|
||||
(void) iv;
|
||||
(void) ad;
|
||||
|
||||
return( mbedtls_nist_kw_unwrap( ctx->cipher_ctx, mode, input, ilen,
|
||||
output, olen, output_len ) );
|
||||
}
|
||||
#endif /* MBEDTLS_NIST_KW_C */
|
||||
|
||||
#if defined(MBEDTLS_CIPHER_MODE_AEAD)
|
||||
/* AEAD case: check length before passing on to shared function */
|
||||
if( ilen < tag_len || output_len < ilen - tag_len )
|
||||
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
|
||||
|
||||
return( mbedtls_cipher_aead_decrypt( ctx, iv, iv_len, ad, ad_len,
|
||||
input, ilen - tag_len, output, olen,
|
||||
input + ilen - tag_len, tag_len ) );
|
||||
#else
|
||||
return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
|
||||
#endif /* MBEDTLS_CIPHER_MODE_AEAD */
|
||||
}
|
||||
#endif /* MBEDTLS_CIPHER_MODE_AEAD || MBEDTLS_NIST_KW_C */
|
||||
|
||||
#endif /* MBEDTLS_CIPHER_C */
|
||||
|
Reference in New Issue
Block a user