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/*
* Copyright (c) 2018-2019, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
#ifndef __TFM_CRYPTO_VENEERS_H__
#define __TFM_CRYPTO_VENEERS_H__
#ifdef __cplusplus
extern "C" {
#endif
#include "tfm_crypto_defs.h"
#include "psa_crypto.h"
#include "crypto_psa_wrappers.h"
/**
* \brief Import the key data in the provided key slot (veneer function)
*
* \param[in] key Key slot
* \param[in] type Key type
* \param[in] data Key data to import
* \param[in] data_length Length in bytes of the data field
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_import_key(psa_key_slot_t key,
psa_key_type_t type,
const uint8_t *data,
size_t data_length);
/**
* \brief Destroy the key in the provided key slot (veneer function)
*
* \param[in] key Key slot
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_destroy_key(psa_key_slot_t key);
/**
* \brief Retrieve key information for the provided key slot (veneer function)
*
* \param[in] key Key slot
* \param[out] type Key type associated to the key slot requested
* \param[out] bits Length in bits of the key in the requested slot
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_get_key_information(
psa_key_slot_t key,
psa_key_type_t *type,
size_t *bits);
/**
* \brief Export the key contained in the provided key slot (veneer function)
*
* \param[in] key Key slot
* \param[out] data Buffer to hold the exported key
* \param[in] data_size Length of the buffer pointed to by data
* \param[out] data_length Length of the exported key
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_export_key(psa_key_slot_t key,
uint8_t *data,
size_t data_size,
size_t *data_length);
/**
* \brief Set the initialisation vector on the provided cipher operation (veneer
* function)
*
* \param[in] operation Cipher operation context
* \param[in] iv Buffer that contains the IV
* \param[in] iv_length Length of the provided IV
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_cipher_set_iv(
psa_cipher_operation_t *operation,
const unsigned char *iv,
size_t iv_length);
/**
* \brief Set the cipher operation using the provided algorithm and key slot,
* for encryption context (veneer function)
*
* \note A successful call to this function initialises a cipher operation
* context which will be referred using the operation parameter
*
* \param[out] operation Cipher operation context
* \param[in] key Key slot to bind to the cipher context
* \param[in] alg Algorithm to use for the cipher operation
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_cipher_encrypt_setup(
psa_cipher_operation_t *operation,
psa_key_slot_t key,
psa_algorithm_t alg);
/**
* \brief Set the cipher operation using the provided algorithm and key slot,
* for decryption context (veneer function)
*
* \note A successful call to this function initialises a cipher operation
* context which will be referred using the operation parameter
*
* \param[out] operation Cipher operation context
* \param[in] key Key slot to bind to the cipher context
* \param[in] alg Algorithm to use for the cipher operation
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_cipher_decrypt_setup(
psa_cipher_operation_t *operation,
psa_key_slot_t key,
psa_algorithm_t alg);
/**
* \brief Update the cipher context with a chunk of input data to create a
* chunk of encrypted output data (for encryption contexts), or to
* decrypt a chunk of encrypted input data to obtain decrypted data
* (for decryption contexts) (veneer function)
*
* \param[in] operation Cipher operation context
* \param[in] input_s Pointer to the struct containing input parameters
* \param[out] output_s Pointer to the struct containing output parameters
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_cipher_update(
psa_cipher_operation_t *operation,
struct psa_cipher_update_input *input_s,
struct psa_cipher_update_output *output_s);
/**
* \brief Finalise a cipher context flushing out any remaining block of
* output data (veneer function)
*
* \note A successful call to this function releases the cipher operation
* context provided as parameter
*
* \param[in/out] operation Cipher operation context
* \param[out] output Buffer containing output data
* \param[in] output_size Size of the output buffer
* \param[out] output_length Size of the produced output
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_cipher_finish(
psa_cipher_operation_t *operation,
uint8_t *output,
size_t output_size,
size_t *output_length);
/**
* \brief Abort a cipher operation, clear the operation context provided
* (veneer function)
*
* \note A successful call to this function releases the cipher operation
* context provided as parameter
*
* \param[in/out] operation Cipher operation context
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_cipher_abort(
psa_cipher_operation_t *operation);
/**
* \brief Setup a hash operation with the provided algorithm (veneer function)
*
* \note A successful call to this function initialises a hash operation
* context which will be referred using the operation parameter
*
* \param[out] operation Hash operation context
* \param[in] alg Algorithm chosen as hash
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_hash_setup(
psa_hash_operation_t *operation,
psa_algorithm_t alg);
/**
* \brief Add a new input chunk to the data for which the final hash value
* will be computed (veneer function)
*
* \param[in/out] operation Hash operation context
* \param[in] input Buffer containing the input data
* \param[in] input_length Size of the provided input data
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_hash_update(
psa_hash_operation_t *operation,
const uint8_t *input,
size_t input_length);
/**
* \brief Finalise a hash context operation producing the final hash value
* (veneer function)
*
* \note A successful call to this function releases the hash operation
* context provided as parameter
*
* \param[in/out] operation Hash operation context
* \param[out] hash Buffer containing hash data
* \param[in] hash_size Size of the hash buffer
* \param[out] hash_length Size of the produced hash
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_hash_finish(
psa_hash_operation_t *operation,
uint8_t *hash,
size_t hash_size,
size_t *hash_length);
/**
* \brief Finalise a hash context operation, verifying that the final hash
* value matches the one provided as input (veneer function)
*
* \note A successful call to this function releases the hash operation
* context provided as parameter. The hash operation is released
* also in case TFM_CRYPTO_ERR_PSA_ERROR_INVALID_SIGNATURE is returned
*
* \param[in/out] operation Hash operation context
* \param[in] hash Buffer containing the provided hash value
* \param[in] hash_length Size of the provided hash value
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_hash_verify(
psa_hash_operation_t *operation,
const uint8_t *hash,
size_t hash_length);
/**
* \brief Abort a hash operation, clears the operation context provided
* (veneer function)
*
* \note A successful call to this function releases the hash operation
* context provided as parameter
*
* \param[in/out] operation Hash operation context
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_hash_abort(
psa_hash_operation_t *operation);
/**
* \brief Start a MAC operation with the provided algorithm (for signing)
* (veneer function)
*
* \note A successful call to this function initialises a MAC operation
* context which will be referred using the operation parameter
*
* \param[out] operation MAC operation context
* \param[in] key Key slot to bind to the MAC context
* \param[in] alg Algorithm chosen as MAC
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_mac_sign_setup(
psa_mac_operation_t *operation,
psa_key_slot_t key,
psa_algorithm_t alg);
/**
* \brief Start a MAC operation with the provided algorithm (for verifying)
* (veneer function)
*
* \note A successful call to this function initialises a MAC operation
* context which will be referred using the operation parameter
*
* \param[out] operation MAC operation context
* \param[in] key Key slot to bind to the MAC context
* \param[in] alg Algorithm chosen as MAC
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_mac_verify_setup(
psa_mac_operation_t *operation,
psa_key_slot_t key,
psa_algorithm_t alg);
/**
* \brief Adds a new input chunk to the data for which the final MAC value
* will be computed (veneer function)
*
* \param[in/out] operation MAC operation context
* \param[in] input Buffer containing the input data
* \param[in] input_length Size of the provided input data
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_mac_update(
psa_mac_operation_t *operation,
const uint8_t *input,
size_t input_length);
/**
* \brief Finalises a MAC context operation producing the final MAC value
* (veneer function)
*
* \note A successful call to this function releases the MAC operation
* context provided as parameter
*
* \param[in/out] operation MAC operation context
* \param[out] mac Buffer containing MAC data
* \param[in] mac_size Size of the MAC buffer
* \param[out] mac_length Size of the produced MAC
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_mac_sign_finish(
psa_mac_operation_t *operation,
uint8_t *mac,
size_t mac_size,
size_t *mac_length);
/**
* \brief Finalise a MAC context operation, verifying that the final MAC value
* matches the one provided as input (veneer function)
*
* \note A successful call to this function releases the MAC operation
* context provided as parameter. The MAC operation is released
* also in case TFM_CRYPTO_ERR_PSA_ERROR_INVALID_SIGNATURE is returned
*
* \param[in/out] operation MAC operation context
* \param[in] mac Buffer containing the provided MAC value
* \param[in] mac_length Size of the provided MAC value
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_mac_verify_finish(
psa_mac_operation_t *operation,
const uint8_t *mac,
size_t mac_length);
/**
* \brief Abort a MAC operation, clear the operation context provided
* (veneer function)
*
* \note A successful call to this function releases the MAC operation
* context provided as parameter
*
* \param[in/out] operation MAC operation context
*
* \return Return values as described in \ref tfm_crypto_err_t
*/
enum tfm_crypto_err_t tfm_crypto_veneer_mac_abort(
psa_mac_operation_t *operation);
#ifdef __cplusplus
}
#endif
#endif /* __TFM_CRYPTO_VENEERS_H__ */