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v/thirdparty/mbedtls/library/psa_crypto_cipher.h

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/*
* PSA cipher driver entry points
*/
/*
* 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.
*/
#ifndef PSA_CRYPTO_CIPHER_H
#define PSA_CRYPTO_CIPHER_H
#include <mbedtls/cipher.h>
#include <psa/crypto.h>
/** Get Mbed TLS cipher information given the cipher algorithm PSA identifier
* as well as the PSA type and size of the key to be used with the cipher
* algorithm.
*
* \param alg PSA cipher algorithm identifier
* \param key_type PSA key type
* \param key_bits Size of the key in bits
* \param[out] cipher_id Mbed TLS cipher algorithm identifier
*
* \return The Mbed TLS cipher information of the cipher algorithm.
* \c NULL if the PSA cipher algorithm is not supported.
*/
const mbedtls_cipher_info_t *mbedtls_cipher_info_from_psa(
psa_algorithm_t alg, psa_key_type_t key_type, size_t key_bits,
mbedtls_cipher_id_t *cipher_id );
/**
* \brief Set the key for a multipart symmetric encryption operation.
*
* \note The signature of this function is that of a PSA driver
* cipher_encrypt_setup entry point. This function behaves as a
* cipher_encrypt_setup entry point as defined in the PSA driver
* interface specification for transparent drivers.
*
* \param[in,out] operation The operation object to set up. It has been
* initialized as per the documentation for
* #psa_cipher_operation_t and not yet in use.
* \param[in] attributes The attributes of the key to use for the
* operation.
* \param[in] key_buffer The buffer containing the key context.
* \param[in] key_buffer_size Size of the \p key_buffer buffer in bytes.
* \param[in] alg The cipher algorithm to compute
* (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_CIPHER(\p alg) is true).
*
* \retval #PSA_SUCCESS
* \retval #PSA_ERROR_NOT_SUPPORTED
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
* \retval #PSA_ERROR_CORRUPTION_DETECTED
*/
psa_status_t mbedtls_psa_cipher_encrypt_setup(
mbedtls_psa_cipher_operation_t *operation,
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
psa_algorithm_t alg );
/**
* \brief Set the key for a multipart symmetric decryption operation.
*
* \note The signature of this function is that of a PSA driver
* cipher_decrypt_setup entry point. This function behaves as a
* cipher_decrypt_setup entry point as defined in the PSA driver
* interface specification for transparent drivers.
*
* \param[in,out] operation The operation object to set up. It has been
* initialized as per the documentation for
* #psa_cipher_operation_t and not yet in use.
* \param[in] attributes The attributes of the key to use for the
* operation.
* \param[in] key_buffer The buffer containing the key context.
* \param[in] key_buffer_size Size of the \p key_buffer buffer in bytes.
* \param[in] alg The cipher algorithm to compute
* (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_CIPHER(\p alg) is true).
*
* \retval #PSA_SUCCESS
* \retval #PSA_ERROR_NOT_SUPPORTED
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
* \retval #PSA_ERROR_CORRUPTION_DETECTED
*/
psa_status_t mbedtls_psa_cipher_decrypt_setup(
mbedtls_psa_cipher_operation_t *operation,
const psa_key_attributes_t *attributes,
const uint8_t *key_buffer, size_t key_buffer_size,
psa_algorithm_t alg );
/** Set the IV for a symmetric encryption or decryption operation.
*
* This function sets the IV (initialization vector), nonce
* or initial counter value for the encryption or decryption operation.
*
* \note The signature of this function is that of a PSA driver
* cipher_set_iv entry point. This function behaves as a
* cipher_set_iv entry point as defined in the PSA driver
* interface specification for transparent drivers.
*
* \param[in,out] operation Active cipher operation.
* \param[in] iv Buffer containing the IV to use.
* \param[in] iv_length Size of the IV in bytes. It is guaranteed by
* the core to be less or equal to
* PSA_CIPHER_IV_MAX_SIZE.
*
* \retval #PSA_SUCCESS
* \retval #PSA_ERROR_INVALID_ARGUMENT
* The size of \p iv is not acceptable for the chosen algorithm,
* or the chosen algorithm does not use an IV.
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
*/
psa_status_t mbedtls_psa_cipher_set_iv(
mbedtls_psa_cipher_operation_t *operation,
const uint8_t *iv, size_t iv_length );
/** Encrypt or decrypt a message fragment in an active cipher operation.
*
* \note The signature of this function is that of a PSA driver
* cipher_update entry point. This function behaves as a
* cipher_update entry point as defined in the PSA driver
* interface specification for transparent drivers.
*
* \param[in,out] operation Active cipher operation.
* \param[in] input Buffer containing the message fragment to
* encrypt or decrypt.
* \param[in] input_length Size of the \p input buffer in bytes.
* \param[out] output Buffer where the output is to be written.
* \param[in] output_size Size of the \p output buffer in bytes.
* \param[out] output_length On success, the number of bytes
* that make up the returned output.
*
* \retval #PSA_SUCCESS
* \retval #PSA_ERROR_BUFFER_TOO_SMALL
* The size of the \p output buffer is too small.
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
*/
psa_status_t mbedtls_psa_cipher_update(
mbedtls_psa_cipher_operation_t *operation,
const uint8_t *input, size_t input_length,
uint8_t *output, size_t output_size, size_t *output_length );
/** Finish encrypting or decrypting a message in a cipher operation.
*
* \note The signature of this function is that of a PSA driver
* cipher_finish entry point. This function behaves as a
* cipher_finish entry point as defined in the PSA driver
* interface specification for transparent drivers.
*
* \param[in,out] operation Active cipher operation.
* \param[out] output Buffer where the output is to be written.
* \param[in] output_size Size of the \p output buffer in bytes.
* \param[out] output_length On success, the number of bytes
* that make up the returned output.
*
* \retval #PSA_SUCCESS
* \retval #PSA_ERROR_INVALID_ARGUMENT
* The total input size passed to this operation is not valid for
* this particular algorithm. For example, the algorithm is a based
* on block cipher and requires a whole number of blocks, but the
* total input size is not a multiple of the block size.
* \retval #PSA_ERROR_INVALID_PADDING
* This is a decryption operation for an algorithm that includes
* padding, and the ciphertext does not contain valid padding.
* \retval #PSA_ERROR_BUFFER_TOO_SMALL
* The size of the \p output buffer is too small.
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
*/
psa_status_t mbedtls_psa_cipher_finish(
mbedtls_psa_cipher_operation_t *operation,
uint8_t *output, size_t output_size, size_t *output_length );
/** Abort a cipher operation.
*
* Aborting an operation frees all associated resources except for the
* \p operation structure itself. Once aborted, the operation object
* can be reused for another operation.
*
* \note The signature of this function is that of a PSA driver
* cipher_abort entry point. This function behaves as a
* cipher_abort entry point as defined in the PSA driver
* interface specification for transparent drivers.
*
* \param[in,out] operation Initialized cipher operation.
*
* \retval #PSA_SUCCESS
*/
psa_status_t mbedtls_psa_cipher_abort( mbedtls_psa_cipher_operation_t *operation );
/** Encrypt a message using a symmetric cipher.
*
* \note The signature of this function is that of a PSA driver
* cipher_encrypt entry point. This function behaves as a
* cipher_encrypt entry point as defined in the PSA driver
* interface specification for transparent drivers.
*
* \param[in] attributes The attributes of the key to use for the
* operation.
* \param[in] key_buffer The buffer containing the key context.
* \param[in] key_buffer_size Size of the \p key_buffer buffer in bytes.
* \param[in] alg The cipher algorithm to compute
* (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_CIPHER(\p alg) is true).
* \param[in] iv Buffer containing the IV for encryption. The
* IV has been generated by the core.
* \param[in] iv_length Size of the \p iv in bytes.
* \param[in] input Buffer containing the message to encrypt.
* \param[in] input_length Size of the \p input buffer in bytes.
* \param[in,out] output Buffer where the output is to be written.
* \param[in] output_size Size of the \p output buffer in bytes.
* \param[out] output_length On success, the number of bytes that make up
* the returned output. Initialized to zero
* by the core.
*
* \retval #PSA_SUCCESS
* \retval #PSA_ERROR_NOT_SUPPORTED
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
* \retval #PSA_ERROR_CORRUPTION_DETECTED
* \retval #PSA_ERROR_BUFFER_TOO_SMALL
* The size of the \p output buffer is too small.
* \retval #PSA_ERROR_INVALID_ARGUMENT
* The size \p iv_length is not acceptable for the chosen algorithm,
* or the chosen algorithm does not use an IV.
* The total input size passed to this operation is not valid for
* this particular algorithm. For example, the algorithm is a based
* on block cipher and requires a whole number of blocks, but the
* total input size is not a multiple of the block size.
* \retval #PSA_ERROR_INVALID_PADDING
* This is a decryption operation for an algorithm that includes
* padding, and the ciphertext does not contain valid padding.
*/
psa_status_t mbedtls_psa_cipher_encrypt( const psa_key_attributes_t *attributes,
const uint8_t *key_buffer,
size_t key_buffer_size,
psa_algorithm_t alg,
const uint8_t *iv,
size_t iv_length,
const uint8_t *input,
size_t input_length,
uint8_t *output,
size_t output_size,
size_t *output_length );
/** Decrypt a message using a symmetric cipher.
*
* \note The signature of this function is that of a PSA driver
* cipher_decrypt entry point. This function behaves as a
* cipher_decrypt entry point as defined in the PSA driver
* interface specification for transparent drivers.
*
* \param[in] attributes The attributes of the key to use for the
* operation.
* \param[in] key_buffer The buffer containing the key context.
* \param[in] key_buffer_size Size of the \p key_buffer buffer in bytes.
* \param[in] alg The cipher algorithm to compute
* (\c PSA_ALG_XXX value such that
* #PSA_ALG_IS_CIPHER(\p alg) is true).
* \param[in] input Buffer containing the iv and the ciphertext.
* \param[in] input_length Size of the \p input buffer in bytes.
* \param[out] output Buffer where the output is to be written.
* \param[in] output_size Size of the \p output buffer in bytes.
* \param[out] output_length On success, the number of bytes that make up
* the returned output. Initialized to zero
* by the core.
*
* \retval #PSA_SUCCESS
* \retval #PSA_ERROR_NOT_SUPPORTED
* \retval #PSA_ERROR_INSUFFICIENT_MEMORY
* \retval #PSA_ERROR_CORRUPTION_DETECTED
* \retval #PSA_ERROR_BUFFER_TOO_SMALL
* The size of the \p output buffer is too small.
* \retval #PSA_ERROR_INVALID_ARGUMENT
* The size of \p iv is not acceptable for the chosen algorithm,
* or the chosen algorithm does not use an IV.
* The total input size passed to this operation is not valid for
* this particular algorithm. For example, the algorithm is a based
* on block cipher and requires a whole number of blocks, but the
* total input size is not a multiple of the block size.
* \retval #PSA_ERROR_INVALID_PADDING
* This is a decryption operation for an algorithm that includes
* padding, and the ciphertext does not contain valid padding.
*/
psa_status_t mbedtls_psa_cipher_decrypt( const psa_key_attributes_t *attributes,
const uint8_t *key_buffer,
size_t key_buffer_size,
psa_algorithm_t alg,
const uint8_t *input,
size_t input_length,
uint8_t *output,
size_t output_size,
size_t *output_length );
#endif /* PSA_CRYPTO_CIPHER_H */