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# ========================
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# ========================
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
824 lines
38 KiB
C
824 lines
38 KiB
C
/**
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* \file psa/crypto_accel_driver.h
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* \brief PSA cryptography accelerator driver module
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*
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* This header declares types and function signatures for cryptography
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* drivers that access key material directly. This is meant for
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* on-chip cryptography accelerators.
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*
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* This file is part of the PSA Crypto Driver Model, containing functions for
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* driver developers to implement to enable hardware to be called in a
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* standardized way by a PSA Cryptographic API implementation. The functions
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* comprising the driver model, which driver authors implement, are not
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* intended to be called by application developers.
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*/
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/*
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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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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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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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#ifndef PSA_CRYPTO_ACCEL_DRIVER_H
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#define PSA_CRYPTO_ACCEL_DRIVER_H
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#include "crypto_driver_common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** \defgroup driver_digest Hardware-Accelerated Message Digests
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*
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* Generation and authentication of Message Digests (aka hashes) must be done
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* in parts using the following sequence:
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* - `psa_drv_hash_setup_t`
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* - `psa_drv_hash_update_t`
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* - `psa_drv_hash_update_t`
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* - ...
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* - `psa_drv_hash_finish_t`
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*
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* If a previously started Message Digest operation needs to be terminated
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* before the `psa_drv_hash_finish_t` operation is complete, it should be aborted
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* by the `psa_drv_hash_abort_t`. Failure to do so may result in allocated
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* resources not being freed or in other undefined behavior.
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*/
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/**@{*/
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/** \brief The hardware-specific hash context structure
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*
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* The contents of this structure are implementation dependent and are
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* therefore not described here
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*/
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typedef struct psa_drv_hash_context_s psa_drv_hash_context_t;
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/** \brief The function prototype for the start operation of a hash (message
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* digest) operation
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*
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* Functions that implement this prototype should be named in the following
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* convention:
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* ~~~~~~~~~~~~~{.c}
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* psa_drv_hash_<ALGO>_setup
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* ~~~~~~~~~~~~~
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* Where `ALGO` is the name of the underlying hash function
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*
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* \param[in,out] p_context A structure that will contain the
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* hardware-specific hash context
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*
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* \retval PSA_SUCCESS Success.
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*/
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typedef psa_status_t (*psa_drv_hash_setup_t)(psa_drv_hash_context_t *p_context);
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/** \brief The function prototype for the update operation of a hash (message
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* digest) operation
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*
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* Functions that implement this prototype should be named in the following
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* convention:
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* ~~~~~~~~~~~~~{.c}
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* psa_drv_hash_<ALGO>_update
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* ~~~~~~~~~~~~~
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* Where `ALGO` is the name of the underlying algorithm
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*
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* \param[in,out] p_context A hardware-specific structure for the
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* previously-established hash operation to be
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* continued
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* \param[in] p_input A buffer containing the message to be appended
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* to the hash operation
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* \param[in] input_length The size in bytes of the input message buffer
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*/
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typedef psa_status_t (*psa_drv_hash_update_t)(psa_drv_hash_context_t *p_context,
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const uint8_t *p_input,
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size_t input_length);
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/** \brief The function prototype for the finish operation of a hash (message
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* digest) operation
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*
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* Functions that implement this prototype should be named in the following
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* convention:
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* ~~~~~~~~~~~~~{.c}
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* psa_drv_hash_<ALGO>_finish
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* ~~~~~~~~~~~~~
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* Where `ALGO` is the name of the underlying algorithm
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*
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* \param[in,out] p_context A hardware-specific structure for the
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* previously started hash operation to be
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* fiinished
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* \param[out] p_output A buffer where the generated digest will be
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* placed
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* \param[in] output_size The size in bytes of the buffer that has been
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* allocated for the `p_output` buffer
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* \param[out] p_output_length The number of bytes placed in `p_output` after
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* success
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*
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* \retval PSA_SUCCESS
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* Success.
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*/
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typedef psa_status_t (*psa_drv_hash_finish_t)(psa_drv_hash_context_t *p_context,
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uint8_t *p_output,
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size_t output_size,
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size_t *p_output_length);
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/** \brief The function prototype for the abort operation of a hash (message
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* digest) operation
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*
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* Functions that implement this prototype should be named in the following
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* convention:
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* ~~~~~~~~~~~~~{.c}
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* psa_drv_hash_<ALGO>_abort
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* ~~~~~~~~~~~~~
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* Where `ALGO` is the name of the underlying algorithm
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*
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* \param[in,out] p_context A hardware-specific structure for the previously
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* started hash operation to be aborted
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*/
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typedef void (*psa_drv_hash_abort_t)(psa_drv_hash_context_t *p_context);
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/**@}*/
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/** \defgroup accel_mac Hardware-Accelerated Message Authentication Code
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* Generation and authentication of Message Authentication Codes (MACs) using
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* cryptographic accelerators can be done either as a single function call (via the
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* `psa_drv_accel_mac_generate_t` or `psa_drv_accel_mac_verify_t`
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* functions), or in parts using the following sequence:
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* - `psa_drv_accel_mac_setup_t`
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* - `psa_drv_accel_mac_update_t`
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* - `psa_drv_accel_mac_update_t`
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* - ...
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* - `psa_drv_accel_mac_finish_t` or `psa_drv_accel_mac_finish_verify_t`
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*
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* If a previously started MAC operation needs to be terminated, it
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* should be done so by the `psa_drv_accel_mac_abort_t`. Failure to do so may
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* result in allocated resources not being freed or in other undefined
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* behavior.
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*
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*/
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/**@{*/
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/** \brief The hardware-accelerator-specific MAC context structure
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*
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* The contents of this structure are implementation dependent and are
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* therefore not described here.
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*/
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typedef struct psa_drv_accel_mac_context_s psa_drv_accel_mac_context_t;
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/** \brief The function prototype for the setup operation of a
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* hardware-accelerated MAC operation
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*
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* Functions that implement this prototype should be named in the following
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* convention:
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* ~~~~~~~~~~~~~{.c}
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* psa_drv_accel_mac_<ALGO>_<MAC_VARIANT>_setup
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* ~~~~~~~~~~~~~
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* Where `ALGO` is the name of the underlying primitive, and `MAC_VARIANT`
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* is the specific variant of a MAC operation (such as HMAC or CMAC)
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*
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* \param[in,out] p_context A structure that will contain the
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* hardware-specific MAC context
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* \param[in] p_key A buffer containing the cleartext key material
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* to be used in the operation
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* \param[in] key_length The size in bytes of the key material
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*
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* \retval PSA_SUCCESS
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* Success.
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*/
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typedef psa_status_t (*psa_drv_accel_mac_setup_t)(psa_drv_accel_mac_context_t *p_context,
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const uint8_t *p_key,
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size_t key_length);
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/** \brief The function prototype for the update operation of a
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* hardware-accelerated MAC operation
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*
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* Functions that implement this prototype should be named in the following
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* convention:
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* ~~~~~~~~~~~~~{.c}
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* psa_drv_accel_mac_<ALGO>_<MAC_VARIANT>_update
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* ~~~~~~~~~~~~~
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* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT`
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* is the specific variant of a MAC operation (such as HMAC or CMAC)
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*
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* \param[in,out] p_context A hardware-specific structure for the
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* previously-established MAC operation to be
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* continued
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* \param[in] p_input A buffer containing the message to be appended
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* to the MAC operation
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* \param[in] input_length The size in bytes of the input message buffer
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*/
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typedef psa_status_t (*psa_drv_accel_mac_update_t)(psa_drv_accel_mac_context_t *p_context,
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const uint8_t *p_input,
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size_t input_length);
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/** \brief The function prototype for the finish operation of a
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* hardware-accelerated MAC operation
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*
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* Functions that implement this prototype should be named in the following
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* convention:
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* ~~~~~~~~~~~~~{.c}
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* psa_drv_accel_mac_<ALGO>_<MAC_VARIANT>_finish
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* ~~~~~~~~~~~~~
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* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
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* the specific variant of a MAC operation (such as HMAC or CMAC)
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*
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* \param[in,out] p_context A hardware-specific structure for the
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* previously started MAC operation to be
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* finished
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* \param[out] p_mac A buffer where the generated MAC will be placed
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* \param[in] mac_length The size in bytes of the buffer that has been
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* allocated for the `p_mac` buffer
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*
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* \retval PSA_SUCCESS
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* Success.
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*/
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typedef psa_status_t (*psa_drv_accel_mac_finish_t)(psa_drv_accel_mac_context_t *p_context,
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uint8_t *p_mac,
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size_t mac_length);
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/** \brief The function prototype for the finish and verify operation of a
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* hardware-accelerated MAC operation
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*
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* Functions that implement this prototype should be named in the following
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* convention:
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* ~~~~~~~~~~~~~{.c}
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* psa_drv_accel_mac_<ALGO>_<MAC_VARIANT>_finish_verify
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* ~~~~~~~~~~~~~
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* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
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* the specific variant of a MAC operation (such as HMAC or CMAC)
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*
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* \param[in,out] p_context A hardware-specific structure for the
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* previously started MAC operation to be
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* verified and finished
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* \param[in] p_mac A buffer containing the MAC that will be used
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* for verification
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* \param[in] mac_length The size in bytes of the data in the `p_mac`
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* buffer
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*
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* \retval PSA_SUCCESS
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* The operation completed successfully and the comparison matched
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*/
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typedef psa_status_t (*psa_drv_accel_mac_finish_verify_t)(psa_drv_accel_mac_context_t *p_context,
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const uint8_t *p_mac,
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size_t mac_length);
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/** \brief The function prototype for the abort operation for a previously
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* started hardware-accelerated MAC operation
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*
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* Functions that implement this prototype should be named in the following
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* convention:
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* ~~~~~~~~~~~~~{.c}
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* psa_drv_accel_mac_<ALGO>_<MAC_VARIANT>_abort
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* ~~~~~~~~~~~~~
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* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
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* the specific variant of a MAC operation (such as HMAC or CMAC)
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*
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* \param[in,out] p_context A hardware-specific structure for the
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* previously started MAC operation to be
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* aborted
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*
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*/
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typedef psa_status_t (*psa_drv_accel_mac_abort_t)(psa_drv_accel_mac_context_t *p_context);
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/** \brief The function prototype for the one-shot operation of a
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* hardware-accelerated MAC operation
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*
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* Functions that implement this prototype should be named in the following
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* convention:
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* ~~~~~~~~~~~~~{.c}
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* psa_drv_accel_mac_<ALGO>_<MAC_VARIANT>
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* ~~~~~~~~~~~~~
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* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
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* the specific variant of a MAC operation (such as HMAC or CMAC)
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*
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* \param[in] p_input A buffer containing the data to be MACed
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* \param[in] input_length The length in bytes of the `p_input` data
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* \param[in] p_key A buffer containing the key material to be used
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* for the MAC operation
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* \param[in] key_length The length in bytes of the `p_key` data
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* \param[in] alg The algorithm to be performed
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* \param[out] p_mac The buffer where the resulting MAC will be placed
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* upon success
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* \param[in] mac_length The length in bytes of the `p_mac` buffer
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*/
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typedef psa_status_t (*psa_drv_accel_mac_t)(const uint8_t *p_input,
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size_t input_length,
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const uint8_t *p_key,
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size_t key_length,
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psa_algorithm_t alg,
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uint8_t *p_mac,
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size_t mac_length);
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/** \brief The function prototype for the one-shot hardware-accelerated MAC
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* Verify operation
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*
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* Functions that implement this prototype should be named in the following
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* convention:
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* ~~~~~~~~~~~~~{.c}
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* psa_drv_accel_mac_<ALGO>_<MAC_VARIANT>_verify
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* ~~~~~~~~~~~~~
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* Where `ALGO` is the name of the underlying algorithm, and `MAC_VARIANT` is
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* the specific variant of a MAC operation (such as HMAC or CMAC)
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*
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* \param[in] p_input A buffer containing the data to be MACed
|
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* \param[in] input_length The length in bytes of the `p_input` data
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* \param[in] p_key A buffer containing the key material to be used
|
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* for the MAC operation
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* \param[in] key_length The length in bytes of the `p_key` data
|
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* \param[in] alg The algorithm to be performed
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* \param[in] p_mac The MAC data to be compared
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* \param[in] mac_length The length in bytes of the `p_mac` buffer
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*
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* \retval PSA_SUCCESS
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* The operation completed successfully and the comparison matched
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*/
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typedef psa_status_t (*psa_drv_accel_mac_verify_t)(const uint8_t *p_input,
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size_t input_length,
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const uint8_t *p_key,
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size_t key_length,
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psa_algorithm_t alg,
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const uint8_t *p_mac,
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size_t mac_length);
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/**@}*/
|
|
|
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/** \defgroup accel_cipher Hardware-Accelerated Block Ciphers
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* Encryption and Decryption using hardware-acceleration in block modes other
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* than ECB must be done in multiple parts, using the following flow:
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* - `psa_drv_accel_ciphersetup_t`
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* - `psa_drv_accel_cipher_set_iv_t` (optional depending upon block mode)
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* - `psa_drv_accel_cipher_update_t`
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* - `psa_drv_accel_cipher_update_t`
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|
* - ...
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* - `psa_drv_accel_cipher_finish_t`
|
|
*
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|
* If a previously started hardware-accelerated Cipher operation needs to be
|
|
* terminated, it should be done so by the `psa_drv_accel_cipher_abort_t`.
|
|
* Failure to do so may result in allocated resources not being freed or in
|
|
* other undefined behavior.
|
|
*/
|
|
/**@{*/
|
|
|
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/** \brief The hardware-accelerator-specific cipher context structure
|
|
*
|
|
* The contents of this structure are implementation dependent and are
|
|
* therefore not described here.
|
|
*/
|
|
typedef struct psa_drv_accel_cipher_context_s psa_drv_accel_cipher_context_t;
|
|
|
|
/** \brief The function prototype for the setup operation of
|
|
* hardware-accelerated block cipher operations.
|
|
* Functions that implement this prototype should be named in the following
|
|
* conventions:
|
|
* ~~~~~~~~~~~~~{.c}
|
|
* psa_drv_accel_cipher_setup_<CIPHER_NAME>_<MODE>
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|
* ~~~~~~~~~~~~~
|
|
* Where
|
|
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
|
|
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
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|
*
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|
* For stream ciphers:
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|
* ~~~~~~~~~~~~~{.c}
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|
* psa_drv_accel_cipher_setup_<CIPHER_NAME>
|
|
* ~~~~~~~~~~~~~
|
|
* Where `CIPHER_NAME` is the name of a stream cipher (i.e. RC4)
|
|
*
|
|
* \param[in,out] p_context A structure that will contain the
|
|
* hardware-specific cipher context
|
|
* \param[in] direction Indicates if the operation is an encrypt or a
|
|
* decrypt
|
|
* \param[in] p_key_data A buffer containing the cleartext key material
|
|
* to be used in the operation
|
|
* \param[in] key_data_size The size in bytes of the key material
|
|
*
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|
* \retval PSA_SUCCESS
|
|
*/
|
|
typedef psa_status_t (*psa_drv_accel_cipher_setup_t)(psa_drv_accel_cipher_context_t *p_context,
|
|
psa_encrypt_or_decrypt_t direction,
|
|
const uint8_t *p_key_data,
|
|
size_t key_data_size);
|
|
|
|
/** \brief The function prototype for the set initialization vector operation
|
|
* of hardware-accelerated block cipher operations
|
|
* Functions that implement this prototype should be named in the following
|
|
* convention:
|
|
* ~~~~~~~~~~~~~{.c}
|
|
* psa_drv_accel_cipher_set_iv_<CIPHER_NAME>_<MODE>
|
|
* ~~~~~~~~~~~~~
|
|
* Where
|
|
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
|
|
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
|
|
*
|
|
* \param[in,out] p_context A structure that contains the previously setup
|
|
* hardware-specific cipher context
|
|
* \param[in] p_iv A buffer containing the initialization vecotr
|
|
* \param[in] iv_length The size in bytes of the contents of `p_iv`
|
|
*
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|
* \retval PSA_SUCCESS
|
|
*/
|
|
typedef psa_status_t (*psa_drv_accel_cipher_set_iv_t)(psa_drv_accel_cipher_context_t *p_context,
|
|
const uint8_t *p_iv,
|
|
size_t iv_length);
|
|
|
|
/** \brief The function prototype for the update operation of
|
|
* hardware-accelerated block cipher operations.
|
|
*
|
|
* Functions that implement this prototype should be named in the following
|
|
* convention:
|
|
* ~~~~~~~~~~~~~{.c}
|
|
* psa_drv_accel_cipher_update_<CIPHER_NAME>_<MODE>
|
|
* ~~~~~~~~~~~~~
|
|
* Where
|
|
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
|
|
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
|
|
*
|
|
* \param[in,out] p_context A hardware-specific structure for the
|
|
* previously started cipher operation
|
|
* \param[in] p_input A buffer containing the data to be
|
|
* encrypted or decrypted
|
|
* \param[in] input_size The size in bytes of the `p_input` buffer
|
|
* \param[out] p_output A caller-allocated buffer where the
|
|
* generated output will be placed
|
|
* \param[in] output_size The size in bytes of the `p_output` buffer
|
|
* \param[out] p_output_length After completion, will contain the number
|
|
* of bytes placed in the `p_output` buffer
|
|
*
|
|
* \retval PSA_SUCCESS
|
|
*/
|
|
typedef psa_status_t (*psa_drv_accel_cipher_update_t)(psa_drv_accel_cipher_context_t *p_context,
|
|
const uint8_t *p_input,
|
|
size_t input_size,
|
|
uint8_t *p_output,
|
|
size_t output_size,
|
|
size_t *p_output_length);
|
|
|
|
/** \brief The function prototype for the finish operation of
|
|
* hardware-accelerated block cipher operations.
|
|
*
|
|
* Functions that implement this prototype should be named in the following
|
|
* convention:
|
|
* ~~~~~~~~~~~~~{.c}
|
|
* psa_drv_accel_cipher_finish_<CIPHER_NAME>_<MODE>
|
|
* ~~~~~~~~~~~~~
|
|
* Where
|
|
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
|
|
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
|
|
*
|
|
* \param[in,out] p_context A hardware-specific structure for the
|
|
* previously started cipher operation
|
|
* \param[out] p_output A caller-allocated buffer where the generated
|
|
* output will be placed
|
|
* \param[in] output_size The size in bytes of the `p_output` buffer
|
|
* \param[out] p_output_length After completion, will contain the number of
|
|
* bytes placed in the `p_output` buffer
|
|
*
|
|
* \retval PSA_SUCCESS
|
|
*/
|
|
typedef psa_status_t (*psa_drv_accel_cipher_finish_t)(psa_drv_accel_cipher_context_t *p_context,
|
|
uint8_t *p_output,
|
|
size_t output_size,
|
|
size_t *p_output_length);
|
|
|
|
/** \brief The function prototype for the abort operation of
|
|
* hardware-accelerated block cipher operations.
|
|
*
|
|
* Functions that implement the following prototype should be named in the
|
|
* following convention:
|
|
* ~~~~~~~~~~~~~{.c}
|
|
* psa_drv_accel_cipher_abort_<CIPHER_NAME>_<MODE>
|
|
* ~~~~~~~~~~~~~
|
|
* Where
|
|
* - `CIPHER_NAME` is the name of the underlying block cipher (i.e. AES or DES)
|
|
* - `MODE` is the block mode of the cipher operation (i.e. CBC or CTR)
|
|
*
|
|
* \param[in,out] p_context A hardware-specific structure for the
|
|
* previously started cipher operation
|
|
*
|
|
* \retval PSA_SUCCESS
|
|
*/
|
|
typedef psa_status_t (*psa_drv_accel_cipher_abort_t)(psa_drv_accel_cipher_context_t *p_context);
|
|
|
|
/**@}*/
|
|
|
|
/** \defgroup accel_aead Hardware-Accelerated Authenticated Encryption with Additional Data
|
|
*
|
|
* Hardware-accelerated Authenticated Encryption with Additional Data (AEAD)
|
|
* operations must be done in one function call. While this creates a burden
|
|
* for implementers as there must be sufficient space in memory for the entire
|
|
* message, it prevents decrypted data from being made available before the
|
|
* authentication operation is complete and the data is known to be authentic.
|
|
*/
|
|
/**@{*/
|
|
|
|
/** \brief The function prototype for the hardware-accelerated authenticated
|
|
* encryption operation.
|
|
*
|
|
* Functions that implement this prototype should be named in the following
|
|
* convention:
|
|
* ~~~~~~~~~~~~~{.c}
|
|
* psa_drv_accel_aead_<ALGO>_encrypt
|
|
* ~~~~~~~~~~~~~
|
|
* Where `ALGO` is the name of the AEAD algorithm
|
|
*
|
|
* \param[in] p_key A pointer to the key material
|
|
* \param[in] key_length The size in bytes of the key material
|
|
* \param[in] alg The AEAD algorithm to compute
|
|
* (\c PSA_ALG_XXX value such that
|
|
* #PSA_ALG_IS_AEAD(`alg`) is true)
|
|
* \param[in] nonce Nonce or IV to use
|
|
* \param[in] nonce_length Size of the `nonce` buffer in bytes
|
|
* \param[in] additional_data Additional data that will be MACed
|
|
* but not encrypted.
|
|
* \param[in] additional_data_length Size of `additional_data` in bytes
|
|
* \param[in] plaintext Data that will be MACed and
|
|
* encrypted.
|
|
* \param[in] plaintext_length Size of `plaintext` in bytes
|
|
* \param[out] ciphertext Output buffer for the authenticated and
|
|
* encrypted data. The additional data is
|
|
* not part of this output. For algorithms
|
|
* where the encrypted data and the
|
|
* authentication tag are defined as
|
|
* separate outputs, the authentication
|
|
* tag is appended to the encrypted data.
|
|
* \param[in] ciphertext_size Size of the `ciphertext` buffer in
|
|
* bytes
|
|
* This must be at least
|
|
* #PSA_AEAD_ENCRYPT_OUTPUT_SIZE(`alg`,
|
|
* `plaintext_length`).
|
|
* \param[out] ciphertext_length On success, the size of the output in
|
|
* the `ciphertext` buffer
|
|
*
|
|
* \retval #PSA_SUCCESS
|
|
*
|
|
*/
|
|
typedef psa_status_t (*psa_drv_accel_aead_encrypt_t)(const uint8_t *p_key,
|
|
size_t key_length,
|
|
psa_algorithm_t alg,
|
|
const uint8_t *nonce,
|
|
size_t nonce_length,
|
|
const uint8_t *additional_data,
|
|
size_t additional_data_length,
|
|
const uint8_t *plaintext,
|
|
size_t plaintext_length,
|
|
uint8_t *ciphertext,
|
|
size_t ciphertext_size,
|
|
size_t *ciphertext_length);
|
|
|
|
/** \brief The function prototype for the hardware-accelerated authenticated
|
|
* decryption operation.
|
|
*
|
|
* Functions that implement this prototype should be named in the following
|
|
* convention:
|
|
* ~~~~~~~~~~~~~{.c}
|
|
* psa_drv_accel_aead_<ALGO>_decrypt
|
|
* ~~~~~~~~~~~~~
|
|
* Where `ALGO` is the name of the AEAD algorithm
|
|
* \param[in] p_key A pointer to the key material
|
|
* \param[in] key_length The size in bytes of the key material
|
|
* \param[in] alg The AEAD algorithm to compute
|
|
* (\c PSA_ALG_XXX value such that
|
|
* #PSA_ALG_IS_AEAD(`alg`) is true)
|
|
* \param[in] nonce Nonce or IV to use
|
|
* \param[in] nonce_length Size of the `nonce` buffer in bytes
|
|
* \param[in] additional_data Additional data that has been MACed
|
|
* but not encrypted
|
|
* \param[in] additional_data_length Size of `additional_data` in bytes
|
|
* \param[in] ciphertext Data that has been MACed and
|
|
* encrypted
|
|
* For algorithms where the encrypted data
|
|
* and the authentication tag are defined
|
|
* as separate inputs, the buffer must
|
|
* contain the encrypted data followed by
|
|
* the authentication tag.
|
|
* \param[in] ciphertext_length Size of `ciphertext` in bytes
|
|
* \param[out] plaintext Output buffer for the decrypted data
|
|
* \param[in] plaintext_size Size of the `plaintext` buffer in
|
|
* bytes
|
|
* This must be at least
|
|
* #PSA_AEAD_DECRYPT_OUTPUT_SIZE(`alg`,
|
|
* `ciphertext_length`).
|
|
* \param[out] plaintext_length On success, the size of the output
|
|
* in the \b plaintext buffer
|
|
*
|
|
* \retval #PSA_SUCCESS
|
|
* Success.
|
|
*/
|
|
typedef psa_status_t (*psa_drv_accel_aead_decrypt_t)(const uint8_t *p_key,
|
|
size_t key_length,
|
|
psa_algorithm_t alg,
|
|
const uint8_t *nonce,
|
|
size_t nonce_length,
|
|
const uint8_t *additional_data,
|
|
size_t additional_data_length,
|
|
const uint8_t *ciphertext,
|
|
size_t ciphertext_length,
|
|
uint8_t *plaintext,
|
|
size_t plaintext_size,
|
|
size_t *plaintext_length);
|
|
|
|
/**@}*/
|
|
|
|
/** \defgroup accel_asymmetric Hardware-Accelerated Asymmetric Cryptography
|
|
*
|
|
* Since the amount of data that can (or should) be encrypted or signed using
|
|
* asymmetric keys is limited by the key size, hardware-accelerated asymmetric
|
|
* key operations must be done in single function calls.
|
|
*/
|
|
/**@{*/
|
|
|
|
|
|
/**
|
|
* \brief The function prototype for the hardware-accelerated asymmetric sign
|
|
* operation.
|
|
*
|
|
* Functions that implement this prototype should be named in the following
|
|
* convention:
|
|
* ~~~~~~~~~~~~~{.c}
|
|
* psa_drv_accel_asymmetric_<ALGO>_sign
|
|
* ~~~~~~~~~~~~~
|
|
* Where `ALGO` is the name of the signing algorithm
|
|
*
|
|
* This function supports any asymmetric-key output from psa_export_key() as
|
|
* the buffer in \p p_key. Refer to the documentation of \ref
|
|
* psa_export_key() for the formats.
|
|
*
|
|
* \param[in] p_key A buffer containing the private key
|
|
* material
|
|
* \param[in] key_size The size in bytes of the `p_key` data
|
|
* \param[in] alg A signature algorithm that is compatible
|
|
* with the type of `p_key`
|
|
* \param[in] p_hash The hash or message to sign
|
|
* \param[in] hash_length Size of the `p_hash` buffer in bytes
|
|
* \param[out] p_signature Buffer where the signature is to be written
|
|
* \param[in] signature_size Size of the `p_signature` buffer in bytes
|
|
* \param[out] p_signature_length On success, the number of bytes
|
|
* that make up the returned signature value
|
|
*
|
|
* \retval PSA_SUCCESS
|
|
*/
|
|
typedef psa_status_t (*psa_drv_accel_asymmetric_sign_t)(const uint8_t *p_key,
|
|
size_t key_size,
|
|
psa_algorithm_t alg,
|
|
psa_key_type_t key_type,
|
|
const uint8_t *p_hash,
|
|
size_t hash_length,
|
|
uint8_t *p_signature,
|
|
size_t signature_size,
|
|
size_t *p_signature_length);
|
|
|
|
/**
|
|
* \brief The function prototype for the hardware-accelerated signature verify
|
|
* operation
|
|
*
|
|
* Functions that implement this prototype should be named in the following
|
|
* convention:
|
|
* ~~~~~~~~~~~~~{.c}
|
|
* psa_drv_accel_asymmetric_<ALGO>_verify
|
|
* ~~~~~~~~~~~~~
|
|
* Where `ALGO` is the name of the signing algorithm
|
|
*
|
|
* This function supports any output from \ref psa_export_public_key() as the
|
|
* buffer in \p p_key. Refer to the documentation of \ref
|
|
* psa_export_public_key() for the format of public keys and to the
|
|
* documentation of \ref psa_export_key() for the format for other key types.
|
|
*
|
|
* \param[in] p_key A buffer containing the public key material
|
|
* \param[in] key_size The size in bytes of the `p_key` data
|
|
* \param[in] alg A signature algorithm that is compatible with
|
|
* the type of `key`
|
|
* \param[in] p_hash The hash or message whose signature is to be
|
|
* verified
|
|
* \param[in] hash_length Size of the `p_hash` buffer in bytes
|
|
* \param[in] p_signature Buffer containing the signature to verify
|
|
* \param[in] signature_length Size of the `p_signature` buffer in bytes
|
|
*
|
|
* \retval PSA_SUCCESS
|
|
* The signature is valid.
|
|
*/
|
|
typedef psa_status_t (*psa_drv_accel_asymmetric_verify_t)(const uint8_t *p_key,
|
|
size_t key_size,
|
|
psa_algorithm_t alg,
|
|
psa_key_type_t key_type,
|
|
const uint8_t *p_hash,
|
|
size_t hash_length,
|
|
const uint8_t *p_signature,
|
|
size_t signature_length);
|
|
|
|
/**
|
|
* \brief The function prototype for the hardware-accelerated asymmetric
|
|
* encrypt operation
|
|
*
|
|
* Functions that implement this prototype should be named in the following
|
|
* convention:
|
|
* ~~~~~~~~~~~~~{.c}
|
|
* psa_drv_accel_asymmetric_<ALGO>_encrypt
|
|
* ~~~~~~~~~~~~~
|
|
* Where `ALGO` is the name of the encryption algorithm
|
|
*
|
|
* This function supports any output from \ref psa_export_public_key() as the
|
|
* buffer in \p p_key. Refer to the documentation of \ref
|
|
* psa_export_public_key() for the format of public keys and to the
|
|
* documentation of \ref psa_export_key() for the format for other key types.
|
|
*
|
|
* \param[in] p_key A buffer containing the public key material
|
|
* \param[in] key_size The size in bytes of the `p_key` data
|
|
* \param[in] alg An asymmetric encryption algorithm that is
|
|
* compatible with the type of `key`
|
|
* \param[in] p_input The message to encrypt
|
|
* \param[in] input_length Size of the `p_input` buffer in bytes
|
|
* \param[in] p_salt A salt or label, if supported by the
|
|
* encryption algorithm
|
|
* If the algorithm does not support a
|
|
* salt, pass `NULL`
|
|
* If the algorithm supports an optional
|
|
* salt and you do not want to pass a salt,
|
|
* pass `NULL`.
|
|
* For #PSA_ALG_RSA_PKCS1V15_CRYPT, no salt is
|
|
* supported.
|
|
* \param[in] salt_length Size of the `p_salt` buffer in bytes
|
|
* If `p_salt` is `NULL`, pass 0.
|
|
* \param[out] p_output Buffer where the encrypted message is to
|
|
* be written
|
|
* \param[in] output_size Size of the `p_output` buffer in bytes
|
|
* \param[out] p_output_length On success, the number of bytes
|
|
* that make up the returned output
|
|
*
|
|
* \retval PSA_SUCCESS
|
|
*/
|
|
typedef psa_status_t (*psa_drv_accel_asymmetric_encrypt_t)(const uint8_t *p_key,
|
|
size_t key_size,
|
|
psa_algorithm_t alg,
|
|
psa_key_type_t key_type,
|
|
const uint8_t *p_input,
|
|
size_t input_length,
|
|
const uint8_t *p_salt,
|
|
size_t salt_length,
|
|
uint8_t *p_output,
|
|
size_t output_size,
|
|
size_t *p_output_length);
|
|
|
|
/**
|
|
* \brief The function prototype for the hardware=acce;erated asymmetric
|
|
* decrypt operation
|
|
*
|
|
* Functions that implement this prototype should be named in the following
|
|
* convention:
|
|
* ~~~~~~~~~~~~~{.c}
|
|
* psa_drv_accel_asymmetric_<ALGO>_decrypt
|
|
* ~~~~~~~~~~~~~
|
|
* Where `ALGO` is the name of the encryption algorithm
|
|
*
|
|
* This function supports any asymmetric-key output from psa_export_key() as
|
|
* the buffer in \p p_key. Refer to the documentation of \ref
|
|
* psa_export_key() for the formats.
|
|
*
|
|
* \param[in] p_key A buffer containing the private key material
|
|
* \param[in] key_size The size in bytes of the `p_key` data
|
|
* \param[in] alg An asymmetric encryption algorithm that is
|
|
* compatible with the type of `key`
|
|
* \param[in] p_input The message to decrypt
|
|
* \param[in] input_length Size of the `p_input` buffer in bytes
|
|
* \param[in] p_salt A salt or label, if supported by the
|
|
* encryption algorithm
|
|
* If the algorithm does not support a
|
|
* salt, pass `NULL`.
|
|
* If the algorithm supports an optional
|
|
* salt and you do not want to pass a salt,
|
|
* pass `NULL`.
|
|
* For #PSA_ALG_RSA_PKCS1V15_CRYPT, no salt is
|
|
* supported
|
|
* \param[in] salt_length Size of the `p_salt` buffer in bytes
|
|
* If `p_salt` is `NULL`, pass 0
|
|
* \param[out] p_output Buffer where the decrypted message is to
|
|
* be written
|
|
* \param[in] output_size Size of the `p_output` buffer in bytes
|
|
* \param[out] p_output_length On success, the number of bytes
|
|
* that make up the returned output
|
|
*
|
|
* \retval PSA_SUCCESS
|
|
*/
|
|
typedef psa_status_t (*psa_drv_accel_asymmetric_decrypt_t)(const uint8_t *p_key,
|
|
size_t key_size,
|
|
psa_algorithm_t alg,
|
|
psa_key_type_t key_type,
|
|
const uint8_t *p_input,
|
|
size_t input_length,
|
|
const uint8_t *p_salt,
|
|
size_t salt_length,
|
|
uint8_t *p_output,
|
|
size_t output_size,
|
|
size_t *p_output_length);
|
|
|
|
/**@}*/
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* PSA_CRYPTO_ACCEL_DRIVER_H */
|