223 lines
7.8 KiB
C
223 lines
7.8 KiB
C
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/*
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* Copyright (C) 2017 C-SKY Microsystems Co., Ltd. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may 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,
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* WITHOUT 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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/******************************************************************************
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* @file drv_rsa.h
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* @brief header file for rsa driver
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* @version V1.0
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* @date 02. June 2017
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******************************************************************************/
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#ifndef _CSI_RSA_H_
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#define _CSI_RSA_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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#include <drv_common.h>
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/// definition for rsa handle.
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typedef void *rsa_handle_t;
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/****** RSA specific error codes *****/
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typedef enum {
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RSA_ERROR_DATA_BITS , ///< Specified number of Data bits not supported
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RSA_ERROR_ENDIAN ///< Specified endian not supported
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} drv_rsa_error_e;
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/*----- RSA Control Codes: Mode Parameters: Data Bits -----*/
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typedef enum {
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RSA_DATA_BITS_192 = 0, ///< 192 Data bits
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RSA_DATA_BITS_256 , ///< 256 Data bits
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RSA_DATA_BITS_512 , ///< 512 Data bits
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RSA_DATA_BITS_1024 , ///< 1024 Data bits (default)
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RSA_DATA_BITS_2048 ///< 2048 Data bits
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} rsa_data_bits_e;
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/*----- RSA Control Codes: Mode Parameters: Endian -----*/
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typedef enum {
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RSA_ENDIAN_MODE_LITTLE = 0, ///< RSA Little Endian Mode
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RSA_ENDIAN_MODE_BIG ///< RSA Big Endian Mode
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} rsa_endian_mode_e;
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typedef enum {
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RSA_PADDING_MODE_PKCS1 = 1, ///< RSA PKCS1 Padding Mode
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RSA_PADDING_MODE_NO , ///< RSA NO Padding Mode
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RSA_PADDING_MODE_SSLV23 , ///< RSA SSLV23 Padding Mode
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RSA_PADDING_MODE_PKCS1_OAEP , ///< RSA PKCS1 OAEP Padding Mode
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RSA_PADDING_MODE_X931 , ///< RSA X931 Padding Mode
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RSA_PADDING_MODE_PSS ///< RSA PSS Padding Mode
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} rsa_padding_type_e;
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typedef enum {
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RSA_HASH_TYPE_MD5 = 0,
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RSA_HASH_TYPE_SHA1 ,
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RSA_HASH_TYPE_SHA224 ,
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RSA_HASH_TYPE_SHA256 ,
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RSA_HASH_TYPE_SHA384 ,
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RSA_HASH_TYPE_SHA512
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} rsa_hash_type_e;
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/*----- RSA Control Codes: Mode Parameters: Padding mode -----*/
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typedef struct {
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rsa_padding_type_e padding_type;
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rsa_hash_type_e hash_type;
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} rsa_padding_t;
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/**
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\brief RSA Status
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*/
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typedef struct {
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uint32_t busy : 1; ///< Calculate busy flag
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} rsa_status_t;
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/****** RSA Event *****/
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typedef enum {
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RSA_EVENT_ENCRYPT_COMPLETE = 0, ///< Encrypt completed
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RSA_EVENT_DECRYPT_COMPLETE , ///< Decrypt completed
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RSA_EVENT_SIGN_COMPLETE , ///< Sign completed
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RSA_EVENT_VERIFY_COMPLETE , ///< Verify completed
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} rsa_event_e;
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typedef void (*rsa_event_cb_t)(rsa_event_e event); ///< Pointer to \ref rsa_event_cb_t : RSA Event call back.
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/**
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\brief RSA Device Driver Capabilities.
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*/
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typedef struct {
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uint32_t bits_192 : 1; ///< supports 192bits modular length
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uint32_t bits_256 : 1; ///< supports 256bits modular length
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uint32_t bits_512 : 1; ///< supports 512bits modular length
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uint32_t bits_1024 : 1; ///< supports 1024bits modular length
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uint32_t bits_2048 : 1; ///< supports 2048bits modular length
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} rsa_capabilities_t;
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// Function documentation
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/**
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\brief get rsa handle count.
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\return rsa handle count
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*/
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int32_t csi_rsa_get_instance_count(void);
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/**
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\brief Initialize RSA Interface. 1. Initializes the resources needed for the RSA interface 2.registers event callback function
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\param[in] idx must not exceed return value of csi_rsa_get_instance_count()
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\param[in] cb_event Pointer to \ref rsa_event_cb_t
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\return pointer to rsa handle
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*/
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rsa_handle_t csi_rsa_initialize(int32_t idx, rsa_event_cb_t cb_event);
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/**
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\brief De-initialize RSA Interface. stops operation and releases the software resources used by the interface
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\param[in] handle rsa handle to operate.
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\return error code
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*/
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int32_t csi_rsa_uninitialize(rsa_handle_t handle);
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/**
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\brief Get driver capabilities.
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\param[in] handle rsa handle to operate.
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\return \ref rsa_capabilities_t
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*/
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rsa_capabilities_t csi_rsa_get_capabilities(rsa_handle_t handle);
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/**
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\brief config rsa mode.
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\param[in] handle rsa handle to operate.
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\param[in] data_bits \ref rsa_data_bits_e
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\param[in] endian \ref rsa_endian_mode_e
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\return error code
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*/
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int32_t csi_rsa_config(rsa_handle_t handle,
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rsa_data_bits_e data_bits,
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rsa_endian_mode_e endian
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);
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/**
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\brief encrypt
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\param[in] handle rsa handle to operate.
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\param[in] n Pointer to the public modulus
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\param[in] e Pointer to the public exponent
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\param[in] src Pointer to the source data.
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\param[in] src_size the source data len
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\param[out] out Pointer to the result buffer
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\param[out] out_size the result size
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\param[in] padding \ref rsa_padding_t
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\return error code
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*/
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int32_t csi_rsa_encrypt(rsa_handle_t handle, void *n, void *e, void *src, int32_t src_size, void *out, uint32_t *out_size, rsa_padding_t padding);
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/**
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\brief decrypt
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\param[in] handle rsa handle to operate.
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\param[in] n Pointer to the public modulus
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\param[in] d Pointer to the privte exponent
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\param[in] src Pointer to the source data.
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\param[in] src_size the source data len
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\param[out] out Pointer to the result buffer
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\param[out] out_size the result size
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\param[in] padding \ref rsa_padding_t
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\return error code
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*/
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int32_t csi_rsa_decrypt(rsa_handle_t handle, void *n, void *d, void *src, uint32_t src_size, void *out, uint32_t *out_size, rsa_padding_t padding);
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/**
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\brief rsa sign
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\param[in] handle rsa handle to operate.
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\param[in] n Pointer to the public modulus
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\param[in] d Pointer to the privte exponent
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\param[in] src Pointer to the source data.
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\param[in] src_size the source data len
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\param[out] signature Pointer to the signature
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\param[out] sig_size the signature size
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\param[in] padding \ref rsa_padding_t
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\return error code
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*/
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int32_t csi_rsa_sign(rsa_handle_t handle, void *n, void *d, void *src, uint32_t src_size, void *signature, void *sig_size, rsa_padding_t padding);
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/**
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\brief rsa verify
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\param[in] handle rsa handle to operate.
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\param[in] n Pointer to the public modulus
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\param[in] e Pointer to the public exponent
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\param[in] src Pointer to the source data.
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\param[in] src_size the source data len
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\param[in] signature Pointer to the signature
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\param[in] sig_size the signature size
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\param[out] result Pointer to the result
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\param[in] padding \ref rsa_padding_t
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\return error code
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*/
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int32_t csi_rsa_verify(rsa_handle_t handle, void *n, void *e, void *src, uint32_t src_size, void *signature, uint32_t sig_size, void *result, rsa_padding_t padding);
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/**
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\brief Get RSA status.
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\param[in] handle rsa handle to operate.
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\return RSA status \ref rsa_status_t
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*/
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rsa_status_t csi_rsa_get_status(rsa_handle_t handle);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _CSI_RSA_H_ */
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