8.5.1.4 Crypto_Sym_Camellia_DecryptDirect

crypto_Sym_Status_E Crypto_Sym_Camellia_EncryptDirect(
    crypto_HandlerType_E handlerType_en, 
    crypto_Sym_OpModes_E opMode_en, 
    uint8_t *ptr_inputData, 
    uint32_t dataLen, 
    uint8_t *ptr_outData, 
    uint8_t *ptr_key, 
    uint32_t keyLen, 
    uint8_t *ptr_initVect, 
    uint32_t sessionID
    );

Description

This API performs Camellia decryption for different operation modes in a single step without initializing.

Parameters


No.	Argument Type	Argument Name	Type	Description
1	crypto_HandlerType_E	handlerType_en	Input	Enum for crypto operation handler i.e., SW, HW.
2	crypto_Sym_OpModes_E	opMode_en	Input	Select operation mode. i.e., ECB, CBC.
3	uint8_t*	ptr_inputData	Input	Input data to decrypt.
4	uint32_t	dataLen	Input	Input length of cipher data in bytes.
5	uint8_t*	ptr_outData	Output	Pointer to store plain text as output.
6	uint8_t*	ptr_key	Input	Key for the Symmetric operation.
7	uint32_t	keyLen	Input	Key length for the Symmetric algorithm in bytes.
8	uint8_t*	ptr_initVect	Input	Initialization vector. Use NULL when ECB mode.
9	uint32_t	sessionID	Input	It defines the session ID, must be more than zero.

Returns


Return Type	Description
crypto_Sym_Status_E	Function returns the status of the API.

Prerequisites

To use the HW handler, the algorithm must be enabled in Crypto v4 in MPLAB® Code Configurator.
To use the SW handler, the algorithm must be enabled in wolfCrypt, and linked to Crypto V4 in MPLAB® Code Configurator.

Example

#define sessionID 1
crypto_Sym_Status_E status;
crypto_HandlerType_E handlerType_en = CRYPTO_HANDLER_SW_WOLFCRYPT;
crypto_Sym_OpModes_E opMode_en = CRYPTO_SYM_OPMODE_ECB;
uint8_t key[16] = {/*data*/};
uint32_t keyLen = sizeof(key);
uint8_t *ptr_initVect = NULL;
uint8_t inputData[64] = {/*data*/};
uint32_t dataLen = sizeof(inputData);
uint8_t outData[64];

status = Crypto_Sym_Camellia_EncryptDirect(
    handlerType_en,
    opMode_en,
    inputData,
    dataLen,
    outData,
    key,
    keyLen,
    ptr_initVect,
    sessionID
    );