psa_cryptocell_310_aes_common.h File Reference

Common AES functions used by all PSA Crypto wrappers for the CryptoCell 310 AES APIs. More...

Detailed Description

Common AES functions used by all PSA Crypto wrappers for the CryptoCell 310 AES APIs.

Author

Lena Boeckmann lena..nosp@m.boec.nosp@m.kmann.nosp@m.@haw.nosp@m.-hamb.nosp@m.urg..nosp@m.de

Definition in file psa_cryptocell_310_aes_common.h.

#include "psa/crypto.h"

Include dependency graph for psa_cryptocell_310_aes_common.h:

Go to the source code of this file.

psa_status_t	cryptocell_310_common_aes_setup (SaSiAesUserContext_t *ctx, SaSiAesEncryptMode_t direction, SaSiAesOperationMode_t mode, SaSiAesPaddingType_t padding, const uint8_t *iv, const uint8_t *key_buffer, size_t key_size)
	Common setup function for AES operations.
psa_status_t	cryptocell_310_common_aes_encrypt_decrypt (SaSiAesUserContext_t *ctx, const uint8_t *input, size_t input_length, uint8_t *output, size_t output_buffer_size, size_t *output_length)
	Common function for an AES encryption.

Function Documentation

cryptocell_310_common_aes_encrypt_decrypt()

psa_status_t cryptocell_310_common_aes_encrypt_decrypt	(	SaSiAesUserContext_t *	ctx,
		const uint8_t *	input,
		size_t	input_length,
		uint8_t *	output,
		size_t	output_buffer_size,
		size_t *	output_length
	)

Common function for an AES encryption.

Parameters

ctx	AES context of the type SaSiAesUserContext_t
input	Constant input buffer of plain text to encrypt
input_length	Length of the input buffer
output	Output buffer to write the cipher
output_buffer_size	Size of the output buffer. Must be at least input_length
output_length	Pointer to output length. Will contain actual length of cipher

Returns

psa_status_t

cryptocell_310_common_aes_setup()

psa_status_t cryptocell_310_common_aes_setup	(	SaSiAesUserContext_t *	ctx,
		SaSiAesEncryptMode_t	direction,
		SaSiAesOperationMode_t	mode,
		SaSiAesPaddingType_t	padding,
		const uint8_t *	iv,
		const uint8_t *	key_buffer,
		size_t	key_size
	)

Common setup function for AES operations.

Parameters

ctx	Driver specific AES context of the type SaSiAesUserContext_t
direction	Encrypt or decrypt direction of type SaSiAesEncryptMode_t
mode	Operation mode (e.g. CBC, CCM) of type SaSiAesOperationMode_t
padding	Operation padding type of type SaSiAesPaddingType_t
iv	Constant buffer containing the IV for the operation
key_buffer	Constant buffer containing an AES key
key_size	Size of AES key in use.

Returns

psa_status_t