ox_aes.h

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Advanced Encryption Standard syscalls. More...

Data Structures
struct	cx_aes_key_s
	AES key container. More...

Macros
#define	CX_AES_BLOCK_SIZE   16
	Block size of the AES in bytes. More...

Typedefs
typedef struct cx_aes_key_s	cx_aes_key_t
	Convenience type. More...

Functions
SYSCALL cx_err_t	cx_aes_set_key_hw (const cx_aes_key_t *key, uint32_t mode)
	Sets an AES key in hardware. More...
SYSCALL void	cx_aes_reset_hw (void)
	Resets the AES context. More...
SYSCALL cx_err_t	cx_aes_block_hw (const unsigned char *inblock, unsigned char *outblock)
	Encrypts or decrypts a block with AES. More...

Detailed Description

Advanced Encryption Standard syscalls.

This file contains AES definitions and functions:

• Set the AES key in memory
• Encrypt a 128-bit block
• Reset the AES context

Macro Definition Documentation

CX_AES_BLOCK_SIZE

#define CX_AES_BLOCK_SIZE   16

Block size of the AES in bytes.

Typedef Documentation

cx_aes_key_t

typedef struct cx_aes_key_s cx_aes_key_t

Convenience type.

See cx_aes_key_s.

Function Documentation

cx_aes_block_hw()

SYSCALL cx_err_t cx_aes_block_hw	(	const unsigned char *	inblock,
		unsigned char *	outblock
)

Encrypts or decrypts a block with AES.

Parameters

[in]	inblock	Pointer to the block.
[out]	outblock	Buffer for the output.

Returns

Error code:

• CX_OK on success
• INVALID_PARAMETER

cx_aes_reset_hw()

SYSCALL void cx_aes_reset_hw

(

void

)

Resets the AES context.

cx_aes_set_key_hw()

SYSCALL cx_err_t cx_aes_set_key_hw	(	const cx_aes_key_t *	key,
		uint32_t	mode
)

Sets an AES key in hardware.

Parameters

[in]	key	AES key.
[in]	mode	Operation for which the key will be used.

Returns

Error code:

• CX_OK on success
• CX_INVALID_PARAMETER

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