aes-eax.c File Reference

AES-128 EAX. More...

#include "includes.h"
#include "common.h"
#include "aes.h"
#include "aes_wrap.h"

Functions
int	aes_128_eax_encrypt (const u8 *key, const u8 *nonce, size_t nonce_len, const u8 *hdr, size_t hdr_len, u8 *data, size_t data_len, u8 *tag)
	AES-128 EAX mode encryption. More...
int	aes_128_eax_decrypt (const u8 *key, const u8 *nonce, size_t nonce_len, const u8 *hdr, size_t hdr_len, u8 *data, size_t data_len, const u8 *tag)
	AES-128 EAX mode decryption. More...

Detailed Description

AES-128 EAX.

Function Documentation

int aes_128_eax_decrypt	(	const u8 *	key,
		const u8 *	nonce,
		size_t	nonce_len,
		const u8 *	hdr,
		size_t	hdr_len,
		u8 *	data,
		size_t	data_len,
		const u8 *	tag
	)

AES-128 EAX mode decryption.

Parameters

key	Key for decryption (16 bytes)
nonce	Nonce for counter mode
nonce_len	Nonce length in bytes
hdr	Header data to be authenticity protected
hdr_len	Length of the header data bytes
data	Data to encrypt in-place
data_len	Length of data in bytes
tag	16-byte tag value

Returns

0 on success, -1 on failure, -2 if tag does not match

int aes_128_eax_encrypt	(	const u8 *	key,
		const u8 *	nonce,
		size_t	nonce_len,
		const u8 *	hdr,
		size_t	hdr_len,
		u8 *	data,
		size_t	data_len,
		u8 *	tag
	)

AES-128 EAX mode encryption.

Parameters

key	Key for encryption (16 bytes)
nonce	Nonce for counter mode
nonce_len	Nonce length in bytes
hdr	Header data to be authenticity protected
hdr_len	Length of the header data bytes
data	Data to encrypt in-place
data_len	Length of data in bytes
tag	16-byte tag value

Returns

0 on success, -1 on failure