ocrypto_aes_eax_decrypt()

int ocrypto_aes_eax_decrypt	(	uint8_t *	pt,
		const uint8_t	tag[16],
		const uint8_t *	ct,
		size_t	ct_len,
		const uint8_t *	key,
		size_t	size,
		const uint8_t *	iv,
		size_t	iv_len,
		const uint8_t *	aa,
		size_t	aa_len )

#include <crypto/nrf_oberon/include/ocrypto_aes_eax.h>

AES-EAX decryption.

Parameters

[out]	pt	Plaintext.
	tag	Authentication tag.
	ct	Ciphertext.
	ct_len	Length of pt and ct.
	key	AES key.
	size	Key size (16, 24, or 32 bytes).
	iv	Initial vector.
	iv_len	Initial vector length.
	aa	Additional authentication data.
	aa_len	Additional authentication data length.

Remarks

ct may be same as pt.

Return values

0	If tag is valid.
-1	Otherwise.