lt_aesgcm_decrypt()

int lt_aesgcm_decrypt	(	void *	ctx,
		const uint8_t *	iv,
		uint32_t	iv_len,
		const uint8_t *	aad,
		uint32_t	aad_len,
		uint8_t *	msg,
		uint32_t	msg_len,
		const uint8_t *	tag,
		uint32_t	tag_len
	)

This function decrypts data. It expect initialized context with valid keys.

Parameters

ctx	AESGCM context structure
iv	The initialisation vector
iv_len	Length of initialization vector in bytes
aad	The header buffer
aad_len	Length of header buffer in bytes
msg	Message buffer
msg_len	Length of message in bytes
tag	The tag buffer
tag_len	Length of tag buffer in bytes

Returns

LT_OK if success, otherwise returns other error code.