internal-gift128-m.h File Reference

Masked version of the GIFT-128 block cipher. More...

#include "internal-masking.h"
#include "internal-gift128-config.h"

Go to the source code of this file.

Data Structures
struct	gift128b_masked_key_schedule_t
	Structure of the key schedule for masked GIFT-128 (bit-sliced). More...

Macros
#define	GIFT128_MASKED_BLOCK_SIZE   16
	Size of a GIFT-128 block in bytes.
#define	GIFT128_MASKED_ROUND_KEYS   80
	Number of round keys for the GIFT-128 key schedule.

Functions
void	gift128b_init_masked (gift128b_masked_key_schedule_t *ks, const unsigned char *key)
	Initializes the key schedule for masked GIFT-128 (bit-sliced). More...
void	gift128b_encrypt_preloaded_masked (const gift128b_masked_key_schedule_t *ks, mask_uint32_t output[4], const mask_uint32_t input[4])
	Encrypts a block with masked GIFT-128 (bit-sliced and pre-loaded). More...
void	gift128b_decrypt_preloaded_masked (const gift128b_masked_key_schedule_t *ks, mask_uint32_t output[4], const mask_uint32_t input[4])
	Decrypts a block with masked GIFT-128 (bit-sliced and pre-loaded). More...

Detailed Description

Masked version of the GIFT-128 block cipher.

Function Documentation

void gift128b_decrypt_preloaded_masked	(	const gift128b_masked_key_schedule_t *	ks,
		mask_uint32_t	output[4],
		const mask_uint32_t	input[4]
	)

Decrypts a block with masked GIFT-128 (bit-sliced and pre-loaded).

Parameters

ks	Points to the masked GIFT-128 key schedule.
output	Output buffer which must be at least 16 bytes in length.
input	Input buffer which must be at least 16 bytes in length.

The input and output buffers can be the same buffer for in-place decryption.

This version assumes that the input has already been pre-loaded from big-endian into host byte order in the supplied word array. The output is delivered in the same way.

void gift128b_encrypt_preloaded_masked	(	const gift128b_masked_key_schedule_t *	ks,
		mask_uint32_t	output[4],
		const mask_uint32_t	input[4]
	)

Encrypts a block with masked GIFT-128 (bit-sliced and pre-loaded).

Parameters

ks	Points to the masked GIFT-128 key schedule.
output	Output buffer which must be at least 16 bytes in length.
input	Input buffer which must be at least 16 bytes in length.

The input and output buffers can be the same buffer for in-place encryption.

This version assumes that the input has already been pre-loaded from big-endian into host byte order in the supplied word array. The output is delivered in the same way.

void gift128b_init_masked	(	gift128b_masked_key_schedule_t *	ks,
		const unsigned char *	key
	)

Initializes the key schedule for masked GIFT-128 (bit-sliced).

Parameters

ks	Points to the key schedule to initialize.
key	Points to the 16 bytes of the key data.