internal-simp.h File Reference

SimP permutation family. More...

#include "internal-util.h"

Go to the source code of this file.

Macros
#define	SIMP_256_STATE_SIZE   32
	State size of the SimP-256 permutation.
#define	SIMP_192_STATE_SIZE   24
	State size of the SimP-192 permutation.

Functions
void	simp_256_permute (unsigned char state[SIMP_256_STATE_SIZE], unsigned steps)
	Permutes a state with SimP-256. More...
void	simp_192_permute (unsigned char state[SIMP_192_STATE_SIZE], unsigned steps)
	Permutes a state with SimP-192. More...

Detailed Description

SimP permutation family.

SimP-256 and SimP-192 are used by the Oribatida submission to round 2 of the NIST Lightweight Cryptography Competition. The permutations are built around reduced-round variants of the Simon-128-128 and Simon-96-96 block ciphers.

References: https://www.isical.ac.in/~lightweight/oribatida/

Function Documentation

void simp_192_permute	(	unsigned char	state[SIMP_192_STATE_SIZE],
		unsigned	steps
	)

Permutes a state with SimP-192.

Parameters

state	State to be permuted.
steps	Number of steps to perform (usually 2 or 4).

void simp_256_permute	(	unsigned char	state[SIMP_256_STATE_SIZE],
		unsigned	steps
	)

Permutes a state with SimP-256.

Parameters

state	State to be permuted.
steps	Number of steps to perform (usually 2 or 4).