/*This program gives the 64-bit optimized bitslice implementation of JH using ANSI C
--------------------------------
Performance
Microprocessor: Intel CORE 2 processor (Core 2 Duo Mobile T6600 2.2GHz)
Operating System: 64-bit Ubuntu 10.04 (Linux kernel 2.6.32-22-generic)
Speed for long message:
1) 45.8 cycles/byte compiler: Intel C++ Compiler 11.1 compilation option: icc -O2
2) 56.8 cycles/byte compiler: gcc 4.4.3 compilation option: gcc -O3
--------------------------------
Last Modified: January 16, 2011
*/
#include "jh.h"
#include <stdint.h>
#include <string.h>
/*typedef unsigned long long uint64;*/
typedef uint64_t uint64;
/*define data alignment for different C compilers*/
#if defined(__GNUC__)
#define DATA_ALIGN16(x) x __attribute__ ((aligned(16)))
#else
#define DATA_ALIGN16(x) __declspec(align(16)) x
#endif
typedef struct {
int hashbitlen; /*the message digest size*/
unsigned long long databitlen; /*the message size in bits*/
unsigned long long datasize_in_buffer; /*the size of the message remained in buffer; assumed to be multiple of 8bits except for the last partial block at the end of the message*/
DATA_ALIGN16(uint64 x[8][2]); /*the 1024-bit state, ( x[i][0] || x[i][1] ) is the ith row of the state in the pseudocode*/
DATA_ALIGN16(unsigned char buffer[64]); /*the 512-bit message block to be hashed;*/
} hashState;
/*The initial hash value H(0)*/
const unsigned char JH224_H0[128]={0x2d,0xfe,0xdd,0x62,0xf9,0x9a,0x98,0xac,0xae,0x7c,0xac,0xd6,0x19,0xd6,0x34,0xe7,0xa4,0x83,0x10,0x5,0xbc,0x30,0x12,0x16,0xb8,0x60,0x38,0xc6,0xc9,0x66,0x14,0x94,0x66,0xd9,0x89,0x9f,0x25,0x80,0x70,0x6f,0xce,0x9e,0xa3,0x1b,0x1d,0x9b,0x1a,0xdc,0x11,0xe8,0x32,0x5f,0x7b,0x36,0x6e,0x10,0xf9,0x94,0x85,0x7f,0x2,0xfa,0x6,0xc1,0x1b,0x4f,0x1b,0x5c,0xd8,0xc8,0x40,0xb3,0x97,0xf6,0xa1,0x7f,0x6e,0x73,0x80,0x99,0xdc,0xdf,0x93,0xa5,0xad,0xea,0xa3,0xd3,0xa4,0x31,0xe8,0xde,0xc9,0x53,0x9a,0x68,0x22,0xb4,0xa9,0x8a,0xec,0x86,0xa1,0xe4,0xd5,0x74,0xac,0x95,0x9c,0xe5,0x6c,0xf0,0x15,0x96,0xd,0xea,0xb5,0xab,0x2b,0xbf,0x96,0x11,0xdc,0xf0,0xdd,0x64,0xea,0x6e};
const unsigned char JH256_H0[128]={0xeb,0x98,0xa3,0x41,0x2c,0x20,0xd3,0xeb,0x92,0xcd,0xbe,0x7b,0x9c,0xb2,0x45,0xc1,0x1c,0x93,0x51,0x91,0x60,0xd4,0xc7,0xfa,0x26,0x0,0x82,0xd6,0x7e,0x50,0x8a,0x3,0xa4,0x23,0x9e,0x26,0x77,0x26,0xb9,0x45,0xe0,0xfb,0x1a,0x48,0xd4,0x1a,0x94,0x77,0xcd,0xb5,0xab,0x26,0x2,0x6b,0x17,0x7a,0x56,0xf0,0x24,0x42,0xf,0xff,0x2f,0xa8,0x71,0xa3,0x96,0x89,0x7f,0x2e,0x4d,0x75,0x1d,0x14,0x49,0x8,0xf7,0x7d,0xe2,0x62,0x27,0x76,0x95,0xf7,0x76,0x24,0x8f,0x94,0x87,0xd5,0xb6,0x57,0x47,0x80,0x29,0x6c,0x5c,0x5e,0x27,0x2d,0xac,0x8e,0xd,0x6c,0x51,0x84,0x50,0xc6,0x57,0x5,0x7a,0xf,0x7b,0xe4,0xd3,0x67,0x70,0x24,0x12,0xea,0x89,0xe3,0xab,0x13,0xd3,0x1c,0xd7,0x69};
const unsigned char JH384_H0[128]={0x48,0x1e,0x3b,0xc6,0xd8,0x13,0x39,0x8a,0x6d,0x3b,0x5e,0x89,0x4a,0xde,0x87,0x9b,0x63,0xfa,0xea,0x68,0xd4,0x80,0xad,0x2e,0x33,0x2c,0xcb,0x21,0x48,0xf,0x82,0x67,0x98,0xae,0xc8,0x4d,0x90,0x82,0xb9,0x28,0xd4,0x55,0xea,0x30,0x41,0x11,0x42,0x49,0x36,0xf5,0x55,0xb2,0x92,0x48,0x47,0xec,0xc7,0x25,0xa,0x93,0xba,0xf4,0x3c,0xe1,0x56,0x9b,0x7f,0x8a,0x27,0xdb,0x45,0x4c,0x9e,0xfc,0xbd,0x49,0x63,0x97,0xaf,0xe,0x58,0x9f,0xc2,0x7d,0x26,0xaa,0x80,0xcd,0x80,0xc0,0x8b,0x8c,0x9d,0xeb,0x2e,0xda,0x8a,0x79,0x81,0xe8,0xf8,0xd5,0x37,0x3a,0xf4,0x39,0x67,0xad,0xdd,0xd1,0x7a,0x71,0xa9,0xb4,0xd3,0xbd,0xa4,0x75,0xd3,0x94,0x97,0x6c,0x3f,0xba,0x98,0x42,0x73,0x7f};
const unsigned char JH512_H0[128]={0x6f,0xd1,0x4b,0x96,0x3e,0x0,0xaa,0x17,0x63,0x6a,0x2e,0x5,0x7a,0x15,0xd5,0x43,0x8a,0x22,0x5e,0x8d,0xc,0x97,0xef,0xb,0xe9,0x34,0x12,0x59,0xf2,0xb3,0xc3,0x61,0x89,0x1d,0xa0,0xc1,0x53,0x6f,0x80,0x1e,0x2a,0xa9,0x5,0x6b,0xea,0x2b,0x6d,0x80,0x58,0x8e,0xcc,0xdb,0x20,0x75,0xba,0xa6,0xa9,0xf,0x3a,0x76,0xba,0xf8,0x3b,0xf7,0x1,0x69,0xe6,0x5,0x41,0xe3,0x4a,0x69,0x46,0xb5,0x8a,0x8e,0x2e,0x6f,0xe6,0x5a,0x10,0x47,0xa7,0xd0,0xc1,0x84,0x3c,0x24,0x3b,0x6e,0x71,0xb1,0x2d,0x5a,0xc1,0x99,0xcf,0x57,0xf6,0xec,0x9d,0xb1,0xf8,0x56,0xa7,0x6,0x88,0x7c,0x57,0x16,0xb1,0x56,0xe3,0xc2,0xfc,0xdf,0xe6,0x85,0x17,0xfb,0x54,0x5a,0x46,0x78,0xcc,0x8c,0xdd,0x4b};
/*42 round constants, each round constant is 32-byte (256-bit)*/
const unsigned char E8_bitslice_roundconstant[42][32]={
{0x72,0xd5,0xde,0xa2,0xdf,0x15,0xf8,0x67,0x7b,0x84,0x15,0xa,0xb7,0x23,0x15,0x57,0x81,0xab,0xd6,0x90,0x4d,0x5a,0x87,0xf6,0x4e,0x9f,0x4f,0xc5,0xc3,0xd1,0x2b,0x40},
{0xea,0x98,0x3a,0xe0,0x5c,0x45,0xfa,0x9c,0x3,0xc5,0xd2,0x99,0x66,0xb2,0x99,0x9a,0x66,0x2,0x96,0xb4,0xf2,0xbb,0x53,0x8a,0xb5,0x56,0x14,0x1a,0x88,0xdb,0xa2,0x31},
{0x3,0xa3,0x5a,0x5c,0x9a,0x19,0xe,0xdb,0x40,0x3f,0xb2,0xa,0x87,0xc1,0x44,0x10,0x1c,0x5,0x19,0x80,0x84,0x9e,0x95,0x1d,0x6f,0x33,0xeb,0xad,0x5e,0xe7,0xcd,0xdc},
{0x10,0xba,0x13,0x92,0x2,0xbf,0x6b,0x41,0xdc,0x78,0x65,0x15,0xf7,0xbb,0x27,0xd0,0xa,0x2c,0x81,0x39,0x37,0xaa,0x78,0x50,0x3f,0x1a,0xbf,0xd2,0x41,0x0,0x91,0xd3},
{0x42,0x2d,0x5a,0xd,0xf6,0xcc,0x7e,0x90,0xdd,0x62,0x9f,0x9c,0x92,0xc0,0x97,0xce,0x18,0x5c,0xa7,0xb,0xc7,0x2b,0x44,0xac,0xd1,0xdf,0x65,0xd6,0x63,0xc6,0xfc,0x23},
{0x97,0x6e,0x6c,0x3,0x9e,0xe0,0xb8,0x1a,0x21,0x5,0x45,0x7e,0x44,0x6c,0xec,0xa8,0xee,0xf1,0x3,0xbb,0x5d,0x8e,0x61,0xfa,0xfd,0x96,0x97,0xb2,0x94,0x83,0x81,0x97},
{0x4a,0x8e,0x85,0x37,0xdb,0x3,0x30,0x2f,0x2a,0x67,0x8d,0x2d,0xfb,0x9f,0x6a,0x95,0x8a,0xfe,0x73,0x81,0xf8,0xb8,0x69,0x6c,0x8a,0xc7,0x72,0x46,0xc0,0x7f,0x42,0x14},
{0xc5,0xf4,0x15,0x8f,0xbd,0xc7,0x5e,0xc4,0x75,0x44,0x6f,0xa7,0x8f,0x11,0xbb,0x80,0x52,0xde,0x75,0xb7,0xae,0xe4,0x88,0xbc,0x82,0xb8,0x0,0x1e,0x98,0xa6,0xa3,0xf4},
{0x8e,0xf4,0x8f,0x33,0xa9,0xa3,0x63,0x15,0xaa,0x5f,0x56,0x24,0xd5,0xb7,0xf9,0x89,0xb6,0xf1,0xed,0x20,0x7c,0x5a,0xe0,0xfd,0x36,0xca,0xe9,0x5a,0x6,0x42,0x2c,0x36},
{0xce,0x29,0x35,0x43,0x4e,0xfe,0x98,0x3d,0x53,0x3a,0xf9,0x74,0x73,0x9a,0x4b,0xa7,0xd0,0xf5,0x1f,0x59,0x6f,0x4e,0x81,0x86,0xe,0x9d,0xad,0x81,0xaf,0xd8,0x5a,0x9f},
{0xa7,0x5,0x6,0x67,0xee,0x34,0x62,0x6a,0x8b,0xb,0x28,0xbe,0x6e,0xb9,0x17,0x27,0x47,0x74,0x7,0x26,0xc6,0x80,0x10,0x3f,0xe0,0xa0,0x7e,0x6f,0xc6,0x7e,0x48,0x7b},
{0xd,0x55,0xa,0xa5,0x4a,0xf8,0xa4,0xc0,0x91,0xe3,0xe7,0x9f,0x97,0x8e,0xf1,0x9e,0x86,0x76,0x72,0x81,0x50,0x60,0x8d,0xd4,0x7e,0x9e,0x5a,0x41,0xf3,0xe5,0xb0,0x62},
{0xfc,0x9f,0x1f,0xec,0x40,0x54,0x20,0x7a,0xe3,0xe4,0x1a,0x0,0xce,0xf4,0xc9,0x84,0x4f,0xd7,0x94,0xf5,0x9d,0xfa,0x95,0xd8,0x55,0x2e,0x7e,0x11,0x24,0xc3,0x54,0xa5},
{0x5b,0xdf,0x72,0x28,0xbd,0xfe,0x6e,0x28,0x78,0xf5,0x7f,0xe2,0xf,0xa5,0xc4,0xb2,0x5,0x89,0x7c,0xef,0xee,0x49,0xd3,0x2e,0x44,0x7e,0x93,0x85,0xeb,0x28,0x59,0x7f},
{0x70,0x5f,0x69,0x37,0xb3,0x24,0x31,0x4a,0x5e,0x86,0x28,0xf1,0x1d,0xd6,0xe4,0x65,0xc7,0x1b,0x77,0x4,0x51,0xb9,0x20,0xe7,0x74,0xfe,0x43,0xe8,0x23,0xd4,0x87,0x8a},
{0x7d,0x29,0xe8,0xa3,0x92,0x76,0x94,0xf2,0xdd,0xcb,0x7a,0x9,0x9b,0x30,0xd9,0xc1,0x1d,0x1b,0x30,0xfb,0x5b,0xdc,0x1b,0xe0,0xda,0x24,0x49,0x4f,0xf2,0x9c,0x82,0xbf},
{0xa4,0xe7,0xba,0x31,0xb4,0x70,0xbf,0xff,0xd,0x32,0x44,0x5,0xde,0xf8,0xbc,0x48,0x3b,0xae,0xfc,0x32,0x53,0xbb,0xd3,0x39,0x45,0x9f,0xc3,0xc1,0xe0,0x29,0x8b,0xa0},
{0xe5,0xc9,0x5,0xfd,0xf7,0xae,0x9,0xf,0x94,0x70,0x34,0x12,0x42,0x90,0xf1,0x34,0xa2,0x71,0xb7,0x1,0xe3,0x44,0xed,0x95,0xe9,0x3b,0x8e,0x36,0x4f,0x2f,0x98,0x4a},
{0x88,0x40,0x1d,0x63,0xa0,0x6c,0xf6,0x15,0x47,0xc1,0x44,0x4b,0x87,0x52,0xaf,0xff,0x7e,0xbb,0x4a,0xf1,0xe2,0xa,0xc6,0x30,0x46,0x70,0xb6,0xc5,0xcc,0x6e,0x8c,0xe6},
{0xa4,0xd5,0xa4,0x56,0xbd,0x4f,0xca,0x0,0xda,0x9d,0x84,0x4b,0xc8,0x3e,0x18,0xae,0x73,0x57,0xce,0x45,0x30,0x64,0xd1,0xad,0xe8,0xa6,0xce,0x68,0x14,0x5c,0x25,0x67},
{0xa3,0xda,0x8c,0xf2,0xcb,0xe,0xe1,0x16,0x33,0xe9,0x6,0x58,0x9a,0x94,0x99,0x9a,0x1f,0x60,0xb2,0x20,0xc2,0x6f,0x84,0x7b,0xd1,0xce,0xac,0x7f,0xa0,0xd1,0x85,0x18},
{0x32,0x59,0x5b,0xa1,0x8d,0xdd,0x19,0xd3,0x50,0x9a,0x1c,0xc0,0xaa,0xa5,0xb4,0x46,0x9f,0x3d,0x63,0x67,0xe4,0x4,0x6b,0xba,0xf6,0xca,0x19,0xab,0xb,0x56,0xee,0x7e},
{0x1f,0xb1,0x79,0xea,0xa9,0x28,0x21,0x74,0xe9,0xbd,0xf7,0x35,0x3b,0x36,0x51,0xee,0x1d,0x57,0xac,0x5a,0x75,0x50,0xd3,0x76,0x3a,0x46,0xc2,0xfe,0xa3,0x7d,0x70,0x1},
{0xf7,0x35,0xc1,0xaf,0x98,0xa4,0xd8,0x42,0x78,0xed,0xec,0x20,0x9e,0x6b,0x67,0x79,0x41,0x83,0x63,0x15,0xea,0x3a,0xdb,0xa8,0xfa,0xc3,0x3b,0x4d,0x32,0x83,0x2c,0x83},
{0xa7,0x40,0x3b,0x1f,0x1c,0x27,0x47,0xf3,0x59,0x40,0xf0,0x34,0xb7,0x2d,0x76,0x9a,0xe7,0x3e,0x4e,0x6c,0xd2,0x21,0x4f,0xfd,0xb8,0xfd,0x8d,0x39,0xdc,0x57,0x59,0xef},
{0x8d,0x9b,0xc,0x49,0x2b,0x49,0xeb,0xda,0x5b,0xa2,0xd7,0x49,0x68,0xf3,0x70,0xd,0x7d,0x3b,0xae,0xd0,0x7a,0x8d,0x55,0x84,0xf5,0xa5,0xe9,0xf0,0xe4,0xf8,0x8e,0x65},
{0xa0,0xb8,0xa2,0xf4,0x36,0x10,0x3b,0x53,0xc,0xa8,0x7,0x9e,0x75,0x3e,0xec,0x5a,0x91,0x68,0x94,0x92,0x56,0xe8,0x88,0x4f,0x5b,0xb0,0x5c,0x55,0xf8,0xba,0xbc,0x4c},
{0xe3,0xbb,0x3b,0x99,0xf3,0x87,0x94,0x7b,0x75,0xda,0xf4,0xd6,0x72,0x6b,0x1c,0x5d,0x64,0xae,0xac,0x28,0xdc,0x34,0xb3,0x6d,0x6c,0x34,0xa5,0x50,0xb8,0x28,0xdb,0x71},
{0xf8,0x61,0xe2,0xf2,0x10,0x8d,0x51,0x2a,0xe3,0xdb,0x64,0x33,0x59,0xdd,0x75,0xfc,0x1c,0xac,0xbc,0xf1,0x43,0xce,0x3f,0xa2,0x67,0xbb,0xd1,0x3c,0x2,0xe8,0x43,0xb0},
{0x33,0xa,0x5b,0xca,0x88,0x29,0xa1,0x75,0x7f,0x34,0x19,0x4d,0xb4,0x16,0x53,0x5c,0x92,0x3b,0x94,0xc3,0xe,0x79,0x4d,0x1e,0x79,0x74,0x75,0xd7,0xb6,0xee,0xaf,0x3f},
{0xea,0xa8,0xd4,0xf7,0xbe,0x1a,0x39,0x21,0x5c,0xf4,0x7e,0x9,0x4c,0x23,0x27,0x51,0x26,0xa3,0x24,0x53,0xba,0x32,0x3c,0xd2,0x44,0xa3,0x17,0x4a,0x6d,0xa6,0xd5,0xad},
{0xb5,0x1d,0x3e,0xa6,0xaf,0xf2,0xc9,0x8,0x83,0x59,0x3d,0x98,0x91,0x6b,0x3c,0x56,0x4c,0xf8,0x7c,0xa1,0x72,0x86,0x60,0x4d,0x46,0xe2,0x3e,0xcc,0x8,0x6e,0xc7,0xf6},
{0x2f,0x98,0x33,0xb3,0xb1,0xbc,0x76,0x5e,0x2b,0xd6,0x66,0xa5,0xef,0xc4,0xe6,0x2a,0x6,0xf4,0xb6,0xe8,0xbe,0xc1,0xd4,0x36,0x74,0xee,0x82,0x15,0xbc,0xef,0x21,0x63},
{0xfd,0xc1,0x4e,0xd,0xf4,0x53,0xc9,0x69,0xa7,0x7d,0x5a,0xc4,0x6,0x58,0x58,0x26,0x7e,0xc1,0x14,0x16,0x6,0xe0,0xfa,0x16,0x7e,0x90,0xaf,0x3d,0x28,0x63,0x9d,0x3f},
{0xd2,0xc9,0xf2,0xe3,0x0,0x9b,0xd2,0xc,0x5f,0xaa,0xce,0x30,0xb7,0xd4,0xc,0x30,0x74,0x2a,0x51,0x16,0xf2,0xe0,0x32,0x98,0xd,0xeb,0x30,0xd8,0xe3,0xce,0xf8,0x9a},
{0x4b,0xc5,0x9e,0x7b,0xb5,0xf1,0x79,0x92,0xff,0x51,0xe6,0x6e,0x4,0x86,0x68,0xd3,0x9b,0x23,0x4d,0x57,0xe6,0x96,0x67,0x31,0xcc,0xe6,0xa6,0xf3,0x17,0xa,0x75,0x5},
{0xb1,0x76,0x81,0xd9,0x13,0x32,0x6c,0xce,0x3c,0x17,0x52,0x84,0xf8,0x5,0xa2,0x62,0xf4,0x2b,0xcb,0xb3,0x78,0x47,0x15,0x47,0xff,0x46,0x54,0x82,0x23,0x93,0x6a,0x48},
{0x38,0xdf,0x58,0x7,0x4e,0x5e,0x65,0x65,0xf2,0xfc,0x7c,0x89,0xfc,0x86,0x50,0x8e,0x31,0x70,0x2e,0x44,0xd0,0xb,0xca,0x86,0xf0,0x40,0x9,0xa2,0x30,0x78,0x47,0x4e},
{0x65,0xa0,0xee,0x39,0xd1,0xf7,0x38,0x83,0xf7,0x5e,0xe9,0x37,0xe4,0x2c,0x3a,0xbd,0x21,0x97,0xb2,0x26,0x1,0x13,0xf8,0x6f,0xa3,0x44,0xed,0xd1,0xef,0x9f,0xde,0xe7},
{0x8b,0xa0,0xdf,0x15,0x76,0x25,0x92,0xd9,0x3c,0x85,0xf7,0xf6,0x12,0xdc,0x42,0xbe,0xd8,0xa7,0xec,0x7c,0xab,0x27,0xb0,0x7e,0x53,0x8d,0x7d,0xda,0xaa,0x3e,0xa8,0xde},
{0xaa,0x25,0xce,0x93,0xbd,0x2,0x69,0xd8,0x5a,0xf6,0x43,0xfd,0x1a,0x73,0x8,0xf9,0xc0,0x5f,0xef,0xda,0x17,0x4a,0x19,0xa5,0x97,0x4d,0x66,0x33,0x4c,0xfd,0x21,0x6a},
{0x35,0xb4,0x98,0x31,0xdb,0x41,0x15,0x70,0xea,0x1e,0xf,0xbb,0xed,0xcd,0x54,0x9b,0x9a,0xd0,0x63,0xa1,0x51,0x97,0x40,0x72,0xf6,0x75,0x9d,0xbf,0x91,0x47,0x6f,0xe2}};
static void E8(hashState *state); /*The bijective function E8, in bitslice form*/
static void F8(hashState *state); /*The compression function F8 */
/*The API functions*/
static HashReturn Init(hashState *state, int hashbitlen);
static HashReturn Update(hashState *state, const BitSequence *data, DataLength databitlen);
static HashReturn Final(hashState *state, BitSequence *hashval);
HashReturn jh_hash(int hashbitlen, const BitSequence *data,DataLength databitlen, BitSequence *hashval);
/*swapping bit 2i with bit 2i+1 of 64-bit x*/
#define SWAP1(x) (x) = ((((x) & 0x5555555555555555ULL) << 1) | (((x) & 0xaaaaaaaaaaaaaaaaULL) >> 1));
/*swapping bits 4i||4i+1 with bits 4i+2||4i+3 of 64-bit x*/
#define SWAP2(x) (x) = ((((x) & 0x3333333333333333ULL) << 2) | (((x) & 0xccccccccccccccccULL) >> 2));
/*swapping bits 8i||8i+1||8i+2||8i+3 with bits 8i+4||8i+5||8i+6||8i+7 of 64-bit x*/
#define SWAP4(x) (x) = ((((x) & 0x0f0f0f0f0f0f0f0fULL) << 4) | (((x) & 0xf0f0f0f0f0f0f0f0ULL) >> 4));
/*swapping bits 16i||16i+1||......||16i+7 with bits 16i+8||16i+9||......||16i+15 of 64-bit x*/
#define SWAP8(x) (x) = ((((x) & 0x00ff00ff00ff00ffULL) << 8) | (((x) & 0xff00ff00ff00ff00ULL) >> 8));
/*swapping bits 32i||32i+1||......||32i+15 with bits 32i+16||32i+17||......||32i+31 of 64-bit x*/
#define SWAP16(x) (x) = ((((x) & 0x0000ffff0000ffffULL) << 16) | (((x) & 0xffff0000ffff0000ULL) >> 16));
/*swapping bits 64i||64i+1||......||64i+31 with bits 64i+32||64i+33||......||64i+63 of 64-bit x*/
#define SWAP32(x) (x) = (((x) << 32) | ((x) >> 32));
/*The MDS transform*/
#define L(m0,m1,m2,m3,m4,m5,m6,m7) \
(m4) ^= (m1); \
(m5) ^= (m2); \
(m6) ^= (m0) ^ (m3); \
(m7) ^= (m0); \
(m0) ^= (m5); \
(m1) ^= (m6); \
(m2) ^= (m4) ^ (m7); \
(m3) ^= (m4);
/*Two Sboxes are computed in parallel, each Sbox implements S0 and S1, selected by a constant bit*/
/*The reason to compute two Sboxes in parallel is to try to fully utilize the parallel processing power*/
#define SS(m0,m1,m2,m3,m4,m5,m6,m7,cc0,cc1) \
m3 = ~(m3); \
m7 = ~(m7); \
m0 ^= ((~(m2)) & (cc0)); \
m4 ^= ((~(m6)) & (cc1)); \
temp0 = (cc0) ^ ((m0) & (m1));\
temp1 = (cc1) ^ ((m4) & (m5));\
m0 ^= ((m2) & (m3)); \
m4 ^= ((m6) & (m7)); \
m3 ^= ((~(m1)) & (m2)); \
m7 ^= ((~(m5)) & (m6)); \
m1 ^= ((m0) & (m2)); \
m5 ^= ((m4) & (m6)); \
m2 ^= ((m0) & (~(m3))); \
m6 ^= ((m4) & (~(m7))); \
m0 ^= ((m1) | (m3)); \
m4 ^= ((m5) | (m7)); \
m3 ^= ((m1) & (m2)); \
m7 ^= ((m5) & (m6)); \
m1 ^= (temp0 & (m0)); \
m5 ^= (temp1 & (m4)); \
m2 ^= temp0; \
m6 ^= temp1;
/*The bijective function E8, in bitslice form*/
static void E8(hashState *state)
{
uint64 i,roundnumber,temp0,temp1;
for (roundnumber = 0; roundnumber < 42; roundnumber = roundnumber+7) {
/*round 7*roundnumber+0: Sbox, MDS and Swapping layers*/
for (i = 0; i < 2; i++) {
SS(state->x[0][i],state->x[2][i],state->x[4][i],state->x[6][i],state->x[1][i],state->x[3][i],state->x[5][i],state->x[7][i],((uint64*)E8_bitslice_roundconstant[roundnumber+0])[i],((uint64*)E8_bitslice_roundconstant[roundnumber+0])[i+2] );
L(state->x[0][i],state->x[2][i],state->x[4][i],state->x[6][i],state->x[1][i],state->x[3][i],state->x[5][i],state->x[7][i]);
SWAP1(state->x[1][i]); SWAP1(state->x[3][i]); SWAP1(state->x[5][i]); SWAP1(state->x[7][i]);
}
/*round 7*roundnumber+1: Sbox, MDS and Swapping layers*/
for (i = 0; i < 2; i++) {
SS(state->x[0][i],state->x[2][i],state->x[4][i],state->x[6][i],state->x[1][i],state->x[3][i],state->x[5][i],state->x[7][i],((uint64*)E8_bitslice_roundconstant[roundnumber+1])[i],((uint64*)E8_bitslice_roundconstant[roundnumber+1])[i+2] );
L(state->x[0][i],state->x[2][i],state->x[4][i],state->x[6][i],state->x[1][i],state->x[3][i],state->x[5][i],state->x[7][i]);
SWAP2(state->x[1][i]); SWAP2(state->x[3][i]); SWAP2(state->x[5][i]); SWAP2(state->x[7][i]);
}
/*round 7*roundnumber+2: Sbox, MDS and Swapping layers*/
for (i = 0; i < 2; i++) {
SS(state->x[0][i],state->x[2][i],state->x[4][i],state->x[6][i],state->x[1][i],state->x[3][i],state->x[5][i],state->x[7][i],((uint64*)E8_bitslice_roundconstant[roundnumber+2])[i],((uint64*)E8_bitslice_roundconstant[roundnumber+2])[i+2] );
L(state->x[0][i],state->x[2][i],state->x[4][i],state->x[6][i],state->x[1][i],state->x[3][i],state->x[5][i],state->x[7][i]);
SWAP4(state->x[1][i]); SWAP4(state->x[3][i]); SWAP4(state->x[5][i]); SWAP4(state->x[7][i]);
}
/*round 7*roundnumber+3: Sbox, MDS and Swapping layers*/
for (i = 0; i < 2; i++) {
SS(state->x[0][i],state->x[2][i],state->x[4][i],state->x[6][i],state->x[1][i],state->x[3][i],state->x[5][i],state->x[7][i],((uint64*)E8_bitslice_roundconstant[roundnumber+3])[i],((uint64*)E8_bitslice_roundconstant[roundnumber+3])[i+2] );
L(state->x[0][i],state->x[2][i],state->x[4][i],state->x[6][i],state->x[1][i],state->x[3][i],state->x[5][i],state->x[7][i]);
SWAP8(state->x[1][i]); SWAP8(state->x[3][i]); SWAP8(state->x[5][i]); SWAP8(state->x[7][i]);
}
/*round 7*roundnumber+4: Sbox, MDS and Swapping layers*/
for (i = 0; i < 2; i++) {
SS(state->x[0][i],state->x[2][i],state->x[4][i],state->x[6][i],state->x[1][i],state->x[3][i],state->x[5][i],state->x[7][i],((uint64*)E8_bitslice_roundconstant[roundnumber+4])[i],((uint64*)E8_bitslice_roundconstant[roundnumber+4])[i+2] );
L(state->x[0][i],state->x[2][i],state->x[4][i],state->x[6][i],state->x[1][i],state->x[3][i],state->x[5][i],state->x[7][i]);
SWAP16(state->x[1][i]); SWAP16(state->x[3][i]); SWAP16(state->x[5][i]); SWAP16(state->x[7][i]);
}
/*round 7*roundnumber+5: Sbox, MDS and Swapping layers*/
for (i = 0; i < 2; i++) {
SS(state->x[0][i],state->x[2][i],state->x[4][i],state->x[6][i],state->x[1][i],state->x[3][i],state->x[5][i],state->x[7][i],((uint64*)E8_bitslice_roundconstant[roundnumber+5])[i],((uint64*)E8_bitslice_roundconstant[roundnumber+5])[i+2] );
L(state->x[0][i],state->x[2][i],state->x[4][i],state->x[6][i],state->x[1][i],state->x[3][i],state->x[5][i],state->x[7][i]);
SWAP32(state->x[1][i]); SWAP32(state->x[3][i]); SWAP32(state->x[5][i]); SWAP32(state->x[7][i]);
}
/*round 7*roundnumber+6: Sbox and MDS layers*/
for (i = 0; i < 2; i++) {
SS(state->x[0][i],state->x[2][i],state->x[4][i],state->x[6][i],state->x[1][i],state->x[3][i],state->x[5][i],state->x[7][i],((uint64*)E8_bitslice_roundconstant[roundnumber+6])[i],((uint64*)E8_bitslice_roundconstant[roundnumber+6])[i+2] );
L(state->x[0][i],state->x[2][i],state->x[4][i],state->x[6][i],state->x[1][i],state->x[3][i],state->x[5][i],state->x[7][i]);
}
/*round 7*roundnumber+6: swapping layer*/
for (i = 1; i < 8; i = i+2) {
temp0 = state->x[i][0]; state->x[i][0] = state->x[i][1]; state->x[i][1] = temp0;
}
}
}
/*The compression function F8 */
static void F8(hashState *state)
{
uint64_t* x = (uint64_t*)state->x;
/*xor the 512-bit message with the fist half of the 1024-bit hash state*/
for (int i = 0; i < 8; ++i) {
uint64 b;
memcpy(&b, &state->buffer[i << 3], sizeof(b));
x[i] ^= b;
}
/*the bijective function E8 */
E8(state);
/*xor the 512-bit message with the second half of the 1024-bit hash state*/
for (int i = 0; i < 8; ++i) {
uint64 b;
memcpy(&b, &state->buffer[i << 3], sizeof(b));
x[i + 8] ^= b;
}
}
/*before hashing a message, initialize the hash state as H0 */
static HashReturn Init(hashState *state, int hashbitlen)
{
state->databitlen = 0;
state->datasize_in_buffer = 0;
/*initialize the initial hash value of JH*/
state->hashbitlen = hashbitlen;
/*load the intital hash value into state*/
switch (hashbitlen)
{
case 224: memcpy(state->x,JH224_H0,128); break;
case 256: memcpy(state->x,JH256_H0,128); break;
case 384: memcpy(state->x,JH384_H0,128); break;
default:
case 512: memcpy(state->x,JH512_H0,128); break;
}
return(SUCCESS);
}
/*hash each 512-bit message block, except the last partial block*/
static HashReturn Update(hashState *state, const BitSequence *data, DataLength databitlen)
{
DataLength index; /*the starting address of the data to be compressed*/
state->databitlen += databitlen;
index = 0;
/*if there is remaining data in the buffer, fill it to a full message block first*/
/*we assume that the size of the data in the buffer is the multiple of 8 bits if it is not at the end of a message*/
/*There is data in the buffer, but the incoming data is insufficient for a full block*/
if ( (state->datasize_in_buffer > 0 ) && (( state->datasize_in_buffer + databitlen) < 512) ) {
if ( (databitlen & 7) == 0 ) {
memcpy(state->buffer + (state->datasize_in_buffer >> 3), data, 64-(state->datasize_in_buffer >> 3)) ;
}
else memcpy(state->buffer + (state->datasize_in_buffer >> 3), data, 64-(state->datasize_in_buffer >> 3)+1) ;
state->datasize_in_buffer += databitlen;
databitlen = 0;
}
/*There is data in the buffer, and the incoming data is sufficient for a full block*/
if ( (state->datasize_in_buffer > 0 ) && (( state->datasize_in_buffer + databitlen) >= 512) ) {
memcpy( state->buffer + (state->datasize_in_buffer >> 3), data, 64-(state->datasize_in_buffer >> 3) ) ;
index = 64-(state->datasize_in_buffer >> 3);
databitlen = databitlen - (512 - state->datasize_in_buffer);
F8(state);
state->datasize_in_buffer = 0;
}
/*hash the remaining full message blocks*/
for ( ; databitlen >= 512; index = index+64, databitlen = databitlen - 512) {
memcpy(state->buffer, data+index, 64);
F8(state);
}
/*store the partial block into buffer, assume that -- if part of the last byte is not part of the message, then that part consists of 0 bits*/
if ( databitlen > 0) {
if ((databitlen & 7) == 0)
memcpy(state->buffer, data+index, (databitlen & 0x1ff) >> 3);
else
memcpy(state->buffer, data+index, ((databitlen & 0x1ff) >> 3)+1);
state->datasize_in_buffer = databitlen;
}
return(SUCCESS);
}
/*pad the message, process the padded block(s), truncate the hash value H to obtain the message digest*/
static HashReturn Final(hashState *state, BitSequence *hashval)
{
unsigned int i;
if ( (state->databitlen & 0x1ff) == 0 ) {
/*pad the message when databitlen is multiple of 512 bits, then process the padded block*/
memset(state->buffer, 0, 64);
state->buffer[0] = 0x80;
state->buffer[63] = state->databitlen & 0xff;
state->buffer[62] = (state->databitlen >> 8) & 0xff;
state->buffer[61] = (state->databitlen >> 16) & 0xff;
state->buffer[60] = (state->databitlen >> 24) & 0xff;
state->buffer[59] = (state->databitlen >> 32) & 0xff;
state->buffer[58] = (state->databitlen >> 40) & 0xff;
state->buffer[57] = (state->databitlen >> 48) & 0xff;
state->buffer[56] = (state->databitlen >> 56) & 0xff;
F8(state);
}
else {
/*set the rest of the bytes in the buffer to 0*/
if ( (state->datasize_in_buffer & 7) == 0)
for (i = (state->databitlen & 0x1ff) >> 3; i < 64; i++) state->buffer[i] = 0;
else
for (i = ((state->databitlen & 0x1ff) >> 3)+1; i < 64; i++) state->buffer[i] = 0;
/*pad and process the partial block when databitlen is not multiple of 512 bits, then hash the padded blocks*/
state->buffer[((state->databitlen & 0x1ff) >> 3)] |= 1 << (7- (state->databitlen & 7));
F8(state);
memset(state->buffer, 0, 64);
state->buffer[63] = state->databitlen & 0xff;
state->buffer[62] = (state->databitlen >> 8) & 0xff;
state->buffer[61] = (state->databitlen >> 16) & 0xff;
state->buffer[60] = (state->databitlen >> 24) & 0xff;
state->buffer[59] = (state->databitlen >> 32) & 0xff;
state->buffer[58] = (state->databitlen >> 40) & 0xff;
state->buffer[57] = (state->databitlen >> 48) & 0xff;
state->buffer[56] = (state->databitlen >> 56) & 0xff;
F8(state);
}
/*truncating the final hash value to generate the message digest*/
switch(state->hashbitlen) {
case 224: memcpy(hashval,(unsigned char*)state->x+64+36,28); break;
case 256: memcpy(hashval,(unsigned char*)state->x+64+32,32); break;
case 384: memcpy(hashval,(unsigned char*)state->x+64+16,48); break;
case 512: memcpy(hashval,(unsigned char*)state->x+64,64); break;
}
return(SUCCESS);
}
/* hash a message,
three inputs: message digest size in bits (hashbitlen); message (data); message length in bits (databitlen)
one output: message digest (hashval)
*/
HashReturn jh_hash(int hashbitlen, const BitSequence *data,DataLength databitlen, BitSequence *hashval)
{
hashState state;
if ( hashbitlen == 224 || hashbitlen == 256 || hashbitlen == 384 || hashbitlen == 512 ) {
Init(&state, hashbitlen);
Update(&state, data, databitlen);
Final(&state, hashval);
return SUCCESS;
}
else
return(BAD_HASHLEN);
}
