/* * This file is part of John the Ripper password cracker, * Copyright (c) 1996-98 by Solar Designer *//* * Standard DES implementation. */#ifndef _JOHN_DES_STD_H#define _JOHN_DES_STD_H#include "arch.h"#if ARCH_BITS >= 64#define DES_SIZE			8#else#define DES_SIZE			4#endif/* * Expansion table. */extern unsigned char DES_E[48];/* * Key bits schedule. */extern unsigned char DES_K_bits[0x300];/* * Current key schedule. */typedef ARCH_WORD DES_KS[128 / DES_SIZE];extern DES_KS DES_KS_current;/* * Binary ciphertext type. */typedef unsigned ARCH_WORD DES_binary[16 / DES_SIZE];/* * Initial value for DES_std_crypt(). */extern DES_binary DES_IV;/* * Number of iterations for DES_std_crypt(). */extern ARCH_WORD DES_count;/* * Some extra stuff has to be defined here to calculate DES_BINARY_MASK and * define the hash functions. */#if DES_128K#define DES_SIZE_FIX			3#else#if ARCH_BITS >= 64/* * It is not possible to shift by 3 (no free bits), so we have to choose * between 0 and 2. */#if DES_SCALE#define DES_SIZE_FIX			0#else#define DES_SIZE_FIX			2#endif#else#define DES_SIZE_FIX			2#endif#endif#if DES_128K#define DES_DO_SIZE_FIX(x) \	(((((x) << 2) & 0x00FF00FF) | ((x) & 0xFF00FF00)) << 1)#else#define DES_DO_SIZE_FIX(x) \	((x) << DES_SIZE_FIX)#endif/* * Masks used to extract data bits out of binary ciphertexts. */#define DES_MASK_16			DES_DO_SIZE_FIX(0x1E1E1E1E)#if ARCH_BITS >= 64#define DES_BINARY_MASK \	(DES_MASK_16 | ((ARCH_WORD)DES_MASK_16 << 32))#else#define DES_BINARY_MASK			DES_MASK_16#endif/* * Binary ciphertext hash functions. */#define DES_STD_HASH_0(x) \	(((x) >> (DES_SIZE_FIX + 1)) & 0xF)#if DES_128K#define DES_STD_HASH_1(x) \	(DES_STD_HASH_0(x) | \	(((x) >> (DES_SIZE_FIX + 3)) & 0xF0))#else#define DES_STD_HASH_1(x) \	(DES_STD_HASH_0(x) | \	(((x) >> (DES_SIZE_FIX + 5)) & 0xF0))#endif#define DES_STD_HASH_2(x) \	(DES_STD_HASH_1(x) | \	(((x) >> (DES_SIZE_FIX + 9)) & 0xF00))#if ARCH_BITS >= 64#define DES_STD_ALGORITHM_BITS		"48/" ARCH_BITS_STR#elif DES_X2#define DES_STD_ALGORITHM_BITS		"48/64"#else#define DES_STD_ALGORITHM_BITS		"24/32"#endif#if DES_128K#define DES_STD_ALGORITHM_SIZE		"128K"#else#define DES_STD_ALGORITHM_SIZE		"4K"#endif#define DES_STD_ALGORITHM_NAME \	DES_STD_ALGORITHM_BITS " " DES_STD_ALGORITHM_SIZE/* * Initializes the internal structures. */extern void DES_std_init();/* * Sets a salt for DES_std_crypt(). */extern void DES_std_set_salt(ARCH_WORD salt);/* * Sets a key for DES_std_crypt(), in DES_KS. */extern void DES_std_set_key(char *key);/* * Sets an initial value for DES_std_crypt(). */extern void DES_std_set_block(ARCH_WORD R, ARCH_WORD L);/* * Returns the encryption result. */extern void DES_std_get_block(DES_binary binary, unsigned ARCH_WORD out[2]);/* * Main encryption routine. */#if CPU_DETECT && !CPU_REQextern void (*DES_std_crypt)(DES_KS KS, DES_binary out);#elseextern void DES_std_crypt(DES_KS KS, DES_binary out);#endif/* * Returns the salt. */extern ARCH_WORD DES_raw_get_salt(char *ciphertext);/* * Returns the salt for DES_std_set_salt(). */extern ARCH_WORD DES_std_get_salt(char *ciphertext);/* * Returns the iteration count for DES_std_crypt(). */extern ARCH_WORD DES_raw_get_count(char *ciphertext);/* * Converts an ASCII ciphertext to binary. */extern ARCH_WORD *DES_raw_get_binary(char *ciphertext);/* * Converts an ASCII ciphertext to binary to be compared against * DES_std_crypt() result. */extern ARCH_WORD *DES_std_get_binary(char *ciphertext);#endif