1 /* 2 * UFC-crypt: ultra fast crypt(3) implementation 3 * 4 * Copyright (C) 1991,92,93,96,97,98,2000,2004 Free Software Foundation, Inc. 5 * 6 * The GNU C Library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * The GNU C Library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with the GNU C Library; if not, write to the Free 18 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 19 * 02111-1307 USA. 20 * 21 * @(#)crypt.h 1.5 12/20/96 22 * 23 */ 24 25 #ifndef _CRYPT_H 26 #define _CRYPT_H 1 27 28 #include <features.h> 29 30 __BEGIN_DECLS 31 32 /* Encrypt at most 8 characters from KEY using salt to perturb DES. */ 33 extern char *crypt (__const char *__key, __const char *__salt) 34 __THROW __nonnull ((1, 2)); 35 36 /* Setup DES tables according KEY. */ 37 extern void setkey (__const char *__key) __THROW __nonnull ((1)); 38 39 /* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt 40 block in place. */ 41 extern void encrypt (char *__block, int __edflag) __THROW __nonnull ((1)); 42 43 #ifdef __USE_GNU 44 /* Reentrant versions of the functions above. The additional argument 45 points to a structure where the results are placed in. */ 46 struct crypt_data 47 { 48 char keysched[16 * 8]; 49 char sb0[32768]; 50 char sb1[32768]; 51 char sb2[32768]; 52 char sb3[32768]; 53 /* end-of-aligment-critical-data */ 54 char crypt_3_buf[14]; 55 char current_salt[2]; 56 long int current_saltbits; 57 int direction, initialized; 58 }; 59 60 extern char *crypt_r (__const char *__key, __const char *__salt, 61 struct crypt_data * __restrict __data) 62 __THROW __nonnull ((1, 2, 3)); 63 64 extern void setkey_r (__const char *__key, 65 struct crypt_data * __restrict __data) 66 __THROW __nonnull ((1, 2)); 67 68 extern void encrypt_r (char *__block, int __edflag, 69 struct crypt_data * __restrict __data) 70 __THROW __nonnull ((1, 3)); 71 #endif 72 73 __END_DECLS 74 75 #endif /* crypt.h */ 76
