/* * UFC-crypt: ultra fast crypt(3) implementation * * Copyright (C) 1991-1993,1996-1998,2000,2004,2012 * Free Software Foundation, Inc. * * The GNU C Library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * The GNU C Library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with the GNU C Library; if not, see * <http://www.gnu.org/licenses/>. * * @(#)crypt.h 1.5 12/20/96 * */ #ifndef _CRYPT_H #define _CRYPT_H 1 #include <features.h> __BEGIN_DECLS /* Encrypt at most 8 characters from KEY using salt to perturb DES. */ extern char *crypt (const char *__key, const char *__salt) __THROW __nonnull ((1, 2)); /* Setup DES tables according KEY. */ extern void setkey (const char *__key) __THROW __nonnull ((1)); /* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt block in place. */ extern void encrypt (char *__block, int __edflag) __THROW __nonnull ((1)); #ifdef __USE_GNU /* Reentrant versions of the functions above. The additional argument points to a structure where the results are placed in. */ struct crypt_data { char keysched[16 * 8]; char sb0[32768]; char sb1[32768]; char sb2[32768]; char sb3[32768]; /* end-of-aligment-critical-data */ char crypt_3_buf[14]; char current_salt[2]; long int current_saltbits; int direction, initialized; }; extern char *crypt_r (const char *__key, const char *__salt, struct crypt_data * __restrict __data) __THROW __nonnull ((1, 2, 3)); extern void setkey_r (const char *__key, struct crypt_data * __restrict __data) __THROW __nonnull ((1, 2)); extern void encrypt_r (char *__block, int __edflag, struct crypt_data * __restrict __data) __THROW __nonnull ((1, 3)); #endif __END_DECLS #endif /* crypt.h */

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