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| -rw-r--r-- | include/crypt.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/include/crypt.h b/include/crypt.h new file mode 100644 index 000000000..c589e80d1 --- /dev/null +++ b/include/crypt.h @@ -0,0 +1,74 @@ +/* + * UFC-crypt: ultra fast crypt(3) implementation + * + * Copyright (C) 1991, 92, 93, 96, 97, 98, 2000 Free Software Foundation, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with the GNU C Library; see the file COPYING.LIB. If not, + * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + * + * @(#)crypt.h 1.5 12/20/96 + * + */ + +#ifndef _CRYPT_H +#define _CRYPT_H 1 + +#include <features.h> + +/* Encrypt characters from KEY using salt to perturb the encryption method. + * If salt begins with "$1$", md5 hashing is used instead of DES. */ +extern char *crypt (const char *__key, const char *__salt); + +/* Setup DES tables according KEY. */ +extern void setkey (const char *__key); + +/* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt + block in place. */ +extern void encrypt (char *__block, int __edflag); + + +/* Reentrant versions of the functions above. The additional argument + points to a structure where the results are placed in. */ +struct crypt_data +{ + /* The C and D arrays used to calculate the key schedule. */ + char C[28]; + char D[28]; + /* The key schedule. Generated from the key. */ + char KS[16][48]; + /* The E bit-selection table. */ + char E[48]; + /* The current block, divided into 2 halves. */ + char L[32], R[32]; + char tempL[32]; + char f[32]; + /* The combination of the key and the input, before selection. */ + char preS[48]; + char block[66]; + char iobuf[16]; + /* Some stuff used by the md5 routines */ + char *p; + const char *sp,*ep; +}; + +extern char *crypt_r (const char *__key, const char *__salt, + struct crypt_data * __data); + +extern void setkey_r (const char *__key, + struct crypt_data * __data); + +extern void encrypt_r (char *__block, int __edflag, + struct crypt_data * __data); +#endif /* crypt.h */ |