jpayne@69: /*
jpayne@69:  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
jpayne@69:  *
jpayne@69:  * Licensed under the OpenSSL license (the "License").  You may not use
jpayne@69:  * this file except in compliance with the License.  You can obtain a copy
jpayne@69:  * in the file LICENSE in the source distribution or at
jpayne@69:  * https://www.openssl.org/source/license.html
jpayne@69:  */
jpayne@69: 
jpayne@69: #ifndef HEADER_DES_H
jpayne@69: # define HEADER_DES_H
jpayne@69: 
jpayne@69: # include <openssl/opensslconf.h>
jpayne@69: 
jpayne@69: # ifndef OPENSSL_NO_DES
jpayne@69: # ifdef  __cplusplus
jpayne@69: extern "C" {
jpayne@69: # endif
jpayne@69: # include <openssl/e_os2.h>
jpayne@69: 
jpayne@69: typedef unsigned int DES_LONG;
jpayne@69: 
jpayne@69: # ifdef OPENSSL_BUILD_SHLIBCRYPTO
jpayne@69: #  undef OPENSSL_EXTERN
jpayne@69: #  define OPENSSL_EXTERN OPENSSL_EXPORT
jpayne@69: # endif
jpayne@69: 
jpayne@69: typedef unsigned char DES_cblock[8];
jpayne@69: typedef /* const */ unsigned char const_DES_cblock[8];
jpayne@69: /*
jpayne@69:  * With "const", gcc 2.8.1 on Solaris thinks that DES_cblock * and
jpayne@69:  * const_DES_cblock * are incompatible pointer types.
jpayne@69:  */
jpayne@69: 
jpayne@69: typedef struct DES_ks {
jpayne@69:     union {
jpayne@69:         DES_cblock cblock;
jpayne@69:         /*
jpayne@69:          * make sure things are correct size on machines with 8 byte longs
jpayne@69:          */
jpayne@69:         DES_LONG deslong[2];
jpayne@69:     } ks[16];
jpayne@69: } DES_key_schedule;
jpayne@69: 
jpayne@69: # define DES_KEY_SZ      (sizeof(DES_cblock))
jpayne@69: # define DES_SCHEDULE_SZ (sizeof(DES_key_schedule))
jpayne@69: 
jpayne@69: # define DES_ENCRYPT     1
jpayne@69: # define DES_DECRYPT     0
jpayne@69: 
jpayne@69: # define DES_CBC_MODE    0
jpayne@69: # define DES_PCBC_MODE   1
jpayne@69: 
jpayne@69: # define DES_ecb2_encrypt(i,o,k1,k2,e) \
jpayne@69:         DES_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
jpayne@69: 
jpayne@69: # define DES_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
jpayne@69:         DES_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
jpayne@69: 
jpayne@69: # define DES_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
jpayne@69:         DES_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
jpayne@69: 
jpayne@69: # define DES_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
jpayne@69:         DES_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
jpayne@69: 
jpayne@69: OPENSSL_DECLARE_GLOBAL(int, DES_check_key); /* defaults to false */
jpayne@69: # define DES_check_key OPENSSL_GLOBAL_REF(DES_check_key)
jpayne@69: 
jpayne@69: const char *DES_options(void);
jpayne@69: void DES_ecb3_encrypt(const_DES_cblock *input, DES_cblock *output,
jpayne@69:                       DES_key_schedule *ks1, DES_key_schedule *ks2,
jpayne@69:                       DES_key_schedule *ks3, int enc);
jpayne@69: DES_LONG DES_cbc_cksum(const unsigned char *input, DES_cblock *output,
jpayne@69:                        long length, DES_key_schedule *schedule,
jpayne@69:                        const_DES_cblock *ivec);
jpayne@69: /* DES_cbc_encrypt does not update the IV!  Use DES_ncbc_encrypt instead. */
jpayne@69: void DES_cbc_encrypt(const unsigned char *input, unsigned char *output,
jpayne@69:                      long length, DES_key_schedule *schedule,
jpayne@69:                      DES_cblock *ivec, int enc);
jpayne@69: void DES_ncbc_encrypt(const unsigned char *input, unsigned char *output,
jpayne@69:                       long length, DES_key_schedule *schedule,
jpayne@69:                       DES_cblock *ivec, int enc);
jpayne@69: void DES_xcbc_encrypt(const unsigned char *input, unsigned char *output,
jpayne@69:                       long length, DES_key_schedule *schedule,
jpayne@69:                       DES_cblock *ivec, const_DES_cblock *inw,
jpayne@69:                       const_DES_cblock *outw, int enc);
jpayne@69: void DES_cfb_encrypt(const unsigned char *in, unsigned char *out, int numbits,
jpayne@69:                      long length, DES_key_schedule *schedule,
jpayne@69:                      DES_cblock *ivec, int enc);
jpayne@69: void DES_ecb_encrypt(const_DES_cblock *input, DES_cblock *output,
jpayne@69:                      DES_key_schedule *ks, int enc);
jpayne@69: 
jpayne@69: /*
jpayne@69:  * This is the DES encryption function that gets called by just about every
jpayne@69:  * other DES routine in the library.  You should not use this function except
jpayne@69:  * to implement 'modes' of DES.  I say this because the functions that call
jpayne@69:  * this routine do the conversion from 'char *' to long, and this needs to be
jpayne@69:  * done to make sure 'non-aligned' memory access do not occur.  The
jpayne@69:  * characters are loaded 'little endian'. Data is a pointer to 2 unsigned
jpayne@69:  * long's and ks is the DES_key_schedule to use.  enc, is non zero specifies
jpayne@69:  * encryption, zero if decryption.
jpayne@69:  */
jpayne@69: void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc);
jpayne@69: 
jpayne@69: /*
jpayne@69:  * This functions is the same as DES_encrypt1() except that the DES initial
jpayne@69:  * permutation (IP) and final permutation (FP) have been left out.  As for
jpayne@69:  * DES_encrypt1(), you should not use this function. It is used by the
jpayne@69:  * routines in the library that implement triple DES. IP() DES_encrypt2()
jpayne@69:  * DES_encrypt2() DES_encrypt2() FP() is the same as DES_encrypt1()
jpayne@69:  * DES_encrypt1() DES_encrypt1() except faster :-).
jpayne@69:  */
jpayne@69: void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc);
jpayne@69: 
jpayne@69: void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1,
jpayne@69:                   DES_key_schedule *ks2, DES_key_schedule *ks3);
jpayne@69: void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1,
jpayne@69:                   DES_key_schedule *ks2, DES_key_schedule *ks3);
jpayne@69: void DES_ede3_cbc_encrypt(const unsigned char *input, unsigned char *output,
jpayne@69:                           long length,
jpayne@69:                           DES_key_schedule *ks1, DES_key_schedule *ks2,
jpayne@69:                           DES_key_schedule *ks3, DES_cblock *ivec, int enc);
jpayne@69: void DES_ede3_cfb64_encrypt(const unsigned char *in, unsigned char *out,
jpayne@69:                             long length, DES_key_schedule *ks1,
jpayne@69:                             DES_key_schedule *ks2, DES_key_schedule *ks3,
jpayne@69:                             DES_cblock *ivec, int *num, int enc);
jpayne@69: void DES_ede3_cfb_encrypt(const unsigned char *in, unsigned char *out,
jpayne@69:                           int numbits, long length, DES_key_schedule *ks1,
jpayne@69:                           DES_key_schedule *ks2, DES_key_schedule *ks3,
jpayne@69:                           DES_cblock *ivec, int enc);
jpayne@69: void DES_ede3_ofb64_encrypt(const unsigned char *in, unsigned char *out,
jpayne@69:                             long length, DES_key_schedule *ks1,
jpayne@69:                             DES_key_schedule *ks2, DES_key_schedule *ks3,
jpayne@69:                             DES_cblock *ivec, int *num);
jpayne@69: char *DES_fcrypt(const char *buf, const char *salt, char *ret);
jpayne@69: char *DES_crypt(const char *buf, const char *salt);
jpayne@69: void DES_ofb_encrypt(const unsigned char *in, unsigned char *out, int numbits,
jpayne@69:                      long length, DES_key_schedule *schedule,
jpayne@69:                      DES_cblock *ivec);
jpayne@69: void DES_pcbc_encrypt(const unsigned char *input, unsigned char *output,
jpayne@69:                       long length, DES_key_schedule *schedule,
jpayne@69:                       DES_cblock *ivec, int enc);
jpayne@69: DES_LONG DES_quad_cksum(const unsigned char *input, DES_cblock output[],
jpayne@69:                         long length, int out_count, DES_cblock *seed);
jpayne@69: int DES_random_key(DES_cblock *ret);
jpayne@69: void DES_set_odd_parity(DES_cblock *key);
jpayne@69: int DES_check_key_parity(const_DES_cblock *key);
jpayne@69: int DES_is_weak_key(const_DES_cblock *key);
jpayne@69: /*
jpayne@69:  * DES_set_key (= set_key = DES_key_sched = key_sched) calls
jpayne@69:  * DES_set_key_checked if global variable DES_check_key is set,
jpayne@69:  * DES_set_key_unchecked otherwise.
jpayne@69:  */
jpayne@69: int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule);
jpayne@69: int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule);
jpayne@69: int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule);
jpayne@69: void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule);
jpayne@69: void DES_string_to_key(const char *str, DES_cblock *key);
jpayne@69: void DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2);
jpayne@69: void DES_cfb64_encrypt(const unsigned char *in, unsigned char *out,
jpayne@69:                        long length, DES_key_schedule *schedule,
jpayne@69:                        DES_cblock *ivec, int *num, int enc);
jpayne@69: void DES_ofb64_encrypt(const unsigned char *in, unsigned char *out,
jpayne@69:                        long length, DES_key_schedule *schedule,
jpayne@69:                        DES_cblock *ivec, int *num);
jpayne@69: 
jpayne@69: # define DES_fixup_key_parity DES_set_odd_parity
jpayne@69: 
jpayne@69: # ifdef  __cplusplus
jpayne@69: }
jpayne@69: # endif
jpayne@69: # endif
jpayne@69: 
jpayne@69: #endif