--- /dev/null
+# You must select the correct terminal control system to be used to
+# turn character echo off when reading passwords. There a 5 systems
+# SGTTY - the old BSD system
+# TERMIO - most system V boxes
+# TERMIOS - SGI (ala IRIX).
+# VMS - the DEC operating system
+# MSDOS - we all know what it is :-)
+# read_pwd.c makes a reasonable guess at what is correct.
+
+# Targets
+# make - twidle the options yourself :-)
+# make cc - standard cc options
+# make gcc - standard gcc options
+# make x86-elf - linux-elf etc
+# make x86-out - linux-a.out, FreeBSD etc
+# make x86-solaris
+# make x86-bdsi
+
+# If you are on a DEC Alpha, edit des.h and change the DES_LONG
+# define to 'unsigned int'. I have seen this give a %20 speedup.
+
+OPTS0= -DLIBDES_LIT -DRAND -DTERMIO #-DNOCONST
+
+# Version 1.94 has changed the strings_to_key function so that it is
+# now compatible with MITs when the string is longer than 8 characters.
+# If you wish to keep the old version, uncomment the following line.
+# This will affect the -E/-D options on des(1).
+#OPTS1= -DOLD_STR_TO_KEY
+
+# There are 4 possible performance options
+# -DDES_PTR
+# -DDES_RISC1
+# -DDES_RISC2 (only one of DES_RISC1 and DES_RISC2)
+# -DDES_UNROLL
+# after the initial build, run 'des_opts' to see which options are best
+# for your platform. There are some listed in options.txt
+#OPTS2= -DDES_PTR
+#OPTS3= -DDES_RISC1 # or DES_RISC2
+#OPTS4= -DDES_UNROLL
+
+OPTS= $(OPTS0) $(OPTS1) $(OPTS2) $(OPTS3) $(OPTS4)
+
+MAKE=make -f Makefile
+#CC=cc
+#CFLAG= -O
+
+#CC=gcc
+#CFLAG= -O4 -funroll-loops -fomit-frame-pointer
+# normally overridden by FreeS/WAN Makefiles anyway
+CFLAG= -O3 -fomit-frame-pointer # -I${KLIPSD}/include -I${SRCDIR}
+
+CFLAGS=$(OPTS) $(CFLAG) $(USERCOMPILE)
+CPP=$(CC) -E
+
+# Assember version of des_encrypt*().
+DES_ENC=des_enc.o fcrypt_b.o # normal C version
+#DES_ENC=asm/dx86-elf.o asm/yx86-elf.o # elf format x86
+#DES_ENC=asm/dx86-out.o asm/yx86-out.o # a.out format x86
+#DES_ENC=asm/dx86-sol.o asm/yx86-sol.o # solaris format x86
+#DES_ENC=asm/dx86bsdi.o asm/yx86basi.o # bsdi format x86
+
+LIBDIR=$(DESTDIR)$(INC_USRLOCAL)/lib
+INCDIR=$(DESTDIR)$(INC_USRLOCAL)/include
+MANDIR=$(MANTREE)
+MAN1=1
+MAN3=3
+SHELL=/bin/sh
+MAN1=1
+MAN3=3
+SHELL=/bin/sh
+OBJ_LIT=cbc_enc.o ecb_enc.o $(DES_ENC) fcrypt.o set_key.o
+OBJ_FULL=cbc_cksm.o $(OBJ_LIT) pcbc_enc.o \
+ xcbc_enc.o qud_cksm.o \
+ cfb64ede.o cfb64enc.o cfb_enc.o ecb3_enc.o \
+ enc_read.o enc_writ.o ofb64ede.o ofb64enc.o ofb_enc.o \
+ rand_key.o read_pwd.o read2pwd.o rpc_enc.o str2key.o supp.o
+
+GENERAL_LIT=COPYRIGHT INSTALL README VERSION Makefile des_crypt.man \
+ des.doc options.txt asm
+
+GENERAL_FULL=$(GENERAL_LIT) FILES Imakefile times vms.com KERBEROS MODES.DES \
+ des.man DES.pm DES.pod DES.xs Makefile.PL dess.S des3s.S \
+ Makefile.uni typemap t Makefile.ssl makefile.bc Makefile.lit \
+ des.org des_locl.org
+
+TESTING_LIT= destest speed des_opts
+TESTING_FULL= rpw $(TESTING_LIT)
+TESTING_SRC_LIT=destest.c speed.c des_opts.c
+TESTING_SRC_FULL=rpw.c $(TESTING_SRC_LIT)
+HEADERS_LIT=des_ver.h des.h des_locl.h podd.h sk.h spr.h
+HEADERS_FULL= $(HEADERS_LIT) rpc_des.h
+LIBDES_LIT=cbc_enc.c ecb_enc.c fcrypt.c set_key.c des_enc.c fcrypt_b.c
+
+LIBDES_FULL= cbc_cksm.c pcbc_enc.c qud_cksm.c \
+ cfb64ede.c cfb64enc.c cfb_enc.c ecb3_enc.c \
+ enc_read.c enc_writ.c ofb64ede.c ofb64enc.c ofb_enc.c \
+ rand_key.c rpc_enc.c str2key.c supp.c \
+ xcbc_enc.c $(LIBDES_LIT) read_pwd.c read2pwd.c
+
+PERL= des.pl testdes.pl doIP doPC1 doPC2 PC1 PC2 shifts.pl
+
+OBJ= $(OBJ_LIT)
+GENERAL=$(GENERAL_LIT)
+TESTING=$(TESTING_LIT)
+TESTING_SRC=$(TESTING_SRC_LIT)
+HEADERS=$(HEADERS_LIT)
+LIBDES= $(LIBDES_LIT)
+
+ALL= $(GENERAL) $(TESTING_SRC) $(LIBDES) $(PERL) $(HEADERS)
+
+DLIB= libdes.a
+
+.PHONY: all cc gcc x86-elf x86-out x86-solaris x86-bsdi test tar_lit \
+ tar shar depend clean dclean install check checkprograms
+
+all: $(DLIB)
+programs: $(DLIB)
+
+cc:
+ $(MAKE) CC=cc CFLAGS="-O $(OPTS) $(CFLAG)" all
+
+gcc:
+ $(MAKE) CC=gcc CFLAGS="-O3 -fomit-frame-pointer $(OPTS) $(CFLAG)" all
+
+x86-elf:
+ $(MAKE) DES_ENC='asm/dx86-elf.o asm/yx86-elf.o' CC='$(CC)' CFLAGS="-DELF $(OPTS) $(CFLAG)" all
+
+x86-out:
+ $(MAKE) DES_ENC='asm/dx86-out.o asm/yx86-out.o' CC='$(CC)' CFLAGS="-DOUT $(OPTS) $(CFLAG)" all
+
+x86-solaris:
+ $(MAKE) DES_ENC='asm/dx86-sol.o asm/yx86-sol.o' CC='$(CC)' CFLAGS="-DSOL $(OPTS) $(CFLAG)" all
+
+x86-bsdi:
+ $(MAKE) DES_ENC='asm/dx86bsdi.o asm/yx86bsdi.o' CC='$(CC)' CFLAGS="-DBSDI $(OPTS) $(CFLAG)" all
+
+# elf
+asm/dx86-elf.o: asm/dx86unix.S
+ $(CPP) -DELF asm/dx86unix.S | $(AS) -o asm/dx86-elf.o
+
+asm/yx86-elf.o: asm/yx86unix.S
+ $(CPP) -DELF asm/yx86unix.S | $(AS) -o asm/yx86-elf.o
+
+# solaris
+asm/dx86-sol.o: asm/dx86unix.S
+ $(CC) -E -DSOL asm/dx86unix.S | sed 's/^#.*//' > asm/dx86-sol.s
+ as -o asm/dx86-sol.o asm/dx86-sol.s
+ rm -f asm/dx86-sol.s
+
+asm/yx86-sol.o: asm/yx86unix.S
+ $(CC) -E -DSOL asm/yx86unix.S | sed 's/^#.*//' > asm/yx86-sol.s
+ as -o asm/yx86-sol.o asm/yx86-sol.s
+ rm -f asm/yx86-sol.s
+
+# a.out
+asm/dx86-out.o: asm/dx86unix.S
+ $(CPP) -DOUT asm/dx86unix.S | $(AS) -o asm/dx86-out.o
+
+asm/yx86-out.o: asm/yx86unix.S
+ $(CPP) -DOUT asm/yx86unix.S | $(AS) -o asm/yx86-out.o
+
+# bsdi
+asm/dx86bsdi.o: asm/dx86unix.S
+ $(CPP) -DBSDI asm/dx86unix.S | $(AS) -o asm/dx86bsdi.o
+
+asm/yx86bsdi.o: asm/yx86unix.S
+ $(CPP) -DBSDI asm/yx86unix.S | $(AS) -o asm/yx86bsdi.o
+
+asm/dx86unix.S:
+ (cd asm; perl des-586.pl cpp >dx86unix.S)
+
+asm/yx86unix.S:
+ (cd asm; perl crypt586.pl cpp >yx86unix.S)
+
+test: all $(TESTING)
+ ./destest
+
+$(DLIB): $(OBJ)
+ rm -f $(DLIB)
+ $(AR) crs $(DLIB) $(OBJ)
+
+des_opts: des_opts.o $(DLIB)
+ $(CC) $(CFLAGS) -o des_opts des_opts.o $(DLIB)
+
+destest: destest.o $(DLIB)
+ $(CC) $(CFLAGS) -o destest destest.o $(DLIB)
+
+rpw: rpw.o $(DLIB)
+ $(CC) $(CFLAGS) -o rpw rpw.o $(DLIB)
+
+speed: speed.o $(DLIB)
+ $(CC) $(CFLAGS) -o speed speed.o $(DLIB)
+
+des: des.o $(DLIB)
+ $(CC) $(CFLAGS) -o des des.o $(DLIB)
+
+tags:
+ ctags $(TESTING_SRC) $(LIBDES)
+
+tar_lit:
+ /bin/mv Makefile Makefile.tmp
+ /bin/cp Makefile.lit Makefile
+ tar chf libdes-l.tar $(LIBDES_LIT) $(HEADERS_LIT) \
+ $(GENERAL_LIT) $(TESTING_SRC_LIT)
+ /bin/rm -f Makefile
+ /bin/mv Makefile.tmp Makefile
+
+tar:
+ tar chf libdes.tar $(ALL)
+
+shar:
+ shar $(ALL) >libdes.shar
+
+depend:
+ makedepend $(LIBDES) $(TESTING_SRC)
+
+clean:
+ /bin/rm -f *.o tags core $(TESTING) $(DLIB) .nfs* *.old *.bak asm/*.o \
+ asm/*.S
+
+dclean:
+ sed -e '/^# DO NOT DELETE THIS LINE/ q' Makefile >Makefile.new
+ mv -f Makefile.new Makefile
+
+install install_file_list:
+ @true
+
+check:
+ echo no checks in lib right now.
+
+checkprograms:
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
--- /dev/null
+/* crypto/des/des.org */
+/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+/* WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+ *
+ * Always modify des.org since des.h is automatically generated from
+ * it during SSLeay configuration.
+ *
+ * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
+ */
+
+#ifndef HEADER_DES_H
+#define HEADER_DES_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* If this is set to 'unsigned int' on a DEC Alpha, this gives about a
+ * %20 speed up (longs are 8 bytes, int's are 4). */
+/* Must be unsigned int on ia64/Itanium or DES breaks badly */
+
+#ifdef __KERNEL__
+#include <linux/types.h>
+#else
+#include <sys/types.h>
+#endif
+
+#ifndef DES_LONG
+#define DES_LONG u_int32_t
+#endif
+
+typedef unsigned char des_cblock[8];
+typedef struct des_ks_struct
+ {
+ union {
+ des_cblock _;
+ /* make sure things are correct size on machines with
+ * 8 byte longs */
+ DES_LONG pad[2];
+ } ks;
+#undef _
+#define _ ks._
+ } des_key_schedule[16];
+
+#define DES_KEY_SZ (sizeof(des_cblock))
+#define DES_SCHEDULE_SZ (sizeof(des_key_schedule))
+
+#define DES_ENCRYPT 1
+#define DES_DECRYPT 0
+
+#define DES_CBC_MODE 0
+#define DES_PCBC_MODE 1
+
+#define des_ecb2_encrypt(i,o,k1,k2,e) \
+ des_ecb3_encrypt((i),(o),(k1),(k2),(k1),(e))
+
+#define des_ede2_cbc_encrypt(i,o,l,k1,k2,iv,e) \
+ des_ede3_cbc_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(e))
+
+#define des_ede2_cfb64_encrypt(i,o,l,k1,k2,iv,n,e) \
+ des_ede3_cfb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n),(e))
+
+#define des_ede2_ofb64_encrypt(i,o,l,k1,k2,iv,n) \
+ des_ede3_ofb64_encrypt((i),(o),(l),(k1),(k2),(k1),(iv),(n))
+
+#define C_Block des_cblock
+#define Key_schedule des_key_schedule
+#ifdef KERBEROS
+#define ENCRYPT DES_ENCRYPT
+#define DECRYPT DES_DECRYPT
+#endif
+#define KEY_SZ DES_KEY_SZ
+#define string_to_key des_string_to_key
+#define read_pw_string des_read_pw_string
+#define random_key des_random_key
+#define pcbc_encrypt des_pcbc_encrypt
+#define set_key des_set_key
+#define key_sched des_key_sched
+#define ecb_encrypt des_ecb_encrypt
+#define cbc_encrypt des_cbc_encrypt
+#define ncbc_encrypt des_ncbc_encrypt
+#define xcbc_encrypt des_xcbc_encrypt
+#define cbc_cksum des_cbc_cksum
+#define quad_cksum des_quad_cksum
+
+/* For compatibility with the MIT lib - eay 20/05/92 */
+typedef des_key_schedule bit_64;
+#define des_fixup_key_parity des_set_odd_parity
+#define des_check_key_parity check_parity
+
+extern int des_check_key; /* defaults to false */
+extern int des_rw_mode; /* defaults to DES_PCBC_MODE */
+
+/* The next line is used to disable full ANSI prototypes, if your
+ * compiler has problems with the prototypes, make sure this line always
+ * evaluates to true :-) */
+#if defined(MSDOS) || defined(__STDC__)
+#undef NOPROTO
+#endif
+#ifndef NOPROTO
+char *des_options(void);
+void des_ecb3_encrypt(des_cblock *input,des_cblock *output,
+ des_key_schedule ks1,des_key_schedule ks2,
+ des_key_schedule ks3, int enc);
+DES_LONG des_cbc_cksum(des_cblock *input,des_cblock *output,
+ long length,des_key_schedule schedule,des_cblock *ivec);
+void des_cbc_encrypt(des_cblock *input,des_cblock *output,long length,
+ des_key_schedule schedule,des_cblock *ivec,int enc);
+void des_ncbc_encrypt(des_cblock *input,des_cblock *output,long length,
+ des_key_schedule schedule,des_cblock *ivec,int enc);
+void des_xcbc_encrypt(des_cblock *input,des_cblock *output,long length,
+ des_key_schedule schedule,des_cblock *ivec,
+ des_cblock *inw,des_cblock *outw,int enc);
+void des_cfb_encrypt(unsigned char *in,unsigned char *out,int numbits,
+ long length,des_key_schedule schedule,des_cblock *ivec,int enc);
+void des_ecb_encrypt(des_cblock *input,des_cblock *output,
+ des_key_schedule ks,int enc);
+void des_encrypt(DES_LONG *data,des_key_schedule ks, int enc);
+void des_encrypt2(DES_LONG *data,des_key_schedule ks, int enc);
+void des_encrypt3(DES_LONG *data, des_key_schedule ks1,
+ des_key_schedule ks2, des_key_schedule ks3);
+void des_decrypt3(DES_LONG *data, des_key_schedule ks1,
+ des_key_schedule ks2, des_key_schedule ks3);
+void des_ede3_cbc_encrypt(des_cblock *input, des_cblock *output,
+ long length, des_key_schedule ks1, des_key_schedule ks2,
+ des_key_schedule ks3, des_cblock *ivec, int enc);
+void des_ede3_cfb64_encrypt(unsigned char *in, unsigned char *out,
+ long length, des_key_schedule ks1, des_key_schedule ks2,
+ des_key_schedule ks3, des_cblock *ivec, int *num, int enc);
+void des_ede3_ofb64_encrypt(unsigned char *in, unsigned char *out,
+ long length, des_key_schedule ks1, des_key_schedule ks2,
+ des_key_schedule ks3, des_cblock *ivec, int *num);
+
+void des_xwhite_in2out(des_cblock (*des_key), des_cblock (*in_white),
+ des_cblock (*out_white));
+
+int des_enc_read(int fd,char *buf,int len,des_key_schedule sched,
+ des_cblock *iv);
+int des_enc_write(int fd,char *buf,int len,des_key_schedule sched,
+ des_cblock *iv);
+char *des_fcrypt(const char *buf,const char *salt, char *ret);
+#ifdef PERL5
+char *des_crypt(const char *buf,const char *salt);
+#else
+/* some stupid compilers complain because I have declared char instead
+ * of const char */
+#ifndef __KERNEL__
+#ifdef HEADER_DES_LOCL_H
+char *crypt(const char *buf,const char *salt);
+#else /* HEADER_DES_LOCL_H */
+char *crypt(void);
+#endif /* HEADER_DES_LOCL_H */
+#endif /* __KERNEL__ */
+#endif /* PERL5 */
+void des_ofb_encrypt(unsigned char *in,unsigned char *out,
+ int numbits,long length,des_key_schedule schedule,des_cblock *ivec);
+void des_pcbc_encrypt(des_cblock *input,des_cblock *output,long length,
+ des_key_schedule schedule,des_cblock *ivec,int enc);
+DES_LONG des_quad_cksum(des_cblock *input,des_cblock *output,
+ long length,int out_count,des_cblock *seed);
+void des_random_seed(des_cblock key);
+void des_random_key(des_cblock ret);
+int des_read_password(des_cblock *key,char *prompt,int verify);
+int des_read_2passwords(des_cblock *key1,des_cblock *key2,
+ char *prompt,int verify);
+int des_read_pw_string(char *buf,int length,char *prompt,int verify);
+void des_set_odd_parity(des_cblock *key);
+int des_is_weak_key(des_cblock *key);
+int des_set_key(des_cblock *key,des_key_schedule schedule);
+int des_key_sched(des_cblock *key,des_key_schedule schedule);
+void des_string_to_key(char *str,des_cblock *key);
+void des_string_to_2keys(char *str,des_cblock *key1,des_cblock *key2);
+void des_cfb64_encrypt(unsigned char *in, unsigned char *out, long length,
+ des_key_schedule schedule, des_cblock *ivec, int *num, int enc);
+void des_ofb64_encrypt(unsigned char *in, unsigned char *out, long length,
+ des_key_schedule schedule, des_cblock *ivec, int *num);
+int des_read_pw(char *buf, char *buff, int size, char *prompt, int verify);
+
+/* Extra functions from Mark Murray <mark@grondar.za> */
+/* The following functions are not in the normal unix build or the
+ * SSLeay build. When using the SSLeay build, use RAND_seed()
+ * and RAND_bytes() instead. */
+int des_new_random_key(des_cblock *key);
+void des_init_random_number_generator(des_cblock *key);
+void des_set_random_generator_seed(des_cblock *key);
+void des_set_sequence_number(des_cblock new_sequence_number);
+void des_generate_random_block(des_cblock *block);
+
+#else
+
+char *des_options();
+void des_ecb3_encrypt();
+DES_LONG des_cbc_cksum();
+void des_cbc_encrypt();
+void des_ncbc_encrypt();
+void des_xcbc_encrypt();
+void des_cfb_encrypt();
+void des_ede3_cfb64_encrypt();
+void des_ede3_ofb64_encrypt();
+void des_ecb_encrypt();
+void des_encrypt();
+void des_encrypt2();
+void des_encrypt3();
+void des_decrypt3();
+void des_ede3_cbc_encrypt();
+int des_enc_read();
+int des_enc_write();
+char *des_fcrypt();
+#ifdef PERL5
+char *des_crypt();
+#else
+char *crypt();
+#endif
+void des_ofb_encrypt();
+void des_pcbc_encrypt();
+DES_LONG des_quad_cksum();
+void des_random_seed();
+void des_random_key();
+int des_read_password();
+int des_read_2passwords();
+int des_read_pw_string();
+void des_set_odd_parity();
+int des_is_weak_key();
+int des_set_key();
+int des_key_sched();
+void des_string_to_key();
+void des_string_to_2keys();
+void des_cfb64_encrypt();
+void des_ofb64_encrypt();
+int des_read_pw();
+void des_xwhite_in2out();
+
+/* Extra functions from Mark Murray <mark@grondar.za> */
+/* The following functions are not in the normal unix build or the
+ * SSLeay build. When using the SSLeay build, use RAND_seed()
+ * and RAND_bytes() instead. */
+#ifdef FreeBSD
+int des_new_random_key();
+void des_init_random_number_generator();
+void des_set_random_generator_seed();
+void des_set_sequence_number();
+void des_generate_random_block();
+#endif
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif