2 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
76 #include <sys/types.h>
85 #if defined(__STDC__) || defined(VMS) || defined(M_XENIX) || defined(MSDOS)
91 #define srandom(s) srand(s)
96 void doencryption(void);
97 int uufwrite(unsigned char *data, int size, unsigned int num, FILE *fp);
98 void uufwriteEnd(FILE *fp);
99 int uufread(unsigned char *out,int size,unsigned int num,FILE *fp);
100 int uuencode(unsigned char *in,int num,unsigned char *out);
101 int uudecode(unsigned char *in,int num,unsigned char *out);
113 #define EXIT(a) exit(a&0x10000000)
115 #define EXIT(a) exit(a)
118 #define BUFSIZE (8*1024)
121 #define KEYSIZB 1024 /* should hit tty line limit first :-) */
123 int do_encrypt,longk=0;
124 FILE *DES_IN,*DES_OUT,*CKSUM_OUT;
126 unsigned char uubuf[50];
128 #define INUUBUFN (45*100)
129 #define OUTUUBUF (65*100)
130 unsigned char b[OUTUUBUF];
131 unsigned char bb[300];
132 des_cblock cksum={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
133 char cksumname[200]="";
135 int vflag,cflag,eflag,dflag,kflag,bflag,fflag,sflag,uflag,flag3,hflag,error;
142 struct stat ins,outs;
144 char *in=NULL,*out=NULL;
146 vflag=cflag=eflag=dflag=kflag=hflag=bflag=fflag=sflag=uflag=flag3=0;
148 memset(key,0,sizeof(key));
150 for (i=1; i<argc; i++)
153 if ((p[0] == '-') && (p[1] != '\0'))
166 strncpy(cksumname,p,200);
167 p+=strlen(cksumname);
172 strncpy(cksumname,p,200);
173 p+=strlen(cksumname);
203 strncpy(uuname,p,200);
213 fputs("must have a key with the -k option\n",stderr);
221 strncpy(key,argv[i],KEYSIZB);
222 for (j=strlen(argv[i])-1; j>=0; j--)
227 fprintf(stderr,"'%c' unknown flag\n",p[-1]);
237 else if (out == NULL)
248 * do decrypt then ckecksum or
249 * do checksum then encrypt
251 if (((eflag+dflag) == 1) || cflag)
253 if (eflag) do_encrypt=DES_ENCRYPT;
254 if (dflag) do_encrypt=DES_DECRYPT;
261 fprintf(stderr,"des(1) built with %s\n",libdes_version);
269 if (vflag) fprintf(stderr,"des(1) built with %s\n",libdes_version);
274 (stat(in,&ins) != -1) &&
275 (stat(out,&outs) != -1) &&
276 (ins.st_dev == outs.st_dev) &&
277 (ins.st_ino == outs.st_ino))
279 (strcmp(in,out) == 0))
282 fputs("input and output file are the same\n",stderr);
287 if (des_read_pw_string(key,KEYSIZB+1,"Enter key:",eflag?VERIFY:0))
289 fputs("password error\n",stderr);
295 else if ((DES_IN=fopen(in,"r")) == NULL)
297 perror("opening input file");
307 else if ((DES_OUT=fopen(out,"w")) == NULL)
309 perror("opening output file");
314 /* This should set the file to binary mode. */
317 if (!(uflag && dflag))
318 setmode(fileno(DES_IN),O_BINARY);
319 if (!(uflag && eflag))
320 setmode(fileno(DES_OUT),O_BINARY);
333 static const char *Usage[]={
334 "des <options> [input-file [output-file]]",
336 "-v : des(1) version number",
337 "-e : encrypt using sunOS compatible user key to DES key conversion.",
339 "-d : decrypt using sunOS compatible user key to DES key conversion.",
341 "-c[ckname] : generate a cbc_cksum using sunOS compatible user key to",
342 " DES key conversion and output to ckname (stdout default,",
343 " stderr if data being output on stdout). The checksum is",
344 " generated before encryption and after decryption if used",
345 " in conjunction with -[eEdD].",
346 "-C[ckname] : generate a cbc_cksum as for -c but compatible with -[ED].",
347 "-k key : use key 'key'",
348 "-h : the key that is entered will be a hexidecimal number",
349 " that is used directly as the des key",
350 "-u[uuname] : input file is uudecoded if -[dD] or output uuencoded data if -[eE]",
351 " (uuname is the filename to put in the uuencode header).",
352 "-b : encrypt using DES in ecb encryption mode, the defaut is cbc mode.",
353 "-3 : encrypt using tripple DES encryption. This uses 2 keys",
354 " generated from the input key. If the input key is less",
355 " than 8 characters long, this is equivelent to normal",
356 " encryption. Default is tripple cbc, -b makes it tripple ecb.",
359 for (u=(char **)Usage; *u; u++)
371 extern int srandom();
373 extern unsigned long time();
377 des_key_schedule ks,ks2;
378 unsigned char iv[8],iv2[8];
380 int num=0,j,k,l,rem,ll,len,last,ex=0;
385 static unsigned char buf[BUFSIZE+8],obuf[BUFSIZE+8];
387 static unsigned char *buf=NULL,*obuf=NULL;
391 if ( (( buf=(unsigned char *)Malloc(BUFSIZE+8)) == NULL) ||
392 ((obuf=(unsigned char *)Malloc(BUFSIZE+8)) == NULL))
394 fputs("Not enough memory\n",stderr);
408 if ((*p <= '9') && (*p >= '0'))
410 else if ((*p <= 'f') && (*p >= 'a'))
412 else if ((*p <= 'F') && (*p >= 'A'))
416 fputs("Bad hex key\n",stderr);
421 if ((*p <= '9') && (*p >= '0'))
423 else if ((*p <= 'f') && (*p >= 'a'))
425 else if ((*p <= 'F') && (*p >= 'A'))
429 fputs("Bad hex key\n",stderr);
439 des_set_key((C_Block *)k2,ks2);
440 memset(k2,0,sizeof(k2));
442 else if (longk || flag3)
446 des_string_to_2keys(key,(C_Block *)kk,(C_Block *)k2);
447 des_set_key((C_Block *)k2,ks2);
448 memset(k2,0,sizeof(k2));
451 des_string_to_key(key,(C_Block *)kk);
454 for (i=0; i<KEYSIZ; i++)
469 des_set_key((C_Block *)kk,ks);
470 memset(key,0,sizeof(key));
471 memset(kk,0,sizeof(kk));
472 /* woops - A bug that does not showup under unix :-( */
473 memset(iv,0,sizeof(iv));
474 memset(iv2,0,sizeof(iv2));
479 if (eflag || (!dflag && cflag))
483 num=l=fread(&(buf[rem]),1,BUFSIZE,DES_IN);
488 perror("read error");
497 srandom((unsigned int)time(NULL));
498 for (i=7-rem; i>0; i--)
499 buf[l++]=random()&0xff;
509 des_cbc_cksum((C_Block *)buf,(C_Block *)cksum,
510 (long)len,ks,(C_Block *)cksum);
513 if (feof(DES_IN)) break;
521 (des_cblock *)&(buf[i]),
522 (des_cblock *)&(obuf[i]),
524 else if (flag3 && bflag)
527 (des_cblock *)&(buf[i]),
528 (des_cblock *)&(obuf[i]),
530 else if (flag3 && !bflag)
534 if (rem) memcpy(tmpbuf,&(buf[l]),
537 (des_cblock *)buf,(des_cblock *)obuf,
538 (long)l,ks,ks2,(des_cblock *)iv,
539 (des_cblock *)iv2,do_encrypt);
540 if (rem) memcpy(&(buf[l]),tmpbuf,
546 (des_cblock *)buf,(des_cblock *)obuf,
547 (long)l,ks,(des_cblock *)iv,do_encrypt);
548 if (l >= 8) memcpy(iv,&(obuf[l-8]),8);
550 if (rem) memcpy(buf,&(buf[l]),(unsigned int)rem);
556 j=uufwrite(obuf,1,(unsigned int)l-i,
559 j=fwrite(obuf,1,(unsigned int)l-i,
563 perror("Write error");
571 if (uflag) uufwriteEnd(DES_OUT);
583 l=uufread(buf,1,BUFSIZE,DES_IN);
585 l=fread(buf,1,BUFSIZE,DES_IN);
592 perror("read error");
600 (des_cblock *)&(buf[i]),
601 (des_cblock *)&(obuf[i]),
603 else if (flag3 && bflag)
606 (des_cblock *)&(buf[i]),
607 (des_cblock *)&(obuf[i]),
609 else if (flag3 && !bflag)
612 (des_cblock *)buf,(des_cblock *)obuf,
613 (long)l,ks,ks2,(des_cblock *)iv,
614 (des_cblock *)iv2,do_encrypt);
619 (des_cblock *)buf,(des_cblock *)obuf,
620 (long)l,ks,(des_cblock *)iv,do_encrypt);
621 if (l >= 8) memcpy(iv,&(buf[l-8]),8);
625 ll=uufread(&(buf[rem]),1,BUFSIZE,DES_IN);
627 ll=fread(&(buf[rem]),1,BUFSIZE,DES_IN);
631 if (feof(DES_IN) && (ll == 0))
635 if ((last > 7) || (last < 0))
637 fputs("The file was not decrypted correctly.\n",
645 if (cflag) des_cbc_cksum((C_Block *)obuf,
646 (C_Block *)cksum,(long)l/8*8,ks,
650 j=fwrite(obuf,1,(unsigned int)l-i,DES_OUT);
653 perror("Write error");
660 if ((l == 0) && feof(DES_IN)) break;
666 if (cksumname[0] != '\0')
668 if ((O=fopen(cksumname,"w")) != NULL)
675 fprintf(CKSUM_OUT,"%02X",cksum[i]);
676 fprintf(CKSUM_OUT,"\n");
677 if (l) fclose(CKSUM_OUT);
680 memset(buf,0,sizeof(buf));
681 memset(obuf,0,sizeof(obuf));
682 memset(ks,0,sizeof(ks));
683 memset(ks2,0,sizeof(ks2));
684 memset(iv,0,sizeof(iv));
685 memset(iv2,0,sizeof(iv2));
686 memset(kk,0,sizeof(kk));
687 memset(k2,0,sizeof(k2));
688 memset(uubuf,0,sizeof(uubuf));
689 memset(b,0,sizeof(b));
690 memset(bb,0,sizeof(bb));
691 memset(cksum,0,sizeof(cksum));
692 if (Exit) EXIT(Exit);
695 int uufwrite(data, size, num, fp)
701 /* We ignore this parameter but it should be > ~50 I believe */
705 int i,j,left,rem,ret=num;
710 fprintf(fp,"begin 600 %s\n",
711 (uuname[0] == '\0')?"text.d":uuname);
717 if (uubufnum+num < 45)
719 memcpy(&(uubuf[uubufnum]),data,(unsigned int)num);
726 memcpy(&(uubuf[uubufnum]),data,(unsigned int)i);
727 j=uuencode((unsigned char *)uubuf,45,b);
728 fwrite(b,1,(unsigned int)j,fp);
735 for (i=0; i<(((int)num)-INUUBUFN); i+=INUUBUFN)
737 j=uuencode(&(data[i]),INUUBUFN,b);
738 fwrite(b,1,(unsigned int)j,fp);
744 j=uuencode(&(data[i]),left,b);
745 fwrite(b,1,(unsigned int)j,fp);
750 memcpy(uubuf,&(data[i]),(unsigned int)rem);
760 static const char *end=" \nend\n";
764 uubuf[uubufnum]='\0';
765 uubuf[uubufnum+1]='\0';
766 uubuf[uubufnum+2]='\0';
767 j=uuencode(uubuf,uubufnum,b);
768 fwrite(b,1,(unsigned int)j,fp);
770 fwrite(end,1,strlen(end),fp);
773 int uufread(out, size, num, fp)
775 int size; /* should always be > ~ 60; I actually ignore this parameter :-) */
789 fgets((char *)b,300,fp);
792 fprintf(stderr,"no 'begin' found in uuencoded input\n");
795 if (strncmp((char *)b,"begin ",6) == 0) break;
803 memcpy(out,bb,(unsigned int)valid);
810 fgets((char *)b,300,fp);
811 if (b[0] == '\0') break;
813 if ((b[0] == 'e') && (b[1] == 'n') && (b[2] == 'd'))
818 fgets((char *)b,300,fp);
826 /* num to copy to make it a multiple of 8 */
828 memcpy(&(out[tot]),bb,(unsigned int)j);
830 memcpy(bb,&(bb[j]),(unsigned int)i-j);
834 memcpy(&(out[tot]),bb,(unsigned int)i);
840 #define ccc2l(c,l) (l =((DES_LONG)(*((c)++)))<<16, \
841 l|=((DES_LONG)(*((c)++)))<< 8, \
842 l|=((DES_LONG)(*((c)++))))
844 #define l2ccc(l,c) (*((c)++)=(unsigned char)(((l)>>16)&0xff), \
845 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
846 *((c)++)=(unsigned char)(((l) )&0xff))
849 int uuencode(in, num, out)
856 register unsigned char *p;
859 for (j=0; j<num; j+=45)
868 *(p++)=((l>>18)&0x3f)+' ';
869 *(p++)=((l>>12)&0x3f)+' ';
870 *(p++)=((l>> 6)&0x3f)+' ';
871 *(p++)=((l )&0x3f)+' ';
882 int uudecode(in, num, out)
888 unsigned int n=0,space=0;
891 unsigned int blank=(unsigned int)'\n'-' ';
903 fprintf(stderr,"uuencoded line length too long\n");
908 for (i=0; i<n; j+=4,i+=3)
910 /* the following is for cases where spaces are
911 * removed from lines.
924 if ((w > 63) || (x > 63) || (y > 63) || (z > 63))
940 fprintf(stderr,"bad uuencoded data values\n");
946 l=(w<<18)|(x<<12)|(y<< 6)|(z );
951 fprintf(stderr,"missing nl in uuencoded line\n");