diff options
Diffstat (limited to 'openssl/crypto/des/des.c')
| -rw-r--r-- | openssl/crypto/des/des.c | 1562 |
1 files changed, 748 insertions, 814 deletions
diff --git a/openssl/crypto/des/des.c b/openssl/crypto/des/des.c index 343135ff9..2bff28125 100644 --- a/openssl/crypto/des/des.c +++ b/openssl/crypto/des/des.c @@ -5,21 +5,21 @@ * 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: @@ -34,10 +34,10 @@ * 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 + * 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 @@ -49,7 +49,7 @@ * 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 @@ -61,30 +61,30 @@ #include <string.h> #include <openssl/opensslconf.h> #ifndef OPENSSL_SYS_MSDOS -#ifndef OPENSSL_SYS_VMS -#include OPENSSL_UNISTD -#else /* OPENSSL_SYS_VMS */ -#ifdef __DECC -#include <unistd.h> -#else /* not __DECC */ -#include <math.h> -#endif /* __DECC */ -#endif /* OPENSSL_SYS_VMS */ -#else /* OPENSSL_SYS_MSDOS */ -#include <io.h> +# ifndef OPENSSL_SYS_VMS +# include OPENSSL_UNISTD +# else /* OPENSSL_SYS_VMS */ +# ifdef __DECC +# include <unistd.h> +# else /* not __DECC */ +# include <math.h> +# endif /* __DECC */ +# endif /* OPENSSL_SYS_VMS */ +#else /* OPENSSL_SYS_MSDOS */ +# include <io.h> #endif #include <time.h> #include "des_ver.h" #ifdef OPENSSL_SYS_VMS -#include <types.h> -#include <stat.h> +# include <types.h> +# include <stat.h> #else -#ifndef _IRIX -#include <sys/types.h> -#endif -#include <sys/stat.h> +# ifndef _IRIX +# include <sys/types.h> +# endif +# include <sys/stat.h> #endif #include <openssl/des.h> #include <openssl/rand.h> @@ -94,839 +94,773 @@ void usage(void); void doencryption(void); int uufwrite(unsigned char *data, int size, unsigned int num, FILE *fp); void uufwriteEnd(FILE *fp); -int uufread(unsigned char *out,int size,unsigned int num,FILE *fp); -int uuencode(unsigned char *in,int num,unsigned char *out); -int uudecode(unsigned char *in,int num,unsigned char *out); -void DES_3cbc_encrypt(DES_cblock *input,DES_cblock *output,long length, - DES_key_schedule sk1,DES_key_schedule sk2, - DES_cblock *ivec1,DES_cblock *ivec2,int enc); +int uufread(unsigned char *out, int size, unsigned int num, FILE *fp); +int uuencode(unsigned char *in, int num, unsigned char *out); +int uudecode(unsigned char *in, int num, unsigned char *out); +void DES_3cbc_encrypt(DES_cblock *input, DES_cblock *output, long length, + DES_key_schedule sk1, DES_key_schedule sk2, + DES_cblock *ivec1, DES_cblock *ivec2, int enc); #ifdef OPENSSL_SYS_VMS -#define EXIT(a) exit(a&0x10000000L) +# define EXIT(a) exit(a&0x10000000L) #else -#define EXIT(a) exit(a) +# define EXIT(a) exit(a) #endif #define BUFSIZE (8*1024) #define VERIFY 1 -#define KEYSIZ 8 -#define KEYSIZB 1024 /* should hit tty line limit first :-) */ -char key[KEYSIZB+1]; -int do_encrypt,longk=0; -FILE *DES_IN,*DES_OUT,*CKSUM_OUT; +#define KEYSIZ 8 +#define KEYSIZB 1024 /* should hit tty line limit first :-) */ +char key[KEYSIZB + 1]; +int do_encrypt, longk = 0; +FILE *DES_IN, *DES_OUT, *CKSUM_OUT; char uuname[200]; unsigned char uubuf[50]; -int uubufnum=0; -#define INUUBUFN (45*100) -#define OUTUUBUF (65*100) +int uubufnum = 0; +#define INUUBUFN (45*100) +#define OUTUUBUF (65*100) unsigned char b[OUTUUBUF]; unsigned char bb[300]; -DES_cblock cksum={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; -char cksumname[200]=""; +DES_cblock cksum = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; -int vflag,cflag,eflag,dflag,kflag,bflag,fflag,sflag,uflag,flag3,hflag,error; +char cksumname[200] = ""; + +int vflag, cflag, eflag, dflag, kflag, bflag, fflag, sflag, uflag, flag3, + hflag, error; int main(int argc, char **argv) - { - int i; - struct stat ins,outs; - char *p; - char *in=NULL,*out=NULL; - - vflag=cflag=eflag=dflag=kflag=hflag=bflag=fflag=sflag=uflag=flag3=0; - error=0; - memset(key,0,sizeof(key)); - - for (i=1; i<argc; i++) - { - p=argv[i]; - if ((p[0] == '-') && (p[1] != '\0')) - { - p++; - while (*p) - { - switch (*(p++)) - { - case '3': - flag3=1; - longk=1; - break; - case 'c': - cflag=1; - strncpy(cksumname,p,200); - cksumname[sizeof(cksumname)-1]='\0'; - p+=strlen(cksumname); - break; - case 'C': - cflag=1; - longk=1; - strncpy(cksumname,p,200); - cksumname[sizeof(cksumname)-1]='\0'; - p+=strlen(cksumname); - break; - case 'e': - eflag=1; - break; - case 'v': - vflag=1; - break; - case 'E': - eflag=1; - longk=1; - break; - case 'd': - dflag=1; - break; - case 'D': - dflag=1; - longk=1; - break; - case 'b': - bflag=1; - break; - case 'f': - fflag=1; - break; - case 's': - sflag=1; - break; - case 'u': - uflag=1; - strncpy(uuname,p,200); - uuname[sizeof(uuname)-1]='\0'; - p+=strlen(uuname); - break; - case 'h': - hflag=1; - break; - case 'k': - kflag=1; - if ((i+1) == argc) - { - fputs("must have a key with the -k option\n",stderr); - error=1; - } - else - { - int j; - - i++; - strncpy(key,argv[i],KEYSIZB); - for (j=strlen(argv[i])-1; j>=0; j--) - argv[i][j]='\0'; - } - break; - default: - fprintf(stderr,"'%c' unknown flag\n",p[-1]); - error=1; - break; - } - } - } - else - { - if (in == NULL) - in=argv[i]; - else if (out == NULL) - out=argv[i]; - else - error=1; - } - } - if (error) usage(); - /* We either - * do checksum or - * do encrypt or - * do decrypt or - * do decrypt then ckecksum or - * do checksum then encrypt - */ - if (((eflag+dflag) == 1) || cflag) - { - if (eflag) do_encrypt=DES_ENCRYPT; - if (dflag) do_encrypt=DES_DECRYPT; - } - else - { - if (vflag) - { -#ifndef _Windows - fprintf(stderr,"des(1) built with %s\n",libdes_version); -#endif - EXIT(1); - } - else usage(); - } - -#ifndef _Windows - if (vflag) fprintf(stderr,"des(1) built with %s\n",libdes_version); -#endif - if ( (in != NULL) && - (out != NULL) && +{ + int i; + struct stat ins, outs; + char *p; + char *in = NULL, *out = NULL; + + vflag = cflag = eflag = dflag = kflag = hflag = bflag = fflag = sflag = + uflag = flag3 = 0; + error = 0; + memset(key, 0, sizeof(key)); + + for (i = 1; i < argc; i++) { + p = argv[i]; + if ((p[0] == '-') && (p[1] != '\0')) { + p++; + while (*p) { + switch (*(p++)) { + case '3': + flag3 = 1; + longk = 1; + break; + case 'c': + cflag = 1; + strncpy(cksumname, p, 200); + cksumname[sizeof(cksumname) - 1] = '\0'; + p += strlen(cksumname); + break; + case 'C': + cflag = 1; + longk = 1; + strncpy(cksumname, p, 200); + cksumname[sizeof(cksumname) - 1] = '\0'; + p += strlen(cksumname); + break; + case 'e': + eflag = 1; + break; + case 'v': + vflag = 1; + break; + case 'E': + eflag = 1; + longk = 1; + break; + case 'd': + dflag = 1; + break; + case 'D': + dflag = 1; + longk = 1; + break; + case 'b': + bflag = 1; + break; + case 'f': + fflag = 1; + break; + case 's': + sflag = 1; + break; + case 'u': + uflag = 1; + strncpy(uuname, p, 200); + uuname[sizeof(uuname) - 1] = '\0'; + p += strlen(uuname); + break; + case 'h': + hflag = 1; + break; + case 'k': + kflag = 1; + if ((i + 1) == argc) { + fputs("must have a key with the -k option\n", stderr); + error = 1; + } else { + int j; + + i++; + strncpy(key, argv[i], KEYSIZB); + for (j = strlen(argv[i]) - 1; j >= 0; j--) + argv[i][j] = '\0'; + } + break; + default: + fprintf(stderr, "'%c' unknown flag\n", p[-1]); + error = 1; + break; + } + } + } else { + if (in == NULL) + in = argv[i]; + else if (out == NULL) + out = argv[i]; + else + error = 1; + } + } + if (error) + usage(); + /*- + * We either + * do checksum or + * do encrypt or + * do decrypt or + * do decrypt then ckecksum or + * do checksum then encrypt + */ + if (((eflag + dflag) == 1) || cflag) { + if (eflag) + do_encrypt = DES_ENCRYPT; + if (dflag) + do_encrypt = DES_DECRYPT; + } else { + if (vflag) { +#ifndef _Windows + fprintf(stderr, "des(1) built with %s\n", libdes_version); +#endif + EXIT(1); + } else + usage(); + } + +#ifndef _Windows + if (vflag) + fprintf(stderr, "des(1) built with %s\n", libdes_version); +#endif + if ((in != NULL) && (out != NULL) && #ifndef OPENSSL_SYS_MSDOS - (stat(in,&ins) != -1) && - (stat(out,&outs) != -1) && - (ins.st_dev == outs.st_dev) && - (ins.st_ino == outs.st_ino)) -#else /* OPENSSL_SYS_MSDOS */ - (strcmp(in,out) == 0)) + (stat(in, &ins) != -1) && + (stat(out, &outs) != -1) && + (ins.st_dev == outs.st_dev) && (ins.st_ino == outs.st_ino)) +#else /* OPENSSL_SYS_MSDOS */ + (strcmp(in, out) == 0)) #endif - { - fputs("input and output file are the same\n",stderr); - EXIT(3); - } - - if (!kflag) - if (des_read_pw_string(key,KEYSIZB+1,"Enter key:",eflag?VERIFY:0)) - { - fputs("password error\n",stderr); - EXIT(2); - } - - if (in == NULL) - DES_IN=stdin; - else if ((DES_IN=fopen(in,"r")) == NULL) - { - perror("opening input file"); - EXIT(4); - } - - CKSUM_OUT=stdout; - if (out == NULL) - { - DES_OUT=stdout; - CKSUM_OUT=stderr; - } - else if ((DES_OUT=fopen(out,"w")) == NULL) - { - perror("opening output file"); - EXIT(5); - } - + { + fputs("input and output file are the same\n", stderr); + EXIT(3); + } + + if (!kflag) + if (des_read_pw_string + (key, KEYSIZB + 1, "Enter key:", eflag ? VERIFY : 0)) { + fputs("password error\n", stderr); + EXIT(2); + } + + if (in == NULL) + DES_IN = stdin; + else if ((DES_IN = fopen(in, "r")) == NULL) { + perror("opening input file"); + EXIT(4); + } + + CKSUM_OUT = stdout; + if (out == NULL) { + DES_OUT = stdout; + CKSUM_OUT = stderr; + } else if ((DES_OUT = fopen(out, "w")) == NULL) { + perror("opening output file"); + EXIT(5); + } #ifdef OPENSSL_SYS_MSDOS - /* This should set the file to binary mode. */ - { -#include <fcntl.h> - if (!(uflag && dflag)) - setmode(fileno(DES_IN),O_BINARY); - if (!(uflag && eflag)) - setmode(fileno(DES_OUT),O_BINARY); - } + /* This should set the file to binary mode. */ + { +# include <fcntl.h> + if (!(uflag && dflag)) + setmode(fileno(DES_IN), O_BINARY); + if (!(uflag && eflag)) + setmode(fileno(DES_OUT), O_BINARY); + } #endif - doencryption(); - fclose(DES_IN); - fclose(DES_OUT); - EXIT(0); - } + doencryption(); + fclose(DES_IN); + fclose(DES_OUT); + EXIT(0); +} void usage(void) - { - char **u; - static const char *Usage[]={ -"des <options> [input-file [output-file]]", -"options:", -"-v : des(1) version number", -"-e : encrypt using SunOS compatible user key to DES key conversion.", -"-E : encrypt ", -"-d : decrypt using SunOS compatible user key to DES key conversion.", -"-D : decrypt ", -"-c[ckname] : generate a cbc_cksum using SunOS compatible user key to", -" DES key conversion and output to ckname (stdout default,", -" stderr if data being output on stdout). The checksum is", -" generated before encryption and after decryption if used", -" in conjunction with -[eEdD].", -"-C[ckname] : generate a cbc_cksum as for -c but compatible with -[ED].", -"-k key : use key 'key'", -"-h : the key that is entered will be a hexadecimal number", -" that is used directly as the des key", -"-u[uuname] : input file is uudecoded if -[dD] or output uuencoded data if -[eE]", -" (uuname is the filename to put in the uuencode header).", -"-b : encrypt using DES in ecb encryption mode, the default is cbc mode.", -"-3 : encrypt using triple DES encryption. This uses 2 keys", -" generated from the input key. If the input key is less", -" than 8 characters long, this is equivalent to normal", -" encryption. Default is triple cbc, -b makes it triple ecb.", -NULL -}; - for (u=(char **)Usage; *u; u++) - { - fputs(*u,stderr); - fputc('\n',stderr); - } - - EXIT(1); - } +{ + char **u; + static const char *Usage[] = { + "des <options> [input-file [output-file]]", + "options:", + "-v : des(1) version number", + "-e : encrypt using SunOS compatible user key to DES key conversion.", + "-E : encrypt ", + "-d : decrypt using SunOS compatible user key to DES key conversion.", + "-D : decrypt ", + "-c[ckname] : generate a cbc_cksum using SunOS compatible user key to", + " DES key conversion and output to ckname (stdout default,", + " stderr if data being output on stdout). The checksum is", + " generated before encryption and after decryption if used", + " in conjunction with -[eEdD].", + "-C[ckname] : generate a cbc_cksum as for -c but compatible with -[ED].", + "-k key : use key 'key'", + "-h : the key that is entered will be a hexadecimal number", + " that is used directly as the des key", + "-u[uuname] : input file is uudecoded if -[dD] or output uuencoded data if -[eE]", + " (uuname is the filename to put in the uuencode header).", + "-b : encrypt using DES in ecb encryption mode, the default is cbc mode.", + "-3 : encrypt using triple DES encryption. This uses 2 keys", + " generated from the input key. If the input key is less", + " than 8 characters long, this is equivalent to normal", + " encryption. Default is triple cbc, -b makes it triple ecb.", + NULL + }; + for (u = (char **)Usage; *u; u++) { + fputs(*u, stderr); + fputc('\n', stderr); + } + + EXIT(1); +} void doencryption(void) - { +{ #ifdef _LIBC - extern unsigned long time(); + extern unsigned long time(); #endif - register int i; - DES_key_schedule ks,ks2; - DES_cblock iv,iv2; - char *p; - int num=0,j,k,l,rem,ll,len,last,ex=0; - DES_cblock kk,k2; - FILE *O; - int Exit=0; + register int i; + DES_key_schedule ks, ks2; + DES_cblock iv, iv2; + char *p; + int num = 0, j, k, l, rem, ll, len, last, ex = 0; + DES_cblock kk, k2; + FILE *O; + int Exit = 0; #ifndef OPENSSL_SYS_MSDOS - static unsigned char buf[BUFSIZE+8],obuf[BUFSIZE+8]; + static unsigned char buf[BUFSIZE + 8], obuf[BUFSIZE + 8]; #else - static unsigned char *buf=NULL,*obuf=NULL; - - if (buf == NULL) - { - if ( (( buf=OPENSSL_malloc(BUFSIZE+8)) == NULL) || - ((obuf=OPENSSL_malloc(BUFSIZE+8)) == NULL)) - { - fputs("Not enough memory\n",stderr); - Exit=10; - goto problems; - } - } + static unsigned char *buf = NULL, *obuf = NULL; + + if (buf == NULL) { + if (((buf = OPENSSL_malloc(BUFSIZE + 8)) == NULL) || + ((obuf = OPENSSL_malloc(BUFSIZE + 8)) == NULL)) { + fputs("Not enough memory\n", stderr); + Exit = 10; + goto problems; + } + } #endif - if (hflag) - { - j=(flag3?16:8); - p=key; - for (i=0; i<j; i++) - { - k=0; - if ((*p <= '9') && (*p >= '0')) - k=(*p-'0')<<4; - else if ((*p <= 'f') && (*p >= 'a')) - k=(*p-'a'+10)<<4; - else if ((*p <= 'F') && (*p >= 'A')) - k=(*p-'A'+10)<<4; - else - { - fputs("Bad hex key\n",stderr); - Exit=9; - goto problems; - } - p++; - if ((*p <= '9') && (*p >= '0')) - k|=(*p-'0'); - else if ((*p <= 'f') && (*p >= 'a')) - k|=(*p-'a'+10); - else if ((*p <= 'F') && (*p >= 'A')) - k|=(*p-'A'+10); - else - { - fputs("Bad hex key\n",stderr); - Exit=9; - goto problems; - } - p++; - if (i < 8) - kk[i]=k; - else - k2[i-8]=k; - } - DES_set_key_unchecked(&k2,&ks2); - OPENSSL_cleanse(k2,sizeof(k2)); - } - else if (longk || flag3) - { - if (flag3) - { - DES_string_to_2keys(key,&kk,&k2); - DES_set_key_unchecked(&k2,&ks2); - OPENSSL_cleanse(k2,sizeof(k2)); - } - else - DES_string_to_key(key,&kk); - } - else - for (i=0; i<KEYSIZ; i++) - { - l=0; - k=key[i]; - for (j=0; j<8; j++) - { - if (k&1) l++; - k>>=1; - } - if (l & 1) - kk[i]=key[i]&0x7f; - else - kk[i]=key[i]|0x80; - } - - DES_set_key_unchecked(&kk,&ks); - OPENSSL_cleanse(key,sizeof(key)); - OPENSSL_cleanse(kk,sizeof(kk)); - /* woops - A bug that does not showup under unix :-( */ - memset(iv,0,sizeof(iv)); - memset(iv2,0,sizeof(iv2)); - - l=1; - rem=0; - /* first read */ - if (eflag || (!dflag && cflag)) - { - for (;;) - { - num=l=fread(&(buf[rem]),1,BUFSIZE,DES_IN); - l+=rem; - num+=rem; - if (l < 0) - { - perror("read error"); - Exit=6; - goto problems; - } - - rem=l%8; - len=l-rem; - if (feof(DES_IN)) - { - for (i=7-rem; i>0; i--) - RAND_pseudo_bytes(buf + l++, 1); - buf[l++]=rem; - ex=1; - len+=rem; - } - else - l-=rem; - - if (cflag) - { - DES_cbc_cksum(buf,&cksum, - (long)len,&ks,&cksum); - if (!eflag) - { - if (feof(DES_IN)) break; - else continue; - } - } - - if (bflag && !flag3) - for (i=0; i<l; i+=8) - DES_ecb_encrypt( - (DES_cblock *)&(buf[i]), - (DES_cblock *)&(obuf[i]), - &ks,do_encrypt); - else if (flag3 && bflag) - for (i=0; i<l; i+=8) - DES_ecb2_encrypt( - (DES_cblock *)&(buf[i]), - (DES_cblock *)&(obuf[i]), - &ks,&ks2,do_encrypt); - else if (flag3 && !bflag) - { - char tmpbuf[8]; - - if (rem) memcpy(tmpbuf,&(buf[l]), - (unsigned int)rem); - DES_3cbc_encrypt( - (DES_cblock *)buf,(DES_cblock *)obuf, - (long)l,ks,ks2,&iv, - &iv2,do_encrypt); - if (rem) memcpy(&(buf[l]),tmpbuf, - (unsigned int)rem); - } - else - { - DES_cbc_encrypt( - buf,obuf, - (long)l,&ks,&iv,do_encrypt); - if (l >= 8) memcpy(iv,&(obuf[l-8]),8); - } - if (rem) memcpy(buf,&(buf[l]),(unsigned int)rem); - - i=0; - while (i < l) - { - if (uflag) - j=uufwrite(obuf,1,(unsigned int)l-i, - DES_OUT); - else - j=fwrite(obuf,1,(unsigned int)l-i, - DES_OUT); - if (j == -1) - { - perror("Write error"); - Exit=7; - goto problems; - } - i+=j; - } - if (feof(DES_IN)) - { - if (uflag) uufwriteEnd(DES_OUT); - break; - } - } - } - else /* decrypt */ - { - ex=1; - for (;;) - { - if (ex) { - if (uflag) - l=uufread(buf,1,BUFSIZE,DES_IN); - else - l=fread(buf,1,BUFSIZE,DES_IN); - ex=0; - rem=l%8; - l-=rem; - } - if (l < 0) - { - perror("read error"); - Exit=6; - goto problems; - } - - if (bflag && !flag3) - for (i=0; i<l; i+=8) - DES_ecb_encrypt( - (DES_cblock *)&(buf[i]), - (DES_cblock *)&(obuf[i]), - &ks,do_encrypt); - else if (flag3 && bflag) - for (i=0; i<l; i+=8) - DES_ecb2_encrypt( - (DES_cblock *)&(buf[i]), - (DES_cblock *)&(obuf[i]), - &ks,&ks2,do_encrypt); - else if (flag3 && !bflag) - { - DES_3cbc_encrypt( - (DES_cblock *)buf,(DES_cblock *)obuf, - (long)l,ks,ks2,&iv, - &iv2,do_encrypt); - } - else - { - DES_cbc_encrypt( - buf,obuf, - (long)l,&ks,&iv,do_encrypt); - if (l >= 8) memcpy(iv,&(buf[l-8]),8); - } - - if (uflag) - ll=uufread(&(buf[rem]),1,BUFSIZE,DES_IN); - else - ll=fread(&(buf[rem]),1,BUFSIZE,DES_IN); - ll+=rem; - rem=ll%8; - ll-=rem; - if (feof(DES_IN) && (ll == 0)) - { - last=obuf[l-1]; - - if ((last > 7) || (last < 0)) - { - fputs("The file was not decrypted correctly.\n", - stderr); - Exit=8; - last=0; - } - l=l-8+last; - } - i=0; - if (cflag) DES_cbc_cksum(obuf, - (DES_cblock *)cksum,(long)l/8*8,&ks, - (DES_cblock *)cksum); - while (i != l) - { - j=fwrite(obuf,1,(unsigned int)l-i,DES_OUT); - if (j == -1) - { - perror("Write error"); - Exit=7; - goto problems; - } - i+=j; - } - l=ll; - if ((l == 0) && feof(DES_IN)) break; - } - } - if (cflag) - { - l=0; - if (cksumname[0] != '\0') - { - if ((O=fopen(cksumname,"w")) != NULL) - { - CKSUM_OUT=O; - l=1; - } - } - for (i=0; i<8; i++) - fprintf(CKSUM_OUT,"%02X",cksum[i]); - fprintf(CKSUM_OUT,"\n"); - if (l) fclose(CKSUM_OUT); - } -problems: - OPENSSL_cleanse(buf,sizeof(buf)); - OPENSSL_cleanse(obuf,sizeof(obuf)); - OPENSSL_cleanse(&ks,sizeof(ks)); - OPENSSL_cleanse(&ks2,sizeof(ks2)); - OPENSSL_cleanse(iv,sizeof(iv)); - OPENSSL_cleanse(iv2,sizeof(iv2)); - OPENSSL_cleanse(kk,sizeof(kk)); - OPENSSL_cleanse(k2,sizeof(k2)); - OPENSSL_cleanse(uubuf,sizeof(uubuf)); - OPENSSL_cleanse(b,sizeof(b)); - OPENSSL_cleanse(bb,sizeof(bb)); - OPENSSL_cleanse(cksum,sizeof(cksum)); - if (Exit) EXIT(Exit); - } + if (hflag) { + j = (flag3 ? 16 : 8); + p = key; + for (i = 0; i < j; i++) { + k = 0; + if ((*p <= '9') && (*p >= '0')) + k = (*p - '0') << 4; + else if ((*p <= 'f') && (*p >= 'a')) + k = (*p - 'a' + 10) << 4; + else if ((*p <= 'F') && (*p >= 'A')) + k = (*p - 'A' + 10) << 4; + else { + fputs("Bad hex key\n", stderr); + Exit = 9; + goto problems; + } + p++; + if ((*p <= '9') && (*p >= '0')) + k |= (*p - '0'); + else if ((*p <= 'f') && (*p >= 'a')) + k |= (*p - 'a' + 10); + else if ((*p <= 'F') && (*p >= 'A')) + k |= (*p - 'A' + 10); + else { + fputs("Bad hex key\n", stderr); + Exit = 9; + goto problems; + } + p++; + if (i < 8) + kk[i] = k; + else + k2[i - 8] = k; + } + DES_set_key_unchecked(&k2, &ks2); + OPENSSL_cleanse(k2, sizeof(k2)); + } else if (longk || flag3) { + if (flag3) { + DES_string_to_2keys(key, &kk, &k2); + DES_set_key_unchecked(&k2, &ks2); + OPENSSL_cleanse(k2, sizeof(k2)); + } else + DES_string_to_key(key, &kk); + } else + for (i = 0; i < KEYSIZ; i++) { + l = 0; + k = key[i]; + for (j = 0; j < 8; j++) { + if (k & 1) + l++; + k >>= 1; + } + if (l & 1) + kk[i] = key[i] & 0x7f; + else + kk[i] = key[i] | 0x80; + } + + DES_set_key_unchecked(&kk, &ks); + OPENSSL_cleanse(key, sizeof(key)); + OPENSSL_cleanse(kk, sizeof(kk)); + /* woops - A bug that does not showup under unix :-( */ + memset(iv, 0, sizeof(iv)); + memset(iv2, 0, sizeof(iv2)); + + l = 1; + rem = 0; + /* first read */ + if (eflag || (!dflag && cflag)) { + for (;;) { + num = l = fread(&(buf[rem]), 1, BUFSIZE, DES_IN); + l += rem; + num += rem; + if (l < 0) { + perror("read error"); + Exit = 6; + goto problems; + } + + rem = l % 8; + len = l - rem; + if (feof(DES_IN)) { + for (i = 7 - rem; i > 0; i--) + RAND_pseudo_bytes(buf + l++, 1); + buf[l++] = rem; + ex = 1; + len += rem; + } else + l -= rem; + + if (cflag) { + DES_cbc_cksum(buf, &cksum, (long)len, &ks, &cksum); + if (!eflag) { + if (feof(DES_IN)) + break; + else + continue; + } + } + + if (bflag && !flag3) + for (i = 0; i < l; i += 8) + DES_ecb_encrypt((DES_cblock *)&(buf[i]), + (DES_cblock *)&(obuf[i]), + &ks, do_encrypt); + else if (flag3 && bflag) + for (i = 0; i < l; i += 8) + DES_ecb2_encrypt((DES_cblock *)&(buf[i]), + (DES_cblock *)&(obuf[i]), + &ks, &ks2, do_encrypt); + else if (flag3 && !bflag) { + char tmpbuf[8]; + + if (rem) + memcpy(tmpbuf, &(buf[l]), (unsigned int)rem); + DES_3cbc_encrypt((DES_cblock *)buf, (DES_cblock *)obuf, + (long)l, ks, ks2, &iv, &iv2, do_encrypt); + if (rem) + memcpy(&(buf[l]), tmpbuf, (unsigned int)rem); + } else { + DES_cbc_encrypt(buf, obuf, (long)l, &ks, &iv, do_encrypt); + if (l >= 8) + memcpy(iv, &(obuf[l - 8]), 8); + } + if (rem) + memcpy(buf, &(buf[l]), (unsigned int)rem); + + i = 0; + while (i < l) { + if (uflag) + j = uufwrite(obuf, 1, (unsigned int)l - i, DES_OUT); + else + j = fwrite(obuf, 1, (unsigned int)l - i, DES_OUT); + if (j == -1) { + perror("Write error"); + Exit = 7; + goto problems; + } + i += j; + } + if (feof(DES_IN)) { + if (uflag) + uufwriteEnd(DES_OUT); + break; + } + } + } else { /* decrypt */ + + ex = 1; + for (;;) { + if (ex) { + if (uflag) + l = uufread(buf, 1, BUFSIZE, DES_IN); + else + l = fread(buf, 1, BUFSIZE, DES_IN); + ex = 0; + rem = l % 8; + l -= rem; + } + if (l < 0) { + perror("read error"); + Exit = 6; + goto problems; + } + + if (bflag && !flag3) + for (i = 0; i < l; i += 8) + DES_ecb_encrypt((DES_cblock *)&(buf[i]), + (DES_cblock *)&(obuf[i]), + &ks, do_encrypt); + else if (flag3 && bflag) + for (i = 0; i < l; i += 8) + DES_ecb2_encrypt((DES_cblock *)&(buf[i]), + (DES_cblock *)&(obuf[i]), + &ks, &ks2, do_encrypt); + else if (flag3 && !bflag) { + DES_3cbc_encrypt((DES_cblock *)buf, (DES_cblock *)obuf, + (long)l, ks, ks2, &iv, &iv2, do_encrypt); + } else { + DES_cbc_encrypt(buf, obuf, (long)l, &ks, &iv, do_encrypt); + if (l >= 8) + memcpy(iv, &(buf[l - 8]), 8); + } + + if (uflag) + ll = uufread(&(buf[rem]), 1, BUFSIZE, DES_IN); + else + ll = fread(&(buf[rem]), 1, BUFSIZE, DES_IN); + ll += rem; + rem = ll % 8; + ll -= rem; + if (feof(DES_IN) && (ll == 0)) { + last = obuf[l - 1]; + + if ((last > 7) || (last < 0)) { + fputs("The file was not decrypted correctly.\n", stderr); + Exit = 8; + last = 0; + } + l = l - 8 + last; + } + i = 0; + if (cflag) + DES_cbc_cksum(obuf, + (DES_cblock *)cksum, (long)l / 8 * 8, &ks, + (DES_cblock *)cksum); + while (i != l) { + j = fwrite(obuf, 1, (unsigned int)l - i, DES_OUT); + if (j == -1) { + perror("Write error"); + Exit = 7; + goto problems; + } + i += j; + } + l = ll; + if ((l == 0) && feof(DES_IN)) + break; + } + } + if (cflag) { + l = 0; + if (cksumname[0] != '\0') { + if ((O = fopen(cksumname, "w")) != NULL) { + CKSUM_OUT = O; + l = 1; + } + } + for (i = 0; i < 8; i++) + fprintf(CKSUM_OUT, "%02X", cksum[i]); + fprintf(CKSUM_OUT, "\n"); + if (l) + fclose(CKSUM_OUT); + } + problems: + OPENSSL_cleanse(buf, sizeof(buf)); + OPENSSL_cleanse(obuf, sizeof(obuf)); + OPENSSL_cleanse(&ks, sizeof(ks)); + OPENSSL_cleanse(&ks2, sizeof(ks2)); + OPENSSL_cleanse(iv, sizeof(iv)); + OPENSSL_cleanse(iv2, sizeof(iv2)); + OPENSSL_cleanse(kk, sizeof(kk)); + OPENSSL_cleanse(k2, sizeof(k2)); + OPENSSL_cleanse(uubuf, sizeof(uubuf)); + OPENSSL_cleanse(b, sizeof(b)); + OPENSSL_cleanse(bb, sizeof(bb)); + OPENSSL_cleanse(cksum, sizeof(cksum)); + if (Exit) + EXIT(Exit); +} /* We ignore this parameter but it should be > ~50 I believe */ int uufwrite(unsigned char *data, int size, unsigned int num, FILE *fp) - { - int i,j,left,rem,ret=num; - static int start=1; - - if (start) - { - fprintf(fp,"begin 600 %s\n", - (uuname[0] == '\0')?"text.d":uuname); - start=0; - } - - if (uubufnum) - { - if (uubufnum+num < 45) - { - memcpy(&(uubuf[uubufnum]),data,(unsigned int)num); - uubufnum+=num; - return(num); - } - else - { - i=45-uubufnum; - memcpy(&(uubuf[uubufnum]),data,(unsigned int)i); - j=uuencode((unsigned char *)uubuf,45,b); - fwrite(b,1,(unsigned int)j,fp); - uubufnum=0; - data+=i; - num-=i; - } - } - - for (i=0; i<(((int)num)-INUUBUFN); i+=INUUBUFN) - { - j=uuencode(&(data[i]),INUUBUFN,b); - fwrite(b,1,(unsigned int)j,fp); - } - rem=(num-i)%45; - left=(num-i-rem); - if (left) - { - j=uuencode(&(data[i]),left,b); - fwrite(b,1,(unsigned int)j,fp); - i+=left; - } - if (i != num) - { - memcpy(uubuf,&(data[i]),(unsigned int)rem); - uubufnum=rem; - } - return(ret); - } +{ + int i, j, left, rem, ret = num; + static int start = 1; + + if (start) { + fprintf(fp, "begin 600 %s\n", + (uuname[0] == '\0') ? "text.d" : uuname); + start = 0; + } + + if (uubufnum) { + if (uubufnum + num < 45) { + memcpy(&(uubuf[uubufnum]), data, (unsigned int)num); + uubufnum += num; + return (num); + } else { + i = 45 - uubufnum; + memcpy(&(uubuf[uubufnum]), data, (unsigned int)i); + j = uuencode((unsigned char *)uubuf, 45, b); + fwrite(b, 1, (unsigned int)j, fp); + uubufnum = 0; + data += i; + num -= i; + } + } + + for (i = 0; i < (((int)num) - INUUBUFN); i += INUUBUFN) { + j = uuencode(&(data[i]), INUUBUFN, b); + fwrite(b, 1, (unsigned int)j, fp); + } + rem = (num - i) % 45; + left = (num - i - rem); + if (left) { + j = uuencode(&(data[i]), left, b); + fwrite(b, 1, (unsigned int)j, fp); + i += left; + } + if (i != num) { + memcpy(uubuf, &(data[i]), (unsigned int)rem); + uubufnum = rem; + } + return (ret); +} void uufwriteEnd(FILE *fp) - { - int j; - static const char *end=" \nend\n"; - - if (uubufnum != 0) - { - uubuf[uubufnum]='\0'; - uubuf[uubufnum+1]='\0'; - uubuf[uubufnum+2]='\0'; - j=uuencode(uubuf,uubufnum,b); - fwrite(b,1,(unsigned int)j,fp); - } - fwrite(end,1,strlen(end),fp); - } - -/* int size: should always be > ~ 60; I actually ignore this parameter :-) */ +{ + int j; + static const char *end = " \nend\n"; + + if (uubufnum != 0) { + uubuf[uubufnum] = '\0'; + uubuf[uubufnum + 1] = '\0'; + uubuf[uubufnum + 2] = '\0'; + j = uuencode(uubuf, uubufnum, b); + fwrite(b, 1, (unsigned int)j, fp); + } + fwrite(end, 1, strlen(end), fp); +} + +/* + * int size: should always be > ~ 60; I actually ignore this parameter :-) + */ int uufread(unsigned char *out, int size, unsigned int num, FILE *fp) - { - int i,j,tot; - static int done=0; - static int valid=0; - static int start=1; - - if (start) - { - for (;;) - { - b[0]='\0'; - fgets((char *)b,300,fp); - if (b[0] == '\0') - { - fprintf(stderr,"no 'begin' found in uuencoded input\n"); - return(-1); - } - if (strncmp((char *)b,"begin ",6) == 0) break; - } - start=0; - } - if (done) return(0); - tot=0; - if (valid) - { - memcpy(out,bb,(unsigned int)valid); - tot=valid; - valid=0; - } - for (;;) - { - b[0]='\0'; - fgets((char *)b,300,fp); - if (b[0] == '\0') break; - i=strlen((char *)b); - if ((b[0] == 'e') && (b[1] == 'n') && (b[2] == 'd')) - { - done=1; - while (!feof(fp)) - { - fgets((char *)b,300,fp); - } - break; - } - i=uudecode(b,i,bb); - if (i < 0) break; - if ((i+tot+8) > num) - { - /* num to copy to make it a multiple of 8 */ - j=(num/8*8)-tot-8; - memcpy(&(out[tot]),bb,(unsigned int)j); - tot+=j; - memcpy(bb,&(bb[j]),(unsigned int)i-j); - valid=i-j; - break; - } - memcpy(&(out[tot]),bb,(unsigned int)i); - tot+=i; - } - return(tot); - } +{ + int i, j, tot; + static int done = 0; + static int valid = 0; + static int start = 1; + + if (start) { + for (;;) { + b[0] = '\0'; + fgets((char *)b, 300, fp); + if (b[0] == '\0') { + fprintf(stderr, "no 'begin' found in uuencoded input\n"); + return (-1); + } + if (strncmp((char *)b, "begin ", 6) == 0) + break; + } + start = 0; + } + if (done) + return (0); + tot = 0; + if (valid) { + memcpy(out, bb, (unsigned int)valid); + tot = valid; + valid = 0; + } + for (;;) { + b[0] = '\0'; + fgets((char *)b, 300, fp); + if (b[0] == '\0') + break; + i = strlen((char *)b); + if ((b[0] == 'e') && (b[1] == 'n') && (b[2] == 'd')) { + done = 1; + while (!feof(fp)) { + fgets((char *)b, 300, fp); + } + break; + } + i = uudecode(b, i, bb); + if (i < 0) + break; + if ((i + tot + 8) > num) { + /* num to copy to make it a multiple of 8 */ + j = (num / 8 * 8) - tot - 8; + memcpy(&(out[tot]), bb, (unsigned int)j); + tot += j; + memcpy(bb, &(bb[j]), (unsigned int)i - j); + valid = i - j; + break; + } + memcpy(&(out[tot]), bb, (unsigned int)i); + tot += i; + } + return (tot); +} #define ccc2l(c,l) (l =((DES_LONG)(*((c)++)))<<16, \ - l|=((DES_LONG)(*((c)++)))<< 8, \ - l|=((DES_LONG)(*((c)++)))) + l|=((DES_LONG)(*((c)++)))<< 8, \ + l|=((DES_LONG)(*((c)++)))) #define l2ccc(l,c) (*((c)++)=(unsigned char)(((l)>>16)&0xff), \ *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ *((c)++)=(unsigned char)(((l) )&0xff)) - int uuencode(unsigned char *in, int num, unsigned char *out) - { - int j,i,n,tot=0; - DES_LONG l; - register unsigned char *p; - p=out; - - for (j=0; j<num; j+=45) - { - if (j+45 > num) - i=(num-j); - else i=45; - *(p++)=i+' '; - for (n=0; n<i; n+=3) - { - ccc2l(in,l); - *(p++)=((l>>18)&0x3f)+' '; - *(p++)=((l>>12)&0x3f)+' '; - *(p++)=((l>> 6)&0x3f)+' '; - *(p++)=((l )&0x3f)+' '; - tot+=4; - } - *(p++)='\n'; - tot+=2; - } - *p='\0'; - l=0; - return(tot); - } +{ + int j, i, n, tot = 0; + DES_LONG l; + register unsigned char *p; + p = out; + + for (j = 0; j < num; j += 45) { + if (j + 45 > num) + i = (num - j); + else + i = 45; + *(p++) = i + ' '; + for (n = 0; n < i; n += 3) { + ccc2l(in, l); + *(p++) = ((l >> 18) & 0x3f) + ' '; + *(p++) = ((l >> 12) & 0x3f) + ' '; + *(p++) = ((l >> 6) & 0x3f) + ' '; + *(p++) = ((l) & 0x3f) + ' '; + tot += 4; + } + *(p++) = '\n'; + tot += 2; + } + *p = '\0'; + l = 0; + return (tot); +} int uudecode(unsigned char *in, int num, unsigned char *out) - { - int j,i,k; - unsigned int n=0,space=0; - DES_LONG l; - DES_LONG w,x,y,z; - unsigned int blank=(unsigned int)'\n'-' '; - - for (j=0; j<num; ) - { - n= *(in++)-' '; - if (n == blank) - { - n=0; - in--; - } - if (n > 60) - { - fprintf(stderr,"uuencoded line length too long\n"); - return(-1); - } - j++; - - for (i=0; i<n; j+=4,i+=3) - { - /* the following is for cases where spaces are - * removed from lines. - */ - if (space) - { - w=x=y=z=0; - } - else - { - w= *(in++)-' '; - x= *(in++)-' '; - y= *(in++)-' '; - z= *(in++)-' '; - } - if ((w > 63) || (x > 63) || (y > 63) || (z > 63)) - { - k=0; - if (w == blank) k=1; - if (x == blank) k=2; - if (y == blank) k=3; - if (z == blank) k=4; - space=1; - switch (k) { - case 1: w=0; in--; - case 2: x=0; in--; - case 3: y=0; in--; - case 4: z=0; in--; - break; - case 0: - space=0; - fprintf(stderr,"bad uuencoded data values\n"); - w=x=y=z=0; - return(-1); - break; - } - } - l=(w<<18)|(x<<12)|(y<< 6)|(z ); - l2ccc(l,out); - } - if (*(in++) != '\n') - { - fprintf(stderr,"missing nl in uuencoded line\n"); - w=x=y=z=0; - return(-1); - } - j++; - } - *out='\0'; - w=x=y=z=0; - return(n); - } +{ + int j, i, k; + unsigned int n = 0, space = 0; + DES_LONG l; + DES_LONG w, x, y, z; + unsigned int blank = (unsigned int)'\n' - ' '; + + for (j = 0; j < num;) { + n = *(in++) - ' '; + if (n == blank) { + n = 0; + in--; + } + if (n > 60) { + fprintf(stderr, "uuencoded line length too long\n"); + return (-1); + } + j++; + + for (i = 0; i < n; j += 4, i += 3) { + /* + * the following is for cases where spaces are removed from + * lines. + */ + if (space) { + w = x = y = z = 0; + } else { + w = *(in++) - ' '; + x = *(in++) - ' '; + y = *(in++) - ' '; + z = *(in++) - ' '; + } + if ((w > 63) || (x > 63) || (y > 63) || (z > 63)) { + k = 0; + if (w == blank) + k = 1; + if (x == blank) + k = 2; + if (y == blank) + k = 3; + if (z == blank) + k = 4; + space = 1; + switch (k) { + case 1: + w = 0; + in--; + case 2: + x = 0; + in--; + case 3: + y = 0; + in--; + case 4: + z = 0; + in--; + break; + case 0: + space = 0; + fprintf(stderr, "bad uuencoded data values\n"); + w = x = y = z = 0; + return (-1); + break; + } + } + l = (w << 18) | (x << 12) | (y << 6) | (z); + l2ccc(l, out); + } + if (*(in++) != '\n') { + fprintf(stderr, "missing nl in uuencoded line\n"); + w = x = y = z = 0; + return (-1); + } + j++; + } + *out = '\0'; + w = x = y = z = 0; + return (n); +} |