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c2e4f17c1a
libdes (which is still used out there) or other des implementations, the OpenSSL DES functions are renamed to begin with DES_ instead of des_. Compatibility routines are provided and declared by including openssl/des_old.h. Those declarations are the same as were in des.h when the OpenSSL project started, which is exactly how libdes looked at that time, and hopefully still looks today. The compatibility functions will be removed in some future release, at the latest in version 1.0.
174 lines
4.2 KiB
C
174 lines
4.2 KiB
C
/* NOCW */
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#include <stdio.h>
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#ifdef _OSD_POSIX
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#ifndef CHARSET_EBCDIC
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#define CHARSET_EBCDIC 1
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#endif
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#endif
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#ifdef CHARSET_EBCDIC
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#include <openssl/ebcdic.h>
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#endif
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/* This version of crypt has been developed from my MIT compatible
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* DES library.
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* Eric Young (eay@cryptsoft.com)
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*/
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/* Modification by Jens Kupferschmidt (Cu)
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* I have included directive PARA for shared memory computers.
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* I have included a directive LONGCRYPT to using this routine to cipher
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* passwords with more then 8 bytes like HP-UX 10.x it used. The MAXPLEN
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* definition is the maximum of length of password and can changed. I have
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* defined 24.
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*/
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#include "des_locl.h"
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/* Added more values to handle illegal salt values the way normal
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* crypt() implementations do. The patch was sent by
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* Bjorn Gronvall <bg@sics.se>
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*/
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static unsigned const char con_salt[128]={
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0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9,
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0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,0xE0,0xE1,
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0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,
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0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1,
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0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,
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0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,0x00,0x01,
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0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,
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0x0A,0x0B,0x05,0x06,0x07,0x08,0x09,0x0A,
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0x0B,0x0C,0x0D,0x0E,0x0F,0x10,0x11,0x12,
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0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A,
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0x1B,0x1C,0x1D,0x1E,0x1F,0x20,0x21,0x22,
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0x23,0x24,0x25,0x20,0x21,0x22,0x23,0x24,
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0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C,
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0x2D,0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,
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0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C,
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0x3D,0x3E,0x3F,0x40,0x41,0x42,0x43,0x44,
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};
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static unsigned const char cov_2char[64]={
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0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35,
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0x36,0x37,0x38,0x39,0x41,0x42,0x43,0x44,
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0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C,
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0x4D,0x4E,0x4F,0x50,0x51,0x52,0x53,0x54,
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0x55,0x56,0x57,0x58,0x59,0x5A,0x61,0x62,
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0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A,
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0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72,
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0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A
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};
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void fcrypt_body(DES_LONG *out,DES_key_schedule *ks,
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DES_LONG Eswap0, DES_LONG Eswap1);
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char *DES_crypt(const char *buf, const char *salt)
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{
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static char buff[14];
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#ifndef CHARSET_EBCDIC
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return(DES_fcrypt(buf,salt,buff));
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#else
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char e_salt[2+1];
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char e_buf[32+1]; /* replace 32 by 8 ? */
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char *ret;
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/* Copy at most 2 chars of salt */
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if ((e_salt[0] = salt[0]) != '\0')
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e_salt[1] = salt[1];
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/* Copy at most 32 chars of password */
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strncpy (e_buf, buf, sizeof(e_buf));
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/* Make sure we have a delimiter */
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e_salt[sizeof(e_salt)-1] = e_buf[sizeof(e_buf)-1] = '\0';
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/* Convert the e_salt to ASCII, as that's what DES_fcrypt works on */
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ebcdic2ascii(e_salt, e_salt, sizeof e_salt);
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/* Convert the cleartext password to ASCII */
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ebcdic2ascii(e_buf, e_buf, sizeof e_buf);
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/* Encrypt it (from/to ASCII) */
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ret = DES_fcrypt(e_buf,e_salt,buff);
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/* Convert the result back to EBCDIC */
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ascii2ebcdic(ret, ret, strlen(ret));
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return ret;
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#endif
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}
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char *DES_fcrypt(const char *buf, const char *salt, char *ret)
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{
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unsigned int i,j,x,y;
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DES_LONG Eswap0,Eswap1;
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DES_LONG out[2],ll;
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DES_cblock key;
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DES_key_schedule ks;
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unsigned char bb[9];
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unsigned char *b=bb;
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unsigned char c,u;
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/* eay 25/08/92
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* If you call crypt("pwd","*") as often happens when you
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* have * as the pwd field in /etc/passwd, the function
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* returns *\0XXXXXXXXX
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* The \0 makes the string look like * so the pwd "*" would
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* crypt to "*". This was found when replacing the crypt in
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* our shared libraries. People found that the disabled
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* accounts effectively had no passwd :-(. */
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#ifndef CHARSET_EBCDIC
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x=ret[0]=((salt[0] == '\0')?'A':salt[0]);
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Eswap0=con_salt[x]<<2;
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x=ret[1]=((salt[1] == '\0')?'A':salt[1]);
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Eswap1=con_salt[x]<<6;
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#else
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x=ret[0]=((salt[0] == '\0')?os_toascii['A']:salt[0]);
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Eswap0=con_salt[x]<<2;
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x=ret[1]=((salt[1] == '\0')?os_toascii['A']:salt[1]);
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Eswap1=con_salt[x]<<6;
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#endif
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/* EAY
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r=strlen(buf);
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r=(r+7)/8;
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*/
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for (i=0; i<8; i++)
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{
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c= *(buf++);
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if (!c) break;
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key[i]=(c<<1);
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}
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for (; i<8; i++)
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key[i]=0;
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DES_set_key_unchecked(&key,&ks);
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fcrypt_body(&(out[0]),&ks,Eswap0,Eswap1);
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ll=out[0]; l2c(ll,b);
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ll=out[1]; l2c(ll,b);
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y=0;
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u=0x80;
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bb[8]=0;
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for (i=2; i<13; i++)
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{
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c=0;
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for (j=0; j<6; j++)
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{
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c<<=1;
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if (bb[y] & u) c|=1;
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u>>=1;
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if (!u)
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{
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y++;
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u=0x80;
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}
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}
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ret[i]=cov_2char[c];
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}
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ret[13]='\0';
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return(ret);
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}
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