155714Skris/* NOCW */ 255714Skris#include <stdio.h> 355714Skris#ifdef _OSD_POSIX 455714Skris#ifndef CHARSET_EBCDIC 555714Skris#define CHARSET_EBCDIC 1 655714Skris#endif 755714Skris#endif 855714Skris#ifdef CHARSET_EBCDIC 955714Skris#include <openssl/ebcdic.h> 1055714Skris#endif 1155714Skris 1259191Skris/* This version of crypt has been developed from my MIT compatible 1355714Skris * DES library. 1455714Skris * Eric Young (eay@cryptsoft.com) 1555714Skris */ 1655714Skris 1755714Skris/* Modification by Jens Kupferschmidt (Cu) 1855714Skris * I have included directive PARA for shared memory computers. 1955714Skris * I have included a directive LONGCRYPT to using this routine to cipher 2055714Skris * passwords with more then 8 bytes like HP-UX 10.x it used. The MAXPLEN 2159191Skris * definition is the maximum of length of password and can changed. I have 2255714Skris * defined 24. 2355714Skris */ 2455714Skris 2555714Skris#include "des_locl.h" 2655714Skris 2755714Skris/* Added more values to handle illegal salt values the way normal 2855714Skris * crypt() implementations do. The patch was sent by 2955714Skris * Bjorn Gronvall <bg@sics.se> 3055714Skris */ 3155714Skrisstatic unsigned const char con_salt[128]={ 3255714Skris0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9, 3355714Skris0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,0xE0,0xE1, 3455714Skris0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9, 3555714Skris0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1, 3655714Skris0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9, 3755714Skris0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,0x00,0x01, 3855714Skris0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09, 3955714Skris0x0A,0x0B,0x05,0x06,0x07,0x08,0x09,0x0A, 4055714Skris0x0B,0x0C,0x0D,0x0E,0x0F,0x10,0x11,0x12, 4155714Skris0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A, 4255714Skris0x1B,0x1C,0x1D,0x1E,0x1F,0x20,0x21,0x22, 4355714Skris0x23,0x24,0x25,0x20,0x21,0x22,0x23,0x24, 4455714Skris0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C, 4555714Skris0x2D,0x2E,0x2F,0x30,0x31,0x32,0x33,0x34, 4655714Skris0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C, 4755714Skris0x3D,0x3E,0x3F,0x40,0x41,0x42,0x43,0x44, 4855714Skris}; 4955714Skris 5055714Skrisstatic unsigned const char cov_2char[64]={ 5155714Skris0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35, 5255714Skris0x36,0x37,0x38,0x39,0x41,0x42,0x43,0x44, 5355714Skris0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C, 5455714Skris0x4D,0x4E,0x4F,0x50,0x51,0x52,0x53,0x54, 5555714Skris0x55,0x56,0x57,0x58,0x59,0x5A,0x61,0x62, 5655714Skris0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A, 5755714Skris0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72, 5855714Skris0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A 5955714Skris}; 6055714Skris 61109998Smarkmchar *DES_crypt(const char *buf, const char *salt) 6255714Skris { 6355714Skris static char buff[14]; 6455714Skris 6555714Skris#ifndef CHARSET_EBCDIC 66109998Smarkm return(DES_fcrypt(buf,salt,buff)); 6755714Skris#else 6855714Skris char e_salt[2+1]; 6955714Skris char e_buf[32+1]; /* replace 32 by 8 ? */ 7055714Skris char *ret; 7155714Skris 7255714Skris /* Copy at most 2 chars of salt */ 7355714Skris if ((e_salt[0] = salt[0]) != '\0') 7455714Skris e_salt[1] = salt[1]; 7555714Skris 7655714Skris /* Copy at most 32 chars of password */ 7755714Skris strncpy (e_buf, buf, sizeof(e_buf)); 7855714Skris 7955714Skris /* Make sure we have a delimiter */ 8055714Skris e_salt[sizeof(e_salt)-1] = e_buf[sizeof(e_buf)-1] = '\0'; 8155714Skris 82109998Smarkm /* Convert the e_salt to ASCII, as that's what DES_fcrypt works on */ 8355714Skris ebcdic2ascii(e_salt, e_salt, sizeof e_salt); 8455714Skris 8555714Skris /* Convert the cleartext password to ASCII */ 8655714Skris ebcdic2ascii(e_buf, e_buf, sizeof e_buf); 8755714Skris 8855714Skris /* Encrypt it (from/to ASCII) */ 89109998Smarkm ret = DES_fcrypt(e_buf,e_salt,buff); 9055714Skris 9155714Skris /* Convert the result back to EBCDIC */ 9255714Skris ascii2ebcdic(ret, ret, strlen(ret)); 9355714Skris 9455714Skris return ret; 9555714Skris#endif 9655714Skris } 9755714Skris 9855714Skris 99109998Smarkmchar *DES_fcrypt(const char *buf, const char *salt, char *ret) 10055714Skris { 10155714Skris unsigned int i,j,x,y; 10255714Skris DES_LONG Eswap0,Eswap1; 10355714Skris DES_LONG out[2],ll; 104109998Smarkm DES_cblock key; 105109998Smarkm DES_key_schedule ks; 10655714Skris unsigned char bb[9]; 10755714Skris unsigned char *b=bb; 10855714Skris unsigned char c,u; 10955714Skris 11055714Skris /* eay 25/08/92 11155714Skris * If you call crypt("pwd","*") as often happens when you 11255714Skris * have * as the pwd field in /etc/passwd, the function 11355714Skris * returns *\0XXXXXXXXX 11455714Skris * The \0 makes the string look like * so the pwd "*" would 11555714Skris * crypt to "*". This was found when replacing the crypt in 11659191Skris * our shared libraries. People found that the disabled 11759191Skris * accounts effectively had no passwd :-(. */ 11855714Skris#ifndef CHARSET_EBCDIC 11955714Skris x=ret[0]=((salt[0] == '\0')?'A':salt[0]); 12055714Skris Eswap0=con_salt[x]<<2; 12155714Skris x=ret[1]=((salt[1] == '\0')?'A':salt[1]); 12255714Skris Eswap1=con_salt[x]<<6; 12355714Skris#else 12455714Skris x=ret[0]=((salt[0] == '\0')?os_toascii['A']:salt[0]); 12555714Skris Eswap0=con_salt[x]<<2; 12655714Skris x=ret[1]=((salt[1] == '\0')?os_toascii['A']:salt[1]); 12755714Skris Eswap1=con_salt[x]<<6; 12855714Skris#endif 12955714Skris 13055714Skris/* EAY 13155714Skrisr=strlen(buf); 13255714Skrisr=(r+7)/8; 13355714Skris*/ 13455714Skris for (i=0; i<8; i++) 13555714Skris { 13655714Skris c= *(buf++); 13755714Skris if (!c) break; 13855714Skris key[i]=(c<<1); 13955714Skris } 14055714Skris for (; i<8; i++) 14155714Skris key[i]=0; 14255714Skris 143109998Smarkm DES_set_key_unchecked(&key,&ks); 144109998Smarkm fcrypt_body(&(out[0]),&ks,Eswap0,Eswap1); 14555714Skris 14655714Skris ll=out[0]; l2c(ll,b); 14755714Skris ll=out[1]; l2c(ll,b); 14855714Skris y=0; 14955714Skris u=0x80; 15055714Skris bb[8]=0; 15155714Skris for (i=2; i<13; i++) 15255714Skris { 15355714Skris c=0; 15455714Skris for (j=0; j<6; j++) 15555714Skris { 15655714Skris c<<=1; 15755714Skris if (bb[y] & u) c|=1; 15855714Skris u>>=1; 15955714Skris if (!u) 16055714Skris { 16155714Skris y++; 16255714Skris u=0x80; 16355714Skris } 16455714Skris } 16555714Skris ret[i]=cov_2char[c]; 16655714Skris } 16755714Skris ret[13]='\0'; 16855714Skris return(ret); 16955714Skris } 17055714Skris 171