1/* NOCW */ 2#include <stdio.h> 3#ifdef _OSD_POSIX 4#ifndef CHARSET_EBCDIC 5#define CHARSET_EBCDIC 1 6#endif 7#endif 8#ifdef CHARSET_EBCDIC 9#include <openssl/ebcdic.h> 10#endif 11 12/* This version of crypt has been developed from my MIT compatible 13 * DES library. 14 * Eric Young (eay@cryptsoft.com) 15 */ 16 17/* Modification by Jens Kupferschmidt (Cu) 18 * I have included directive PARA for shared memory computers. 19 * I have included a directive LONGCRYPT to using this routine to cipher 20 * passwords with more then 8 bytes like HP-UX 10.x it used. The MAXPLEN 21 * definition is the maximum of length of password and can changed. I have 22 * defined 24. 23 */ 24 25#include "des_locl.h" 26 27/* Added more values to handle illegal salt values the way normal 28 * crypt() implementations do. The patch was sent by 29 * Bjorn Gronvall <bg@sics.se> 30 */ 31static unsigned const char con_salt[128]={ 320xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9, 330xDA,0xDB,0xDC,0xDD,0xDE,0xDF,0xE0,0xE1, 340xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9, 350xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1, 360xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9, 370xFA,0xFB,0xFC,0xFD,0xFE,0xFF,0x00,0x01, 380x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09, 390x0A,0x0B,0x05,0x06,0x07,0x08,0x09,0x0A, 400x0B,0x0C,0x0D,0x0E,0x0F,0x10,0x11,0x12, 410x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A, 420x1B,0x1C,0x1D,0x1E,0x1F,0x20,0x21,0x22, 430x23,0x24,0x25,0x20,0x21,0x22,0x23,0x24, 440x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C, 450x2D,0x2E,0x2F,0x30,0x31,0x32,0x33,0x34, 460x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C, 470x3D,0x3E,0x3F,0x40,0x41,0x42,0x43,0x44, 48}; 49 50static unsigned const char cov_2char[64]={ 510x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35, 520x36,0x37,0x38,0x39,0x41,0x42,0x43,0x44, 530x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C, 540x4D,0x4E,0x4F,0x50,0x51,0x52,0x53,0x54, 550x55,0x56,0x57,0x58,0x59,0x5A,0x61,0x62, 560x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A, 570x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72, 580x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A 59}; 60 61void fcrypt_body(DES_LONG *out,DES_key_schedule *ks, 62 DES_LONG Eswap0, DES_LONG Eswap1); 63 64char *DES_crypt(const char *buf, const char *salt) 65 { 66 static char buff[14]; 67 68#ifndef CHARSET_EBCDIC 69 return(DES_fcrypt(buf,salt,buff)); 70#else 71 char e_salt[2+1]; 72 char e_buf[32+1]; /* replace 32 by 8 ? */ 73 char *ret; 74 75 /* Copy at most 2 chars of salt */ 76 if ((e_salt[0] = salt[0]) != '\0') 77 e_salt[1] = salt[1]; 78 79 /* Copy at most 32 chars of password */ 80 strncpy (e_buf, buf, sizeof(e_buf)); 81 82 /* Make sure we have a delimiter */ 83 e_salt[sizeof(e_salt)-1] = e_buf[sizeof(e_buf)-1] = '\0'; 84 85 /* Convert the e_salt to ASCII, as that's what DES_fcrypt works on */ 86 ebcdic2ascii(e_salt, e_salt, sizeof e_salt); 87 88 /* Convert the cleartext password to ASCII */ 89 ebcdic2ascii(e_buf, e_buf, sizeof e_buf); 90 91 /* Encrypt it (from/to ASCII) */ 92 ret = DES_fcrypt(e_buf,e_salt,buff); 93 94 /* Convert the result back to EBCDIC */ 95 ascii2ebcdic(ret, ret, strlen(ret)); 96 97 return ret; 98#endif 99 } 100 101 102char *DES_fcrypt(const char *buf, const char *salt, char *ret) 103 { 104 unsigned int i,j,x,y; 105 DES_LONG Eswap0,Eswap1; 106 DES_LONG out[2],ll; 107 DES_cblock key; 108 DES_key_schedule ks; 109 unsigned char bb[9]; 110 unsigned char *b=bb; 111 unsigned char c,u; 112 113 /* eay 25/08/92 114 * If you call crypt("pwd","*") as often happens when you 115 * have * as the pwd field in /etc/passwd, the function 116 * returns *\0XXXXXXXXX 117 * The \0 makes the string look like * so the pwd "*" would 118 * crypt to "*". This was found when replacing the crypt in 119 * our shared libraries. People found that the disabled 120 * accounts effectively had no passwd :-(. */ 121#ifndef CHARSET_EBCDIC 122 x=ret[0]=((salt[0] == '\0')?'A':salt[0]); 123 Eswap0=con_salt[x]<<2; 124 x=ret[1]=((salt[1] == '\0')?'A':salt[1]); 125 Eswap1=con_salt[x]<<6; 126#else 127 x=ret[0]=((salt[0] == '\0')?os_toascii['A']:salt[0]); 128 Eswap0=con_salt[x]<<2; 129 x=ret[1]=((salt[1] == '\0')?os_toascii['A']:salt[1]); 130 Eswap1=con_salt[x]<<6; 131#endif 132 133/* EAY 134r=strlen(buf); 135r=(r+7)/8; 136*/ 137 for (i=0; i<8; i++) 138 { 139 c= *(buf++); 140 if (!c) break; 141 key[i]=(c<<1); 142 } 143 for (; i<8; i++) 144 key[i]=0; 145 146 DES_set_key_unchecked(&key,&ks); 147 fcrypt_body(&(out[0]),&ks,Eswap0,Eswap1); 148 149 ll=out[0]; l2c(ll,b); 150 ll=out[1]; l2c(ll,b); 151 y=0; 152 u=0x80; 153 bb[8]=0; 154 for (i=2; i<13; i++) 155 { 156 c=0; 157 for (j=0; j<6; j++) 158 { 159 c<<=1; 160 if (bb[y] & u) c|=1; 161 u>>=1; 162 if (!u) 163 { 164 y++; 165 u=0x80; 166 } 167 } 168 ret[i]=cov_2char[c]; 169 } 170 ret[13]='\0'; 171 return(ret); 172 } 173 174