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 (at) 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 (at) sics.se> 30 */ 31 static unsigned const char con_salt[128]={ 32 0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9, 33 0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,0xE0,0xE1, 34 0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9, 35 0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1, 36 0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9, 37 0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,0x00,0x01, 38 0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09, 39 0x0A,0x0B,0x05,0x06,0x07,0x08,0x09,0x0A, 40 0x0B,0x0C,0x0D,0x0E,0x0F,0x10,0x11,0x12, 41 0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A, 42 0x1B,0x1C,0x1D,0x1E,0x1F,0x20,0x21,0x22, 43 0x23,0x24,0x25,0x20,0x21,0x22,0x23,0x24, 44 0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C, 45 0x2D,0x2E,0x2F,0x30,0x31,0x32,0x33,0x34, 46 0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C, 47 0x3D,0x3E,0x3F,0x40,0x41,0x42,0x43,0x44, 48 }; 49 50 static unsigned const char cov_2char[64]={ 51 0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35, 52 0x36,0x37,0x38,0x39,0x41,0x42,0x43,0x44, 53 0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C, 54 0x4D,0x4E,0x4F,0x50,0x51,0x52,0x53,0x54, 55 0x55,0x56,0x57,0x58,0x59,0x5A,0x61,0x62, 56 0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A, 57 0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72, 58 0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A 59 }; 60 61 char *DES_crypt(const char *buf, const char *salt) 62 { 63 static char buff[14]; 64 65 #ifndef CHARSET_EBCDIC 66 return(DES_fcrypt(buf,salt,buff)); 67 #else 68 char e_salt[2+1]; 69 char e_buf[32+1]; /* replace 32 by 8 ? */ 70 char *ret; 71 72 /* Copy at most 2 chars of salt */ 73 if ((e_salt[0] = salt[0]) != '\0') 74 e_salt[1] = salt[1]; 75 76 /* Copy at most 32 chars of password */ 77 strncpy (e_buf, buf, sizeof(e_buf)); 78 79 /* Make sure we have a delimiter */ 80 e_salt[sizeof(e_salt)-1] = e_buf[sizeof(e_buf)-1] = '\0'; 81 82 /* Convert the e_salt to ASCII, as that's what DES_fcrypt works on */ 83 ebcdic2ascii(e_salt, e_salt, sizeof e_salt); 84 85 /* Convert the cleartext password to ASCII */ 86 ebcdic2ascii(e_buf, e_buf, sizeof e_buf); 87 88 /* Encrypt it (from/to ASCII) */ 89 ret = DES_fcrypt(e_buf,e_salt,buff); 90 91 /* Convert the result back to EBCDIC */ 92 ascii2ebcdic(ret, ret, strlen(ret)); 93 94 return ret; 95 #endif 96 } 97 98 99 char *DES_fcrypt(const char *buf, const char *salt, char *ret) 100 { 101 unsigned int i,j,x,y; 102 DES_LONG Eswap0,Eswap1; 103 DES_LONG out[2],ll; 104 DES_cblock key; 105 DES_key_schedule ks; 106 unsigned char bb[9]; 107 unsigned char *b=bb; 108 unsigned char c,u; 109 110 /* eay 25/08/92 111 * If you call crypt("pwd","*") as often happens when you 112 * have * as the pwd field in /etc/passwd, the function 113 * returns *\0XXXXXXXXX 114 * The \0 makes the string look like * so the pwd "*" would 115 * crypt to "*". This was found when replacing the crypt in 116 * our shared libraries. People found that the disabled 117 * accounts effectively had no passwd :-(. */ 118 #ifndef CHARSET_EBCDIC 119 x=ret[0]=((salt[0] == '\0')?'A':salt[0]); 120 Eswap0=con_salt[x]<<2; 121 x=ret[1]=((salt[1] == '\0')?'A':salt[1]); 122 Eswap1=con_salt[x]<<6; 123 #else 124 x=ret[0]=((salt[0] == '\0')?os_toascii['A']:salt[0]); 125 Eswap0=con_salt[x]<<2; 126 x=ret[1]=((salt[1] == '\0')?os_toascii['A']:salt[1]); 127 Eswap1=con_salt[x]<<6; 128 #endif 129 130 /* EAY 131 r=strlen(buf); 132 r=(r+7)/8; 133 */ 134 for (i=0; i<8; i++) 135 { 136 c= *(buf++); 137 if (!c) break; 138 key[i]=(c<<1); 139 } 140 for (; i<8; i++) 141 key[i]=0; 142 143 DES_set_key_unchecked(&key,&ks); 144 fcrypt_body(&(out[0]),&ks,Eswap0,Eswap1); 145 146 ll=out[0]; l2c(ll,b); 147 ll=out[1]; l2c(ll,b); 148 y=0; 149 u=0x80; 150 bb[8]=0; 151 for (i=2; i<13; i++) 152 { 153 c=0; 154 for (j=0; j<6; j++) 155 { 156 c<<=1; 157 if (bb[y] & u) c|=1; 158 u>>=1; 159 if (!u) 160 { 161 y++; 162 u=0x80; 163 } 164 } 165 ret[i]=cov_2char[c]; 166 } 167 ret[13]='\0'; 168 return(ret); 169 } 170 171
