diff options
Diffstat (limited to 'openssl/crypto/des/fcrypt.c')
| -rw-r--r-- | openssl/crypto/des/fcrypt.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/openssl/crypto/des/fcrypt.c b/openssl/crypto/des/fcrypt.c new file mode 100644 index 00000000..ccbdff25 --- /dev/null +++ b/openssl/crypto/des/fcrypt.c @@ -0,0 +1,170 @@ +/* NOCW */ +#include <stdio.h> +#ifdef _OSD_POSIX +#ifndef CHARSET_EBCDIC +#define CHARSET_EBCDIC 1 +#endif +#endif +#ifdef CHARSET_EBCDIC +#include <openssl/ebcdic.h> +#endif + +/* This version of crypt has been developed from my MIT compatible + * DES library. + * Eric Young (eay@cryptsoft.com) + */ + +/* Modification by Jens Kupferschmidt (Cu) + * I have included directive PARA for shared memory computers. + * I have included a directive LONGCRYPT to using this routine to cipher + * passwords with more then 8 bytes like HP-UX 10.x it used. The MAXPLEN + * definition is the maximum of length of password and can changed. I have + * defined 24. + */ + +#include "des_locl.h" + +/* Added more values to handle illegal salt values the way normal + * crypt() implementations do. The patch was sent by + * Bjorn Gronvall <bg@sics.se> + */ +static unsigned const char con_salt[128]={ +0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,0xD8,0xD9, +0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,0xE0,0xE1, +0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9, +0xEA,0xEB,0xEC,0xED,0xEE,0xEF,0xF0,0xF1, +0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9, +0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,0x00,0x01, +0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09, +0x0A,0x0B,0x05,0x06,0x07,0x08,0x09,0x0A, +0x0B,0x0C,0x0D,0x0E,0x0F,0x10,0x11,0x12, +0x13,0x14,0x15,0x16,0x17,0x18,0x19,0x1A, +0x1B,0x1C,0x1D,0x1E,0x1F,0x20,0x21,0x22, +0x23,0x24,0x25,0x20,0x21,0x22,0x23,0x24, +0x25,0x26,0x27,0x28,0x29,0x2A,0x2B,0x2C, +0x2D,0x2E,0x2F,0x30,0x31,0x32,0x33,0x34, +0x35,0x36,0x37,0x38,0x39,0x3A,0x3B,0x3C, +0x3D,0x3E,0x3F,0x40,0x41,0x42,0x43,0x44, +}; + +static unsigned const char cov_2char[64]={ +0x2E,0x2F,0x30,0x31,0x32,0x33,0x34,0x35, +0x36,0x37,0x38,0x39,0x41,0x42,0x43,0x44, +0x45,0x46,0x47,0x48,0x49,0x4A,0x4B,0x4C, +0x4D,0x4E,0x4F,0x50,0x51,0x52,0x53,0x54, +0x55,0x56,0x57,0x58,0x59,0x5A,0x61,0x62, +0x63,0x64,0x65,0x66,0x67,0x68,0x69,0x6A, +0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72, +0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A +}; + +char *DES_crypt(const char *buf, const char *salt) + { + static char buff[14]; + +#ifndef CHARSET_EBCDIC + return(DES_fcrypt(buf,salt,buff)); +#else + char e_salt[2+1]; + char e_buf[32+1]; /* replace 32 by 8 ? */ + char *ret; + + /* Copy at most 2 chars of salt */ + if ((e_salt[0] = salt[0]) != '\0') + e_salt[1] = salt[1]; + + /* Copy at most 32 chars of password */ + strncpy (e_buf, buf, sizeof(e_buf)); + + /* Make sure we have a delimiter */ + e_salt[sizeof(e_salt)-1] = e_buf[sizeof(e_buf)-1] = '\0'; + + /* Convert the e_salt to ASCII, as that's what DES_fcrypt works on */ + ebcdic2ascii(e_salt, e_salt, sizeof e_salt); + + /* Convert the cleartext password to ASCII */ + ebcdic2ascii(e_buf, e_buf, sizeof e_buf); + + /* Encrypt it (from/to ASCII) */ + ret = DES_fcrypt(e_buf,e_salt,buff); + + /* Convert the result back to EBCDIC */ + ascii2ebcdic(ret, ret, strlen(ret)); + + return ret; +#endif + } + + +char *DES_fcrypt(const char *buf, const char *salt, char *ret) + { + unsigned int i,j,x,y; + DES_LONG Eswap0,Eswap1; + DES_LONG out[2],ll; + DES_cblock key; + DES_key_schedule ks; + unsigned char bb[9]; + unsigned char *b=bb; + unsigned char c,u; + + /* eay 25/08/92 + * If you call crypt("pwd","*") as often happens when you + * have * as the pwd field in /etc/passwd, the function + * returns *\0XXXXXXXXX + * The \0 makes the string look like * so the pwd "*" would + * crypt to "*". This was found when replacing the crypt in + * our shared libraries. People found that the disabled + * accounts effectively had no passwd :-(. */ +#ifndef CHARSET_EBCDIC + x=ret[0]=((salt[0] == '\0')?'A':salt[0]); + Eswap0=con_salt[x]<<2; + x=ret[1]=((salt[1] == '\0')?'A':salt[1]); + Eswap1=con_salt[x]<<6; +#else + x=ret[0]=((salt[0] == '\0')?os_toascii['A']:salt[0]); + Eswap0=con_salt[x]<<2; + x=ret[1]=((salt[1] == '\0')?os_toascii['A']:salt[1]); + Eswap1=con_salt[x]<<6; +#endif + +/* EAY +r=strlen(buf); +r=(r+7)/8; +*/ + for (i=0; i<8; i++) + { + c= *(buf++); + if (!c) break; + key[i]=(c<<1); + } + for (; i<8; i++) + key[i]=0; + + DES_set_key_unchecked(&key,&ks); + fcrypt_body(&(out[0]),&ks,Eswap0,Eswap1); + + ll=out[0]; l2c(ll,b); + ll=out[1]; l2c(ll,b); + y=0; + u=0x80; + bb[8]=0; + for (i=2; i<13; i++) + { + c=0; + for (j=0; j<6; j++) + { + c<<=1; + if (bb[y] & u) c|=1; + u>>=1; + if (!u) + { + y++; + u=0x80; + } + } + ret[i]=cov_2char[c]; + } + ret[13]='\0'; + return(ret); + } + |