edf0bfb52b
(meaning pointer to char) to des_cblock * (meaning pointer to array with 8 char elements), which allows the compiler to do more typechecking. (The changed argument types were of type des_cblock * back in SSLeay, and a lot of ugly casts were used then to turn them into pointers to elements; but it can be done without those casts.) Introduce new type const_des_cblock -- before, the pointers rather than the elements pointed to were declared const, and for some reason gcc did not complain about this (but some other compilers did).
138 lines
3.5 KiB
C
138 lines
3.5 KiB
C
/* NOCW */
|
|
#include <stdio.h>
|
|
|
|
/* This version of crypt has been developed from my MIT compatable
|
|
* DES library.
|
|
* The library is available at pub/Crypto/DES at ftp.psy.uq.oz.au
|
|
* 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 lenght 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
|
|
};
|
|
|
|
void fcrypt_body(DES_LONG *out,des_key_schedule ks,
|
|
DES_LONG Eswap0, DES_LONG Eswap1);
|
|
|
|
#if defined(PERL5) || defined(__FreeBSD__)
|
|
char *des_crypt(const char *buf,const char *salt);
|
|
#else
|
|
char *crypt(const char *buf,const char *salt);
|
|
#endif
|
|
#if defined(PERL5) || defined(__FreeBSD__)
|
|
char *des_crypt(const char *buf, const char *salt)
|
|
#else
|
|
char *crypt(const char *buf, const char *salt)
|
|
#endif
|
|
{
|
|
static char buff[14];
|
|
|
|
return(des_fcrypt(buf,salt,buff));
|
|
}
|
|
|
|
|
|
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 disbled
|
|
* accounts effectivly had no passwd :-(. */
|
|
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;
|
|
|
|
/* 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(&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);
|
|
}
|
|
|