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/*
This code is based on work from
L0phtcrack 1.5 06.02.97 mudge@l0pht.com
The code also contains sources from:
. routines from the samba code source
md4.c smbdes.c
Anton Roeckseisen (anton@genua.de)
*/
/*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "mkntpwd.h"
void str_to_key(unsigned char *,unsigned char *);
void usage(char *);
int PutUniCode(char *dst,char *src);
void printlanhash(char *tmp);
void mdfour(unsigned char *out, unsigned char *in, int n);
void E_P16(unsigned char *p14,unsigned char *p16);
void main(int argc, char **argv) {
extern char *optarg;
int c;
int printlan = 0;
char lanpwd[LMPASSWDLEN+1];
int printnt = 0;
char inputfile[FILENAMEBUFFER+1] = "";
FILE* InputFilePtr;
int just_pwd = 0;
int i;
char hashout[17];
char ntpasswd[NTPASSWDLEN+1];
char *hold;
unsigned char *p16;
int uni_len;
char passwd[NTPASSWDLEN+1];
if (argc==1)
usage(argv[0]);
if (argc==2)
just_pwd=1;
else
just_pwd=0;
lanpwd[0] = '\0';
ntpasswd[0] = '\0';
while ( (c = getopt(argc, argv, "L:N:f:")) != EOF){
switch(c) {
case 'L':
printlan++;
strncpy(lanpwd,optarg,LMPASSWDLEN);
lanpwd[LMPASSWDLEN]='\0';
for (i=0;i<LMPASSWDLEN;i++)
lanpwd[i]=toupper(lanpwd[i]);
break;
case 'N':
printnt++;
strncpy(passwd,optarg,NTPASSWDLEN);
passwd[NTPASSWDLEN]='\0';
break;
case 'f':
strncpy(inputfile,optarg,FILENAMEBUFFER);
inputfile[FILENAMEBUFFER]='\0';
break;
default:
usage(argv[0]);
}
}
/* Get password from file or STDIN */
if (inputfile[0]!='\0') {
just_pwd=0; /* make sure no shit is happening... */
/* get NT-password (longer) */
if (strcmp(inputfile,"-")==0) {
fgets(passwd,NTPASSWDLEN,stdin);
} else {
if ((InputFilePtr=fopen(inputfile,"r")) == NULL)
fprintf(stderr,"Couldn't open passwordfile: %s",inputfile) ;
fgets(passwd,NTPASSWDLEN,InputFilePtr);
fclose(InputFilePtr);
}
while (strlen(passwd)>0 && passwd[strlen(passwd)-1]=='\n')
passwd[strlen(passwd)-1]='\0';
/* create LANMAN-password (shorter) */
strncpy(lanpwd,passwd,LMPASSWDLEN);
lanpwd[LMPASSWDLEN]='\0';
for (i=0;i<LMPASSWDLEN;i++)
lanpwd[i]=toupper(lanpwd[i]);
printlan++;
printnt++;
}
/* Assume the one and only Arg is the new password! */
if (argc>1 && just_pwd==1) {
strncpy(lanpwd,argv[1],LMPASSWDLEN);
lanpwd[LMPASSWDLEN]='\0';
for (i=0;i<LMPASSWDLEN;i++)
lanpwd[i]=toupper(lanpwd[i]);
printlan++;
strncpy(passwd,argv[1],NTPASSWDLEN);
passwd[NTPASSWDLEN]='\0';
printnt++;
}
if (printlan >0) {
memset(hashout,'\0',17);
E_P16((uchar *)lanpwd,hashout);
printlanhash(hashout);
}
if (printnt >0) {
if (printlan>0) printf(":");
memset(ntpasswd, '\0', sizeof(ntpasswd));
if (passwd[strlen(passwd)-1] == '\n') /* strip the \n - this
is done in LowerString for the case sensitive
check */
passwd[strlen(passwd)-1] = '\0';
hold = (char *)malloc(NTPASSWDLEN * 2); /* grab space for
unicode */
if (hold == NULL){
fprintf(stderr, "out of memory...crackntdialog hold\n");
exit(1);
}
uni_len = PutUniCode(hold, passwd); /* convert to
unicode and return correct
unicode length for md4 */
p16 = (unsigned char*)malloc(17); /* grab space for md4 hash */
if (p16 == NULL){
fprintf(stderr, "out of memory...crackntdialect p16\n");
exit(1);
}
memset(p16,'\0',17);
mdfour(p16,hold, uni_len);
printlanhash(p16);
free(p16);
free(hold);
}
printf("\n");
exit(0);
}
/*****************************************************************************/
/*****************************************************************************/
/*****************************************************************************/
void usage(char *progname){
char *p;
p = strrchr(progname, '\\');
if (p == NULL)
p = progname;
else
p++;
fprintf(stderr, "Usage: %s [-L lanmgrpwd] [-N ntpasswd]\n",p);
fprintf(stderr, " %s password\n",p);
fprintf(stderr, " %s -f [-] [filename]\n\n",p);
fprintf(stderr, " -L lanmgrpasswd LanManager cleartextpwd <= 14 chars\n");
fprintf(stderr, " -N ntpasswd NT cleartextpwd <=128 chars (usually <=14)\n\n");
fprintf(stderr, " with both options present the encrypted LanManager-Pwd is \n");
fprintf(stderr, " printed first, followed by a ':' and the encrypted NT-Pwd.\n\n");
fprintf(stderr, " The second usage behaves like %s -L pwd -N pwd\n\n",p);
fprintf(stderr, " The third usage reads the password from STDIN or a File. Printout\n");
fprintf(stderr, " is the same as second.\n\n");
fprintf(stderr, "anton@genua.de\n\n");
exit(1);
}
/*******************************************************************
write a string in unicoode format
********************************************************************/
int PutUniCode(char *dst,char *src)
{
int ret = 0;
while (*src) {
dst[ret++] = src[0];
dst[ret++] = 0;
src++;
}
dst[ret++]=0;
dst[ret++]=0;
return(ret-2); /* the way they do the md4 hash they don't represent
the last null. ie 'A' becomes just 0x41 0x00 - not
0x41 0x00 0x00 0x00 */
}
/*
print binary buffer as hex-string
*/
void printlanhash(char *tmp) {
int i;
unsigned char c;
char outbuffer[33];
/* build string from binary hash */
for(i=0;i<16;i++) {
c=tmp[i];
sprintf(outbuffer+2*i,"%x",(c>>4) & 0x0f);
sprintf(outbuffer+2*i+1,"%x",c & 0x0f);
}
/* convert to uppercase */
for(i=0;i<32;i++)
outbuffer[i] = toupper(outbuffer[i]);
outbuffer[32]='\0';
/* print out hex-string */
printf("%s",outbuffer);
}
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