Questions tagged [crack.c]
The crack.c tag has no usage guidance.
20
questions
0
votes
1answer
335 views
My crack code works for rofl but not for all
My crack code works for the rofl code but not for all
I tried two other codes and I don't know why was it not able to crack thos codes even when I increased my range of characters for search
#define ...
2
votes
2answers
229 views
PSET2, crack.c Did this problem fall out of the sky from week 115? Am I overthinking this?
This is the spec:
Specification
Design and implement a program, crack, that cracks
passwords.
Implement your program in a file called crack.c in a directory called
crack.
Your ...
0
votes
1answer
109 views
How to generate passwords in Crack Pset 2?
Another question about Crack in pset2. Can I have passwords that are mixed with both lowercase and uppercase letters? Like: “PIzzA”?
If so, I’m a little confused on how to write the code to get all ...
0
votes
1answer
73 views
Question about Crack in PSET2
My questions about Crack are:
Before we pass in salt do we have to define it ourselves? For example, since it's a 2 digit number do we create a method that produces random numbers for salt or does it ...
0
votes
1answer
95 views
crack.c: No response 😒
When I run my crack.c, the program never responds. It just sits there and wastes time. I even tried debugging it on the CS50 IDE, and it was normal. Here is my code:
#include <cs50.h>
#include &...
0
votes
1answer
1k views
crack.c: UndefinedBehaviorSanitizer:DEADLYSIGNAL --SOLVED--
When I run my code:
#include <cs50.h>
#include <stdio.h>
#include <crypt.h>
#include <string.h>
string crack(string hashed);
string deleteAll(string s, char target);
// ...
0
votes
2answers
178 views
pset2 crack: Takes too long
My code takes like 1-2 minutes to execute, and the result is always Killed. Here is my code:
#include <cs50.h>
#include <stdio.h>
#include <crypt.h>
#include <string.h>
...
0
votes
1answer
47 views
my crack.c actually works, but doesnt give away the key! Pset2
I am trying to figure out how to solve the crack problem from pset2, everything works fine with compiling but when I try to crack the hash from the example
50cI2vYkF0YU2
which is Zamayla's ...
0
votes
1answer
111 views
Basic use of crypt in crack.c? (Hash “ROLF”)
Here is a quick test case for crack direct from the CS50 AP material,
$ ./crack 50fkUxYHbnXGw
ROFL
Here is my code,
#define _XOPEN_SOURCE
#include <unistd.h>
#include <stdio.h>
int ...
0
votes
1answer
745 views
crack.c: error: implicit declaration of function 'crypt' is invalid in C99
When I try to compile with
clang -ggdb3 -O0 -std=c11 -Wall -Werror -Wshadow crack.c -lcrypt -lcs50 -lm -o crack
I get
crack.c: error: implicit declaration of function 'crypt' is invalid in C99 [-...
0
votes
2answers
532 views
PSET2: Can't figure out what's wrong with my crack.c code?
I've been trying to get my crack code working for days now. It took me a while to even understand the problem but I think I have somewhat of a handle on it now. My code compiles completely fine but ...
1
vote
1answer
3k views
pset2: Crack takes a lot of time
I take an average of 20 minutes to crack the password and some people are saying it can be done in less than 30 seconds, I have been trying to find out why my code takes that much time but I can't.
#...
0
votes
1answer
110 views
PSET 2 - CRACK - Does not give output/program loops seemingly forever
I managed to get the program to output some of the passwords but not all. For some of the hashes I use as input, the program executes seemingly forever. (haven't let it go on longer than 4 mins)
Any ...
0
votes
1answer
485 views
CS50 2017 crack.c not working properly
Can't understand why my code is not working.
Tried 2 different loops to arrive at the solution but the first one does not arrive at anything and keeps on going:
#include <stdio.h>
//#include &...
0
votes
1answer
176 views
pset2 crack.c, competence question
Thank in advance for any reply,
Im currently on crack.c in pset2, I have so far completed all other problems leading to this one. It seems like this problem is a few notches more advance then the ...
0
votes
0answers
371 views
Crack.c in PSet2 - is strcmp() necessary? & other questions
So I've been stuck on crack.c for two weeks now (not literally - I have a full time job too ha) and on top of having 50 questions about it, I just can't get my head round the solution!
Basically I ...
0
votes
1answer
2k views
strcmp not evaluating as expected
I'm having trouble with a key section of my code where, for some reason that is beyond my skill level at this point, it is not comparing properly. For some reason it's evaluating to true for the wrong ...
0
votes
1answer
124 views
crack.c something weird is happening to the generated keys
This is how I am generating all of the keys and checking them (for debugging purposes I'm printing them out too)
char salt[] = "50";
char key[4] = { 0 };
char alphabet[] = "...
0
votes
1answer
601 views
crack.c pset2, second parameter of 'main' (argument array) must be of type 'char **'
I'm trying to initialize main like this
int main(int argc, char argv[])
so I can pass "argv" and the crypt() result to strcmp() like this
if (strcmp(argv, crypt(password, salt)) == 0)
{
...
0
votes
1answer
246 views
cs50 pset2- crack.c gives me a segmentation fault
Here's the program:
#define _XOPEN_SOURCE
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <cs50.h>
int ...
