Use this tag for questions about challenge-response authentication. Do NOT use it because the question is related to some programming challenge.
Questions tagged [challenge-response]
106 questions
0
votes
1 answer
U2F FIDO - application & challenge parameter
When a user want to register his device, the relying party provide some parameters which are :
a challenge,
appID,
Version of protocol
The user performs then a "user presence test" by touching the button on his device sending those informations…

QBl
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votes
2 answers
Swift and Alamofire SSL Pinning and Handling Challenge
I need to handle the challenge when I try to get the json from my internal web server. I followed this from a previous question. Here is my code
let defaultManager: Alamofire.SessionManager = {
let serverTrustPolicies: [String:…

plgelso
- 107
- 2
- 15
0
votes
1 answer
Linux disable ssh ChallengeResponse for one user
I just installd libpam-yubico to use my Yubikey 4 to login in ssh (Debian 8).
My problem is that i can't connect with my mobile phone because my Yubikey 4 can't be used from a mobile. Same problem for my SFTP connection.
So what I want to do is:…

alexandregv
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- 4
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votes
0 answers
How to crack Challenge-Response Authentication
I am trying to get into the firmware of an office phone for a school project. The professor gave us a few hints and I figured out how to ssh into the VoIP phone and get to the directory he wants us to get to. This is where I'm stuck.
The phone gives…

ss1111
- 239
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0
votes
3 answers
Simple "Math" CAPTCHA
everyone. I am a jquery beginner and want to ask a few questions.
I am coding a simple math captcha for form submission test, I wanna generate a set of new random number each time when I press the "reset button".
But I when I google for the…

Angus Y.
- 3
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0
votes
1 answer
Google Challenge Dilemma, Insights into possible errors?
I am currently passing 4 of the 5 hidden test cases for this challenge and would like some input
Quick problem description:
You are given two input strings, String chunk and String word
The string "word" has been inserted into "chunk" some number…

Jay Jay
- 11
0
votes
1 answer
Q: Randomised character creation using a points system
This is more an abstract "How would I approach this" question than me struggling with coding. I want to make a character creation screen where you have 0 points but can take away from one stat and put it into another. How, under this system would…

SolarPolarMan
- 7
- 7
0
votes
0 answers
Secured License validation in distributed application c#
Let's assume I have two applications: service_1 and service_2.
service_1 is a basic application, every user with valid license can use this application according to its license.
service_2 is a premium application, means user with special license can…

Roni
- 369
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0
votes
1 answer
Google Play games unable to send challenge request
I am developing an app in which i have implemented the leader-board and now I want to challenge my friends to beat my best score not to play multiplayer game but i searched a lot for this i didn't get any useful data.
it is very helpful if you…

Chirag
- 156
- 1
- 10
0
votes
1 answer
Issue about converting from char array to string - C++
#include
#include
#include
using namespace std;
int main () {
string vet[10], aux;
std::vector name;
int count=0, sum=0;
while (count<10) {
getline(cin, aux);
for (int i=0;…

Leonardo
- 163
- 9
0
votes
1 answer
Why is method A flawed compared to B for UVa online judge 100 (3n+1)?
Simply changing from Swap Method A to Swap Method B, the UVa judge goes from 'Wrong Answer' to 'Accepted'. Why is that? I thank you all in advance for your responses.
import java.io.IOException;
import java.util.StringTokenizer;
/**
* @author…

Coder47
- 101
- 1
- 8
0
votes
1 answer
Strange behaviour with fs.rename : file deletion (node.js)
I wanted to write a custom script that would rename all of the files in a directory that contains a dot in the filename, recursively. Like :
mv 'foo.bar.avi' 'foo bar.avi'
It also converts directories names like 'a.b.c/x.y.z.mp4' becomes 'a b c/x…

Charaf
- 324
- 3
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0
votes
1 answer
JavaScript constructor whose instances are functions
I know this may be a bizarre question with possibly no practical application, but would it be possible to make a JavaScript class that constructs instances that behave as functions? Here's what I mean:
function Factory() {}
// this may not be…

Patrick Roberts
- 49,224
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- 153
0
votes
2 answers
Advanced filter fails at iterations, run-time error 1004
I'm iterating through columns(B through E) and trying to get unique values from each column to a cell in a different workbook. The iteration happens only once, doesn't get repeated(when x=3), and I'm getting run-time error 1004: application-defined…

Anton
- 13
- 4
0
votes
3 answers
The sum of all the multiples of 3 or 5 below N. Project Euler
So I'm doing the Project Euler challenge and I'm stuck at the first one, I'm using Java as pl. for example if we have to list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.
We…

Hadh
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