Collaborate Disseminate
I’m learning for the university and have to do a Mifare Classic replay attack.
I don’t really know how to do that and hope some of you can help me at least a bit.
The goal is to get the number of iterations after the start of the random nu… Continue reading How to do a Mifare Classic Replay attack [migrated]
was trying to brute force a random number generated by the ruby method rand which generated a random float number between 0.0 and 1.0 excluding 1.0.
so for example I have this code:
Time.now.to_s.split(//).sort_by {rand}.join
this produce… Continue reading brute forcing a pseudoRandom number Generator
Let’s say I have generated 16 integers (between 0 and 128) using Python
from random import seed, randint
seed(1234)
randoms = [randint(0, 128) for _ in range(0, 16)]
If we have a rough knowledge of the seed (its number of digits for examp… Continue reading Is it possible to retrieve seed from a few random numbers?
I want to generate 6 random words using Wiktionary and random numbers from /dev/random. I’ll get a random number with /dev/random and then use the word from that index.
I know /dev/random should be used to generate random keys, but if it’s… Continue reading How does /dev/random not leak future bytes from old ones
I am creating an internal application that will be used to generate and manage self-signed certificates and certificate authorities. Its primary use will be for generating certificates used in SSL decryption by my clients’ firewalls.
My go… Continue reading ChaCha Single-Use RNG with All Zero Plaintext + Nonce
I mean this has certainly been implemented by some scummy PRNG developers, which thought of the economics behind it (especially in the casino and similar businesses). So it might be even legal in some cases, but this not Law StackExchange … Continue reading What’s the best approach to make PRNGs favourably deterministic a.k.a. biased and how to protect yourself against this?
I know all the coefficients lcg. But the programming language’s built-in random function (which generates these values from 0 to 36) discards the bits. I don’t quite understand what that means. And is it possible to predict the next number… Continue reading How to determine the subsequent numbers of lсg knowing the coefficients 0 – 36? [closed]
How to hack the built-in function of the programming language random (Linear Congruential Generator) which has a limit from 0 – 36?
Please help me to solve this problem. Unfortunately, I am not a coder/programmer. Condition: There is a ran… Continue reading How to hack the built-in function of the programming language random (Linear Congruential Generator) which has a limit from 0 – 36? [closed]
How to hack the built-in function of the programming language random (Linear Congruential Generator) which has a limit from 0 – 36?
Please help me to solve this problem. Unfortunately, I am not a coder/programmer. Condition: There is a ran… Continue reading How to hack the built-in function of the programming language random (Linear Congruential Generator) which has a limit from 0 – 36? [closed]
I read in the book that you cannot use True Random Number Generator (TRNG) to generate key stream in Stream Ciphers:
We
need some type of random number generator to derive the key stream. First, we note
that we cannot use a TRNG since, by… Continue reading Why can’t you use True Random Number Generator (TRNG) to generate key stream in Stream Ciphers?