Posts
Private bidding project using MPC
Hello, I have a final project for my bachelor’s degree at university on the topic of private bidding using MPC protocols. However, my coordonative teacher didn’t really provide me with a lot of material or resources in that area and I need a starting point. Could someone give me some …
Diffie-Hellman Key bigger than 64!
Hello, Im currently making a encryption algorithm and I am trying to add a key exchange in my algorithm. I found a method using Diffie Hellman to produce integers however I need a key (datatype) that is bigger than 64!. Because Im shuffling an array of size 64. Im gonna …
Cryptopals Set 1 Challenge 6
I'm doing Set 1 Challenge 6 from Cryptopals. This is my code so far: # https://cryptopals.com/sets/1/challenges/6 import base64 with open('repeating-keyXOR.txt', 'r') as file: text = file.read() decoded_bytes = base64.b64decode(text) bits = ''.join(f'{byte:08b}' for byte in decoded_bytes) # let's try keysize from 2 to 40 keysize_list = range(2, 41) def hamming_distance(bytes1, …
Safe to store public key encrypted private key?
I am implementing an anonymous credential system following Lysyanskaya, 2002, specifically much of chapter 3. We assume that the user (not anonymous) U has a user public key PK^(U) (I will try to do my best without LaTeX support here re: notation) and user private key, SK^(U.) When creating the …
The quantum computing revolution nobody is talking about.....
This is probably more significant than any of these papers coming out of China claiming to break RSA or Gift 64 using a western quantum computer. Scott Aaronson, the consummate quantum pessimist has rather abruptly changed his mind. The man who is famous for debunking claims related to quantum capabilities …
Chinese quantum D-Wave news is a repeat from 2023??
How to Read Cryptography Papers?
Does ChatGPT help in understanding cryptography papers? What should I do when I encounter concepts I'm not familiar with when reading papers? What are the most efficient ways to approach research? A lot of topics sound like gibberish, I am also struggling to understand certain mathematical concepts. Any advice?
Infinite inputs and Collisions with SHA256
Hi, Given SHA256 is supposed to be random and well distributed, is it true to say that essentially each output can have an infinite and relatively equal number of collisions generated by infinite inputs. i.e. given in reality we have infinite inputs to feed the function (think arbitrary long binary …
Feedback on this signature scheme?
So I made this signature scheme, it's the most bare bones version available. Anyone see any obvious holes in the core algorithm? It's python, so don't try are actually use it for anything. I do imagine it's quantum resilient, but I'm curious if it's classically resilient. Here's the repository. git@github.com:tart-grapes/dntl.git …