What's the chance of a collision in Python's secrets. compare_digest function? Question: The closest function I can find to a constant time compare in Python’s standard library is secrets.compare_digest But it makes me wonder, if in the case of using it to verify a secret token: What’s the chance of a collision? As in, what’s …
Blinding a message with PyCrypto in Python 3+ Question: In Python 2, there were two methods called blind/unblind. Their docs recommend that you should now use pkcs1_15, however they only show how to sign/verify a message. Their sample code looks like this: from Crypto.Signature import pkcs1_15 from Crypto.Hash import SHA256 from Crypto.PublicKey import RSA # …
Why do these passwords with the same salt and encryption not have the same output? Question: The output of the 2 variables "x" and "l" should be the same as they use the exact same salt and encrypting process. I’d like some info on why it is not the same and how I can fix …
Python code for generating valid BIP-39 mnemonic words for a bitcoin wallet not working Question: I am trying to generate valid BIP-39 mnemonic words for a bitcoin wallet in Python, but I am encountering an issue with the generated words being rejected by verification tools. I have followed the guidelines outlined in the BIP-39 standard, …
some problems of using Python's Cryptography on Windows Question: I would like to use the cryptography’s module on Windows, I am using version 1.12 and Python 3.10.6, and I have some problems. Actually, when I run my script, I receive the error : ` Traceback (most recent call last): File "C:/Users/edoua/Documents/cryptographie.py", line 1, in <module> …
Sending RSA encoded message from JavaScript React to Python. Ciphertext length must be equal to key size. issue Question: I receive the error "Ciphertext length must be equal to key size." when trying to send an encoded message from javascript to python. I have encoded the bytesarray to base64 in javascript and decoded the base64 …
reimplementing crypto-js in python cryptography Question: I want to implement the following code (written in JavaScript, using the crypto-js library) in Python (using the cryptography package) const data = ‘base 64 encoded encrypted data’; const salt = ‘XB7sHH26Hn&FmPLxnjGccKTfPV(yk’; const pass = ‘.. password ..’; const psw = `${PBKDF2(pass, salt)}(tXntTbJFzh]4EuQVmjzM9GXHCth8`; let data = AES.decrypt(data, psw).toString(enc.Utf8); Here’s …
Web3 python crypto cypher issue on M1 Mac Question: When I try to build a blockchain transaction using Web3 on python, I’m getting an error that is apparently because I’m using an Apple Silicon computer (2020 M1 MacBook Pro). I’m following a popular Solidity, Blockchain, and Smart Contract course on YouTube and I’m unable to …
Extract a public key from certificate Question: I’m trying to extract a public key from my certificate but i keep getting this error: ValueError: RSA key format is not supported.. Below is my code: from Crypto.PublicKey import RSA bob_crt = ‘bob.crt’ public_key = RSA.import_key(bob_crt) if isinstance(public_key, RSA.RsaKey): print("RSA public key") else: print("Other key") —–BEGIN CERTIFICATE—– …
Generate random ASCII strings until first N characters of it's hash matches specific string Question: So I’m trying to create a program in Python that generates a bunch of random ASCII strings that gets hashed with the specified id number "1234". The goal is to try to find a valid string where the first 6 …
