ecdsa

Does python ecdsa NIST-256p provide recovery code (byte)?

Does python ecdsa NIST-256p provide recovery code (byte)? Question: I am using the python ecdsa library for signing messages for blockchain transactions. In the blockchain specification it says, for secp256r1 that the signature should have a length of 65 bytes where: The signature must be of length 65 bytes in the form of [r, s, …

Total answers: 1

Verify Metamask signature (ethereum) using Python

Verify Metamask signature (ethereum) using Python Question: I would like to verify an ethereum (ETH) signature made in MetaMask using python. I’m developing a website using flask as backend. Javascript code send a POST requests to the back end containing the 3 following variables: {‘signature’: ‘0x0293cc0d4eb416ca95349b7e63dc9d1c9a7aab4865b5cd6d6f2c36fb1dce12d34a05039aedf0bc64931a439def451bcf313abbcc72e9172f7fd51ecca30b41dd1b’, ‘nonce’: ‘6875972781’, ‘adress’: ‘0x3a806c439805d6e0fdd88a4c98682f86a7111789’} My goal is to verify …

Total answers: 3

How to get an elliptic curve public key from a private key

How to get an elliptic curve public key from a private key Question: So, I need to get a public key from a corresponding 256 bit number using ECC spec256k1. So, lets say I get a private key using a sha256 from any passphrase, like this: >>> import hashlib >>> private_key = hashlib.sha3_256(b”Led Zeppelin – …

Total answers: 3