Install libsecp256k1-0 by entering the following commands in the terminal:
sudo apt update sudo apt install libsecp256k1-0
library for EC operations on curve secp256k1
An optimized C library for EC operations on curve secp256k1. . NB! This library is a work in progress and is being used to research best practices. Use at your own risk. . Features: * secp256k1 ECDSA signing/verification and key generation. * Adding/multiplying private/public keys. * Serialization/parsing of private keys, public keys, signatures. * Constant time, constant memory access signing and pubkey generation. * Derandomized DSA (via RFC6979 or with a caller provided function.) * Very efficient implementation.