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tiny-secp256k1

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tiny-secp256k1

A tiny secp256k1 JS

  • 2.2.3
  • latest
  • Source
  • npm
  • Socket score

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205K
decreased by-14.35%
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2
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What is tiny-secp256k1?

The tiny-secp256k1 npm package is a small, fast, and reliable library for elliptic curve cryptography using the secp256k1 curve. It is commonly used in blockchain and cryptocurrency applications, particularly for Bitcoin, to perform cryptographic operations such as key generation, signing, and verification.

What are tiny-secp256k1's main functionalities?

Key Generation

This feature allows you to generate a private key and derive the corresponding public key using the secp256k1 curve.

const secp256k1 = require('tiny-secp256k1');
const randomBytes = require('crypto').randomBytes;

const privateKey = randomBytes(32);
const publicKey = secp256k1.pointFromScalar(privateKey);
console.log('Private Key:', privateKey.toString('hex'));
console.log('Public Key:', publicKey.toString('hex'));

Signing a Message

This feature allows you to sign a message using a private key. The message is hashed using SHA-256 before signing.

const secp256k1 = require('tiny-secp256k1');
const randomBytes = require('crypto').randomBytes;
const createHash = require('crypto').createHash;

const privateKey = randomBytes(32);
const message = 'Hello, world!';
const messageHash = createHash('sha256').update(message).digest();
const signature = secp256k1.sign(messageHash, privateKey);
console.log('Signature:', signature.toString('hex'));

Verifying a Signature

This feature allows you to verify a signature using a public key. The message is hashed using SHA-256 before verification.

const secp256k1 = require('tiny-secp256k1');
const createHash = require('crypto').createHash;

const publicKey = Buffer.from('your-public-key-hex', 'hex');
const message = 'Hello, world!';
const messageHash = createHash('sha256').update(message).digest();
const signature = Buffer.from('your-signature-hex', 'hex');
const isValid = secp256k1.verify(messageHash, publicKey, signature);
console.log('Is the signature valid?', isValid);

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Package last updated on 29 Jun 2023

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