simple-js-ecdsa

this project is intended as an easy to use ecdsa

creating a new identity

const identity = Identity.new()

if you would like to use a curve besides secp256k1

const ECMath = require('simple-js-ec-math')
const g = new ECMath.ModPoint(x,y)
const curve = new ECMath.Curve(<a>, <b>, <n>, <p>, g, <preprocessing>)
const identity = Identity.new(curve)

opening an existing identity using a private key

Identity.fromKey(<private number>, <curve?>)

opening a identity using a wif

Identity.fromWif(<private wif>, <curve?>)

opening a identity using sec1

Identity.fromSec1(<private wif>, <curve?>)

retrievable items in a identity

identity.key
identity.sec1Compressed
identity.sec1Uncompressed
identity.wif
identity.address
identity.compressAddress

signing a message

const signature = identity.sign(<message>)

verify a signature

identity.verify(<message>, <signature>)

signing in bip66 format

const signature = identity.signBip66(<message>)

verify bip66 signature

identity.verifyBip66(<message>, <signature>)

verify address

identity.validateAddress(<address>)

get public point

identity.publicPoint

key exchange

<identity>.keyExchange(<identity>)

contribute

bitcoin address: 1KKiniL7QnMPZZLjgGB2Kq1d7zsjUr6TnS

ethereum address: 0x177b258bD53A8F7d8C609A9277A60A51d1e7e0e0