ecdh.js
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var mods = [
'secp256k1',
'secp224r1',
'prime256v1',
'prime192v1'
]
var test = require('tape')
var _crypto = require('../')
var createECDH1 = _crypto.createECDH
var createECDH2 = require('create-ecdh/browser')
mods.forEach(function (mod) {
test('createECDH: ' + mod + ' uncompressed', function (t) {
t.plan(2)
var dh1 = createECDH1(mod)
dh1.generateKeys()
var dh2 = createECDH2(mod)
dh2.generateKeys()
var pubk1 = dh1.getPublicKey()
var pubk2 = dh2.getPublicKey()
t.notEquals(pubk1.toString('hex'), pubk2.toString('hex'), 'diff public keys')
var pub1 = dh1.computeSecret(pubk2).toString('hex')
var pub2 = dh2.computeSecret(pubk1).toString('hex')
t.equals(pub1, pub2, 'equal secrets')
})
test('createECDH: ' + mod + ' compressed', function (t) {
t.plan(2)
var dh1 = createECDH1(mod)
dh1.generateKeys()
var dh2 = createECDH2(mod)
dh2.generateKeys()
var pubk1 = dh1.getPublicKey(null, 'compressed')
var pubk2 = dh2.getPublicKey(null, 'compressed')
t.notEquals(pubk1.toString('hex'), pubk2.toString('hex'), 'diff public keys')
var pub1 = dh1.computeSecret(pubk2).toString('hex')
var pub2 = dh2.computeSecret(pubk1).toString('hex')
t.equals(pub1, pub2, 'equal secrets')
})
test('createECDH: ' + mod + ' set stuff', function (t) {
t.plan(5)
var dh1 = createECDH1(mod)
var dh2 = createECDH2(mod)
dh1.generateKeys()
dh2.generateKeys()
dh1.setPrivateKey(dh2.getPrivateKey())
dh1.setPublicKey(dh2.getPublicKey())
var priv1 = dh1.getPrivateKey('hex')
var priv2 = dh2.getPrivateKey('hex')
t.equals(priv1, priv2, 'same private key')
var pubk1 = dh1.getPublicKey()
var pubk2 = dh2.getPublicKey()
t.equals(pubk1.toString('hex'), pubk2.toString('hex'), 'same public keys, uncompressed')
t.equals(dh1.getPublicKey('hex', 'compressed'), dh2.getPublicKey('hex', 'compressed'), 'same public keys compressed')
t.equals(dh1.getPublicKey('hex', 'hybrid'), dh2.getPublicKey('hex', 'hybrid'), 'same public keys hybrid')
var pub1 = dh1.computeSecret(pubk2).toString('hex')
var pub2 = dh2.computeSecret(pubk1).toString('hex')
t.equals(pub1, pub2, 'equal secrets')
})
})