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var test = require('tape')
var crypto = require('diffie-hellman/browser')
test('diffie-hellman mod groups', function (t) {
[
'modp1', 'modp2', 'modp5', 'modp14', 'modp15', 'modp16'
].forEach(function (mod) {
t.test(mod, function (t) {
t.plan(3)
var dh1 = crypto.getDiffieHellman(mod)
var p1 = dh1.getPrime().toString('hex')
dh1.generateKeys()
var dh2 = crypto.getDiffieHellman(mod)
var p2 = dh2.getPrime().toString('hex')
dh2.generateKeys()
t.equals(p1, p2, 'equal primes')
var pubk1 = dh1.getPublicKey()
var pubk2 = dh2.getPublicKey()
t.notEquals(pubk1, pubk2, 'diff public keys')
var pub1 = dh1.computeSecret(pubk2).toString('hex')
var pub2 = dh2.computeSecret(dh1.getPublicKey()).toString('hex')
t.equals(pub1, pub2, 'equal secrets')
})
})
})
test('diffie-hellman key lengths', function (t) {
[
64, 65, 192
].forEach(function (len) {
t.test('' + len, function (t) {
t.plan(3)
var dh2 = crypto.createDiffieHellman(len)
var prime2 = dh2.getPrime()
var p2 = prime2.toString('hex')
var dh1 = crypto.createDiffieHellman(prime2)
var p1 = dh1.getPrime().toString('hex')
dh1.generateKeys()
dh2.generateKeys()
t.equals(p1, p2, 'equal primes')
var pubk1 = dh1.getPublicKey()
var pubk2 = dh2.getPublicKey()
t.notEquals(pubk1, pubk2, 'diff public keys')
var pub1 = dh1.computeSecret(pubk2).toString('hex')
var pub2 = dh2.computeSecret(dh1.getPublicKey()).toString('hex')
t.equals(pub1, pub2, 'equal secrets')
})
})
})