path: root/lib/dh_test.go

// Copyright © 2021 siddharth <s@ricketyspace.net>
// SPDX-License-Identifier: ISC

package lib

import "testing"

func TestDH(t *testing.T) {
	p := `ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024
e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd
3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec
6f44c42e9a637ed6b0bff5cb6f406b7edee386bfb5a899fa5ae9f
24117c4b1fe649286651ece45b3dc2007cb8a163bf0598da48361
c55d39a69163fa8fd24cf5f83655d23dca3ad961c62f356208552
bb9ed529077096966d670c354e4abc9804f1746c08ca237327fff
fffffffffffff`
	g := "2"

	bobDH, ok := NewDH(p, g)
	if !ok {
		t.Errorf("Error: Unable to initialize Bob's DH\n")
		return
	}

	aliceDH, ok := NewDH(p, g)
	if !ok {
		t.Errorf("Error: Unable to initialize Alice's DH\n")
		return
	}

	bobSK := bobDH.SharedSecret(aliceDH.Pub())
	aliceSK := aliceDH.SharedSecret(bobDH.Pub())
	if bobSK.Cmp(aliceSK) != 0 {
		t.Errorf("Error: Shared Secret for Bob and Alice is not the same\n")
	}
}