Example #1
0
func (s *XLSuite) doKeyTests(c *C, node *Node, rng *xr.PRNG) {
	// COMMS KEY
	commsPubKey := node.GetCommsPublicKey()
	c.Assert(commsPubKey, Not(IsNil)) // NOT

	privCommsKey := node.GetCommsPrivateKey()
	c.Assert(privCommsKey.Validate(), IsNil)

	expLen := (*privCommsKey.D).BitLen()
	if VERBOSITY > 1 {
		fmt.Printf("bit length of comms private key exponent is %d\n", expLen)
	}
	// 2037 seen at least once
	c.Assert(true, Equals, (2036 <= expLen) && (expLen <= 2048))

	c.Assert(privCommsKey.PublicKey, Equals, *commsPubKey) // XXX FAILS

	// SIG KEY
	sigPubKey := node.GetSigPublicKey()
	c.Assert(sigPubKey, Not(IsNil)) // NOT

	privSigKey := node.GetSigPrivateKey()
	c.Assert(privSigKey.Validate(), IsNil)

	expLen = (*privSigKey.D).BitLen()
	if VERBOSITY > 1 {
		fmt.Printf("bit length of sig private key exponent is %d\n", expLen)
	}
	// lowest value seen as of 2013-07-16 was 2039
	c.Assert(true, Equals, (2036 <= expLen) && (expLen <= 2048))

	c.Assert(privSigKey.PublicKey, Equals, *sigPubKey) // FOO

	// sign /////////////////////////////////////////////////////////
	msgLen := 128
	msg := make([]byte, msgLen)
	rng.NextBytes(msg)

	d := sha1.New()
	d.Write(msg)
	hash := d.Sum(nil)

	sig, err := rsa.SignPKCS1v15(rand.Reader, node.skPriv, cr.SHA1, hash)
	c.Assert(err, IsNil)

	signer := node.getSigner()
	signer.Update(msg)
	sig2, err := signer.Sign() // XXX change interface to allow arg

	lenSig := len(sig)
	lenSig2 := len(sig2)
	c.Assert(lenSig, Equals, lenSig2)

	for i := 0; i < lenSig; i++ {
		c.Assert(sig[i], Equals, sig2[i])
	}

	// verify ///////////////////////////////////////////////////////
	err = rsa.VerifyPKCS1v15(sigPubKey, cr.SHA1, hash, sig)
	c.Assert(err, IsNil)

	// 2013-06-15, SigVerify now returns error, so nil means OK
	c.Assert(nil, Equals, xc.SigVerify(sigPubKey, msg, sig))

	s.nilArgCheck(c)
}
Example #2
0
// XXX TODO: move these tests into crypto/sig_test.go
// func nilArgCheck(t *testing.T) {
func (s *XLSuite) nilArgCheck(c *C) {
	// the next statement should always return an error
	err := xc.SigVerify(nil, nil, nil)
	c.Assert(nil, Not(Equals), err)
}