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keys_test.go
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keys_test.go
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package gotrax
import "github.com/otrv4/ed448"
import . "gopkg.in/check.v1"
var sharedSym = [57]byte{
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00,
}
func (s *GotraxSuite) Test_ValidatePoint_checksThatThePointIsNotIdentity(c *C) {
c.Assert(ValidatePoint(IdentityPoint), ErrorMatches, "given point is the identity point")
}
func (s *GotraxSuite) Test_ValidatePoint_checksThatThePointIsOnTheCurve(c *C) {
p := ed448.NewPoint([16]uint32{
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
}, [16]uint32{
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
}, [16]uint32{
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
}, [16]uint32{
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
})
c.Assert(ValidatePoint(p), ErrorMatches, "given point is not on the curve")
}
func (s *GotraxSuite) Test_ValidatePoint_checksThatThePointIsFine(c *C) {
p := ed448.NewPoint([16]uint32{}, [16]uint32{}, [16]uint32{}, [16]uint32{})
p.DSADecode([]byte{
0xd9, 0xe9, 0xed, 0x15, 0xf1, 0x57, 0x6f, 0x39,
0x80, 0xa4, 0x57, 0xa0, 0x3c, 0xc5, 0x9, 0xec,
0xa0, 0x13, 0x90, 0x57, 0xfc, 0xb, 0x33, 0x36,
0x55, 0x17, 0xf, 0x7f, 0x34, 0x8e, 0xe1, 0x15,
0x19, 0xdc, 0x86, 0x2f, 0x82, 0xb, 0x3a, 0xe,
0x42, 0x9, 0xc3, 0xdb, 0xd0, 0x5b, 0x93, 0x19,
0x2c, 0x39, 0x96, 0x2a, 0x51, 0xfe, 0x58, 0xf9,
0x0,
})
c.Assert(ValidatePoint(p), IsNil)
}
func (s *GotraxSuite) Test_GenerateKeypair_generatesWhatIsExpected(c *C) {
kp := GenerateKeypair(ReaderIntoWithRandom(FixtureRand()))
c.Assert(kp.Sym[:], DeepEquals, []byte{
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd, 0xab, 0xcd,
0xab,
})
c.Assert(kp.Priv.k.Encode(), DeepEquals, []byte{
0x1a, 0x9f, 0xb0, 0xf5, 0xa1, 0xcc, 0x2e, 0xfc,
0x78, 0xde, 0x54, 0xd8, 0xd9, 0xab, 0xc8, 0x56,
0x64, 0xc7, 0x23, 0x1a, 0xe0, 0xcb, 0x8a, 0x12,
0x1f, 0x85, 0x19, 0xac, 0xe8, 0xa5, 0xac, 0x70,
0x96, 0xe8, 0x74, 0x2d, 0x92, 0x1c, 0xa7, 0xb3,
0xe9, 0xab, 0x8d, 0x8e, 0x27, 0xdb, 0x3f, 0x3d,
0x2c, 0xd1, 0x28, 0x1f, 0x73, 0xb3, 0xbb, 0x3d,
})
c.Assert(kp.Pub.k.DSAEncode(), DeepEquals, []byte{
0x6d, 0xf0, 0x8d, 0xf3, 0x8, 0x94, 0x3a, 0xa0,
0xb6, 0xed, 0x29, 0xc0, 0xeb, 0xd2, 0x69, 0x74,
0xa7, 0xb9, 0xcc, 0x53, 0x4, 0xea, 0xf8, 0x89,
0x73, 0xa6, 0x35, 0x62, 0x6, 0xc5, 0xd3, 0x26,
0x63, 0x90, 0xd8, 0x19, 0xb2, 0xf9, 0x84, 0xc8,
0xb9, 0x66, 0x9d, 0x68, 0xea, 0x73, 0x2f, 0x9a,
0x17, 0x91, 0x1d, 0xd2, 0x36, 0x77, 0x81, 0x6e,
0x0,
})
}
func (s *GotraxSuite) Test_Keypair_Fingerprint_returnsCorrectFingerprint(c *C) {
expectedFpr := Fingerprint{
0x4, 0x31, 0x67, 0xb9, 0x76, 0x1e, 0x86, 0x29,
0x69, 0x85, 0xdd, 0xb, 0x95, 0xba, 0x46, 0xdc,
0xaf, 0xb5, 0x68, 0x4f, 0x1a, 0x27, 0x62, 0x31,
0xbf, 0x66, 0xe8, 0xb6, 0xb6, 0x2f, 0xc3, 0x27,
0xb4, 0x4b, 0xce, 0x37, 0x28, 0x4, 0x51, 0xa7,
0x28, 0xcd, 0x99, 0x90, 0xa5, 0xe8, 0x1d, 0xd9,
0x5b, 0xe, 0xba, 0x10, 0x9a, 0x87, 0x8c, 0xeb,
}
kp := DeriveKeypair(sharedSym)
fpr := kp.Fingerprint()
c.Assert(fpr, DeepEquals, expectedFpr)
}
func (s *GotraxSuite) Test_PublicKey_K_returnsTheInternalPoint(c *C) {
kp := DeriveKeypair(sharedSym)
k := kp.Pub.K()
c.Assert(k.DSAEncode(), DeepEquals, []byte{
0x05, 0x72, 0xc1, 0x4c, 0xb1, 0x30, 0x77, 0x44,
0xb9, 0x2f, 0x38, 0x37, 0xf9, 0x96, 0x39, 0xab,
0xbb, 0x20, 0xff, 0xc4, 0x71, 0xd8, 0x9d, 0x9d,
0x54, 0x53, 0x49, 0xdc, 0x70, 0x0e, 0x01, 0x27,
0x49, 0x1f, 0x06, 0x13, 0x14, 0xfa, 0xf8, 0x9a,
0x85, 0xc7, 0x07, 0x60, 0xbd, 0x01, 0x88, 0xa5,
0x66, 0x9d, 0x1a, 0x43, 0x93, 0xf0, 0x83, 0x4b,
0x80,
})
}
func (s *GotraxSuite) Test_PrivateKey_K_returnsTheInternalScalar(c *C) {
kp := DeriveKeypair(sharedSym)
k := kp.Priv.K()
c.Assert(k.Encode(), DeepEquals, []byte{
0x4b, 0x40, 0xab, 0xd6, 0x50, 0x08, 0x1d, 0x77,
0x53, 0x8b, 0x10, 0x93, 0x79, 0x64, 0x00, 0x41,
0x12, 0x64, 0xb1, 0x2d, 0x28, 0xf4, 0x5b, 0x6b,
0xfc, 0x47, 0x0e, 0xd3, 0x27, 0xa6, 0x5e, 0x2f,
0x5f, 0x24, 0xe4, 0xc0, 0x5a, 0x3f, 0x9c, 0xf6,
0x1f, 0x50, 0x55, 0x6e, 0x4c, 0xd0, 0xa0, 0xe6,
0xf6, 0xe1, 0xf4, 0xe1, 0x2a, 0x29, 0xc6, 0x20,
})
}
func (s *GotraxSuite) Test_EddsaSignature_roundtrips(c *C) {
bb := [114]byte{0x42, 0x13, 0xAA}
ed := CreateEddsaSignature(bb)
c.Assert(ed.s, DeepEquals, bb)
c.Assert(ed.S(), DeepEquals, bb)
}
func (s *GotraxSuite) Test_CreatePublicKey_createsAKey(c *C) {
k1 := DeriveKeypair(sharedSym).Pub
kk := CreatePublicKey(k1.k, SharedPrekeyKey)
c.Assert(kk.k, DeepEquals, k1.k)
c.Assert(kk.keyType, Equals, SharedPrekeyKey)
}
func (s *GotraxSuite) Test_CreatePrivateKey_createsAKey(c *C) {
k1 := DeriveKeypair(sharedSym).Priv
kk := CreatePrivateKey(k1.k)
c.Assert(kk.k, DeepEquals, k1.k)
}