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dake_test.go
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dake_test.go
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package prekeyserver
import (
"github.com/otrv4/ed448"
"github.com/otrv4/gotrx"
. "gopkg.in/check.v1"
)
func (s *GenericServerSuite) Test_dake3Message_validate_acceptsAValidDake3Message(c *C) {
serverKey := gotrx.DeriveKeypair([symKeyLength]byte{0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25})
gs := &GenericServer{
identity: "masterOfKeys.example.org",
rand: gotrx.FixtureRand(),
key: serverKey,
fingerprint: serverKey.Pub.Fingerprint(),
sessions: newSessionManager(),
}
gs.session("[email protected]").(*realSession).tag = sita.instanceTag
phi := gotrx.AppendData(gotrx.AppendData(nil, []byte("[email protected]")), []byte(gs.identity))
spoint := gotrx.GenerateKeypair(gs)
gs.session("[email protected]").(*realSession).s = spoint
gs.session("[email protected]").(*realSession).i = sita.i.Pub.K()
gs.session("[email protected]").(*realSession).cp = sita.clientProfile
t := append([]byte{}, 0x01)
t = append(t, gotrx.KdfPrekeyServer(usageReceiverClientProfile, 64, sita.clientProfile.Serialize())...)
t = append(t, gotrx.KdfPrekeyServer(usageReceiverPrekeyCompositeIdentity, 64, gs.compositeIdentity())...)
t = append(t, gotrx.SerializePoint(sita.i.Pub.K())...)
t = append(t, gotrx.SerializePoint(spoint.Pub.K())...)
t = append(t, gotrx.KdfPrekeyServer(usageReceiverPrekeyCompositePHI, 64, phi)...)
sigma, _ := gotrx.GenerateSignature(gs, sita.longTerm.Priv, sita.longTerm.Pub, sita.longTerm.Pub, gs.key.Pub, spoint.Pub, t, gotrx.KdfPrekeyServer, usageAuth)
d3 := generateDake3(sita.instanceTag, sigma, []byte{0x01})
c.Assert(d3.validate("[email protected]", gs), IsNil)
}
func (s *GenericServerSuite) Test_dake3Message_validate_checksInstanceTag(c *C) {
serverKey := gotrx.DeriveKeypair([symKeyLength]byte{0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25})
gs := &GenericServer{
identity: "masterOfKeys.example.org",
rand: gotrx.FixtureRand(),
key: serverKey,
fingerprint: serverKey.Pub.Fingerprint(),
sessions: newSessionManager(),
}
gs.session("[email protected]").(*realSession).tag = sita.instanceTag
phi := gotrx.AppendData(gotrx.AppendData(nil, []byte("[email protected]")), []byte(gs.identity))
spoint := gotrx.GenerateKeypair(gs)
gs.session("[email protected]").(*realSession).s = spoint
gs.session("[email protected]").(*realSession).i = sita.i.Pub.K()
gs.session("[email protected]").(*realSession).cp = sita.clientProfile
t := append([]byte{}, 0x01)
t = append(t, gotrx.KdfPrekeyServer(usageReceiverClientProfile, 64, sita.clientProfile.Serialize())...)
t = append(t, gotrx.KdfPrekeyServer(usageReceiverPrekeyCompositeIdentity, 64, gs.compositeIdentity())...)
t = append(t, gotrx.SerializePoint(sita.i.Pub.K())...)
t = append(t, gotrx.SerializePoint(spoint.Pub.K())...)
t = append(t, gotrx.KdfPrekeyServer(usageReceiverPrekeyCompositePHI, 64, phi)...)
sigma, _ := gotrx.GenerateSignature(gs, sita.longTerm.Priv, sita.longTerm.Pub, sita.longTerm.Pub, gs.key.Pub, spoint.Pub, t, gotrx.KdfPrekeyServer, usageAuth)
d3 := generateDake3(0xBADBADBA, sigma, []byte{0x01})
c.Assert(d3.validate("[email protected]", gs), ErrorMatches, "incorrect instance tag")
}
func (s *GenericServerSuite) Test_dake3Message_validate_checksRingSignature(c *C) {
serverKey := gotrx.DeriveKeypair([symKeyLength]byte{0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25})
gs := &GenericServer{
identity: "masterOfKeys.example.org",
rand: gotrx.FixtureRand(),
key: serverKey,
fingerprint: serverKey.Pub.Fingerprint(),
sessions: newSessionManager(),
}
gs.session("[email protected]").(*realSession).tag = sita.instanceTag
phi := gotrx.AppendData(gotrx.AppendData(nil, []byte("[email protected]")), []byte(gs.identity))
spoint := gotrx.GenerateKeypair(gs)
gs.session("[email protected]").(*realSession).s = spoint
gs.session("[email protected]").(*realSession).i = sita.i.Pub.K()
gs.session("[email protected]").(*realSession).cp = sita.clientProfile
t := append([]byte{}, 0x01)
t = append(t, gotrx.KdfPrekeyServer(usageReceiverClientProfile, 64, sita.clientProfile.Serialize())...)
t = append(t, gotrx.KdfPrekeyServer(usageReceiverPrekeyCompositeIdentity, 64, gs.compositeIdentity())...)
t = append(t, gotrx.SerializePoint(sita.i.Pub.K())...)
t = append(t, gotrx.SerializePoint(spoint.Pub.K())...)
t = append(t, gotrx.KdfPrekeyServer(usageReceiverPrekeyCompositePHI, 64, phi)...)
sigma, _ := gotrx.GenerateSignature(gs, sita.longTerm.Priv, sita.longTerm.Pub, sita.longTerm.Pub, gs.key.Pub, spoint.Pub, t, gotrx.KdfPrekeyServer, usageAuth)
sigma.C1.Add(sigma.C1, ed448.NewScalar([]byte{0x01}))
d3 := generateDake3(sita.instanceTag, sigma, []byte{0x01})
c.Assert(d3.validate("[email protected]", gs), ErrorMatches, "incorrect ring signature")
}
func (s *GenericServerSuite) Test_dake3Message_validate_checksMessage(c *C) {
serverKey := gotrx.DeriveKeypair([symKeyLength]byte{0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25})
gs := &GenericServer{
identity: "masterOfKeys.example.org",
rand: gotrx.FixtureRand(),
key: serverKey,
fingerprint: serverKey.Pub.Fingerprint(),
sessions: newSessionManager(),
}
gs.session("[email protected]").(*realSession).tag = sita.instanceTag
phi := gotrx.AppendData(gotrx.AppendData(nil, []byte("[email protected]")), []byte(gs.identity))
spoint := gotrx.GenerateKeypair(gs)
gs.session("[email protected]").(*realSession).s = spoint
gs.session("[email protected]").(*realSession).i = sita.i.Pub.K()
gs.session("[email protected]").(*realSession).cp = sita.clientProfile
t := append([]byte{}, 0x01)
t = append(t, gotrx.KdfPrekeyServer(usageReceiverClientProfile, 64, sita.clientProfile.Serialize())...)
t = append(t, gotrx.KdfPrekeyServer(usageReceiverPrekeyCompositeIdentity, 64, gs.compositeIdentity())...)
t = append(t, gotrx.SerializePoint(sita.i.Pub.K())...)
t = append(t, gotrx.SerializePoint(spoint.Pub.K())...)
t = append(t, gotrx.KdfPrekeyServer(usageReceiverPrekeyCompositePHI, 64, phi)...)
sigma, _ := gotrx.GenerateSignature(gs, sita.longTerm.Priv, sita.longTerm.Pub, sita.longTerm.Pub, gs.key.Pub, spoint.Pub, t, gotrx.KdfPrekeyServer, usageAuth)
d3 := generateDake3(sita.instanceTag, sigma, []byte{})
c.Assert(d3.validate("[email protected]", gs), ErrorMatches, "incorrect message")
}
func (s *GenericServerSuite) Test_dake3Message_respond_shouldFailOnInvalidRingSignatureGeneration(c *C) {
stor := createInMemoryStorage()
serverKey := gotrx.DeriveKeypair([symKeyLength]byte{0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25, 0x25})
gs := &GenericServer{
identity: "masterOfKeys.example.org",
rand: gotrx.FixtureRand(),
key: serverKey,
fingerprint: serverKey.Pub.Fingerprint(),
storageImpl: stor,
sessions: newSessionManager(),
}
d1 := generateDake1(sita.instanceTag, sita.clientProfile, gs.key.Pub.K())
_, e := d1.respond("[email protected]", gs)
c.Assert(e, ErrorMatches, "invalid ring signature generation")
}