public void testBadSignedPreKeySignature()
{
AxolotlStore aliceStore = new TestInMemoryAxolotlStore();
SessionBuilder aliceSessionBuilder = new SessionBuilder(aliceStore, BOB_ADDRESS);
IdentityKeyStore bobIdentityKeyStore = new TestInMemoryIdentityKeyStore();
ECKeyPair bobPreKeyPair = Curve.generateKeyPair();
ECKeyPair bobSignedPreKeyPair = Curve.generateKeyPair();
byte[] bobSignedPreKeySignature = Curve.calculateSignature(bobIdentityKeyStore.GetIdentityKeyPair().getPrivateKey(),
bobSignedPreKeyPair.getPublicKey().serialize());
for (int i = 0; i < bobSignedPreKeySignature.Length * 8; i++)
{
byte[] modifiedSignature = new byte[bobSignedPreKeySignature.Length];
Array.Copy(bobSignedPreKeySignature, 0, modifiedSignature, 0, modifiedSignature.Length);
modifiedSignature[i / 8] ^= (byte)(0x01 << (i % 8));
PreKeyBundle bobPreKey = new PreKeyBundle(bobIdentityKeyStore.GetLocalRegistrationId(), 1,
31337, bobPreKeyPair.getPublicKey(),
22, bobSignedPreKeyPair.getPublicKey(), modifiedSignature,
bobIdentityKeyStore.GetIdentityKeyPair().getPublicKey());
try
{
aliceSessionBuilder.process(bobPreKey);
throw new Exception("Accepted modified device key signature!");
}
catch (InvalidKeyException ike)
{
// good
}
}
PreKeyBundle bobPreKey2 = new PreKeyBundle(bobIdentityKeyStore.GetLocalRegistrationId(), 1,
31337, bobPreKeyPair.getPublicKey(),
22, bobSignedPreKeyPair.getPublicKey(), bobSignedPreKeySignature,
bobIdentityKeyStore.GetIdentityKeyPair().getPublicKey());
aliceSessionBuilder.process(bobPreKey2);
}
public void testBadSignedPreKeySignature()
{
AxolotlStore aliceStore = new TestInMemoryAxolotlStore();
SessionBuilder aliceSessionBuilder = new SessionBuilder(aliceStore, BOB_ADDRESS);
IdentityKeyStore bobIdentityKeyStore = new TestInMemoryIdentityKeyStore();
ECKeyPair bobPreKeyPair = Curve.generateKeyPair();
ECKeyPair bobSignedPreKeyPair = Curve.generateKeyPair();
byte[] bobSignedPreKeySignature = Curve.calculateSignature(bobIdentityKeyStore.GetIdentityKeyPair().getPrivateKey(),
bobSignedPreKeyPair.getPublicKey().serialize());
for (int i = 0; i < bobSignedPreKeySignature.Length * 8; i++)
{
byte[] modifiedSignature = new byte[bobSignedPreKeySignature.Length];
Array.Copy(bobSignedPreKeySignature, 0, modifiedSignature, 0, modifiedSignature.Length);
modifiedSignature[i / 8] ^= (byte)(0x01 << (i % 8));
PreKeyBundle bobPreKey = new PreKeyBundle(bobIdentityKeyStore.GetLocalRegistrationId(), 1,
31337, bobPreKeyPair.getPublicKey(),
22, bobSignedPreKeyPair.getPublicKey(), modifiedSignature,
bobIdentityKeyStore.GetIdentityKeyPair().getPublicKey());
try
{
aliceSessionBuilder.process(bobPreKey);
throw new Exception("Accepted modified device key signature!");
}
catch (InvalidKeyException ike)
{
// good
}
}
PreKeyBundle bobPreKey2 = new PreKeyBundle(bobIdentityKeyStore.GetLocalRegistrationId(), 1,
31337, bobPreKeyPair.getPublicKey(),
22, bobSignedPreKeyPair.getPublicKey(), bobSignedPreKeySignature,
bobIdentityKeyStore.GetIdentityKeyPair().getPublicKey());
aliceSessionBuilder.process(bobPreKey2);
}