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Changed the root package from net.sf.briar to org.briarproject.

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akwizgran
2014-01-08 16:18:30 +00:00
parent dce70f487c
commit 832476412c
427 changed files with 2507 additions and 2507 deletions
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75
briar-tests/src/org/briarproject/crypto/KeyDerivationTest.java Normal file
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package org.briarproject.crypto;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Random;
import org.briarproject.BriarTestCase;
import org.briarproject.api.crypto.CryptoComponent;
import org.briarproject.api.crypto.SecretKey;
import org.junit.Test;
public class KeyDerivationTest extends BriarTestCase {
private final CryptoComponent crypto;
private final byte[] secret;
public KeyDerivationTest() {
crypto = new CryptoComponentImpl();
secret = new byte[32];
new Random().nextBytes(secret);
}
@Test
public void testKeysAreDistinct() {
List<SecretKey> keys = new ArrayList<SecretKey>();
keys.add(crypto.deriveFrameKey(secret, 0, false, false));
keys.add(crypto.deriveFrameKey(secret, 0, false, true));
keys.add(crypto.deriveFrameKey(secret, 0, true, false));
keys.add(crypto.deriveFrameKey(secret, 0, true, true));
keys.add(crypto.deriveTagKey(secret, true));
keys.add(crypto.deriveTagKey(secret, false));
for(int i = 0; i < 4; i++) {
byte[] keyI = keys.get(i).getEncoded();
for(int j = 0; j < 4; j++) {
byte[] keyJ = keys.get(j).getEncoded();
assertEquals(i == j, Arrays.equals(keyI, keyJ));
}
}
}
@Test
public void testSecretAffectsDerivation() {
Random r = new Random();
List<byte[]> secrets = new ArrayList<byte[]>();
for(int i = 0; i < 20; i++) {
byte[] b = new byte[32];
r.nextBytes(b);
secrets.add(crypto.deriveNextSecret(b, 0));
}
for(int i = 0; i < 20; i++) {
byte[] secretI = secrets.get(i);
for(int j = 0; j < 20; j++) {
byte[] secretJ = secrets.get(j);
assertEquals(i == j, Arrays.equals(secretI, secretJ));
}
}
}
@Test
public void testConnectionNumberAffectsDerivation() {
List<byte[]> secrets = new ArrayList<byte[]>();
for(int i = 0; i < 20; i++) {
secrets.add(crypto.deriveNextSecret(secret.clone(), i));
}
for(int i = 0; i < 20; i++) {
byte[] secretI = secrets.get(i);
for(int j = 0; j < 20; j++) {
byte[] secretJ = secrets.get(j);
assertEquals(i == j, Arrays.equals(secretI, secretJ));
}
}
}
}