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Include stream number in stream header nonce.

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This commit is contained in:
akwizgran
2016-09-20 15:27:01 +01:00
parent 89ab4dd04e
commit 4be1c1bb7d
8 changed files with 96 additions and 82 deletions
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24
briar-tests/src/org/briarproject/crypto/StreamDecrypterImplTest.java
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@@ -22,22 +22,23 @@ public class StreamDecrypterImplTest extends BriarTestCase {
private final AuthenticatedCipher cipher;
private final SecretKey streamHeaderKey, frameKey;
private final byte[] streamHeaderIv;
private final byte[] streamHeaderIv, payload;
private final int payloadLength = 123, paddingLength = 234;
private final long streamNumber = 1234;
public StreamDecrypterImplTest() {
cipher = new TestAuthenticatedCipher(); // Null cipher
streamHeaderKey = TestUtils.getSecretKey();
frameKey = TestUtils.getSecretKey();
streamHeaderIv = TestUtils.getRandomBytes(STREAM_HEADER_IV_LENGTH);
payload = TestUtils.getRandomBytes(payloadLength);
}
@Test
public void testReadValidFrames() throws Exception {
byte[] frameHeader = new byte[FRAME_HEADER_LENGTH];
int payloadLength = 123, paddingLength = 234;
FrameEncoder.encodeHeader(frameHeader, false, payloadLength,
paddingLength);
byte[] payload = TestUtils.getRandomBytes(payloadLength);
byte[] frameHeader1 = new byte[FRAME_HEADER_LENGTH];
int payloadLength1 = 345, paddingLength1 = 456;
@@ -60,7 +61,7 @@ public class StreamDecrypterImplTest extends BriarTestCase {
ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
StreamDecrypterImpl s = new StreamDecrypterImpl(in, cipher,
streamHeaderKey);
streamNumber, streamHeaderKey);
// Read the first frame
byte[] buffer = new byte[MAX_PAYLOAD_LENGTH];
@@ -78,10 +79,9 @@ public class StreamDecrypterImplTest extends BriarTestCase {
@Test(expected = IOException.class)
public void testTruncatedFrameThrowsException() throws Exception {
byte[] frameHeader = new byte[FRAME_HEADER_LENGTH];
int payloadLength = 123, paddingLength = 234;
FrameEncoder.encodeHeader(frameHeader, false, payloadLength,
paddingLength);
byte[] payload = TestUtils.getRandomBytes(payloadLength);
ByteArrayOutputStream out = new ByteArrayOutputStream();
out.write(streamHeaderIv);
out.write(frameKey.getBytes());
@@ -93,7 +93,7 @@ public class StreamDecrypterImplTest extends BriarTestCase {
ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
StreamDecrypterImpl s = new StreamDecrypterImpl(in, cipher,
streamHeaderKey);
streamNumber, streamHeaderKey);
// Try to read the truncated frame
byte[] buffer = new byte[MAX_PAYLOAD_LENGTH];
@@ -121,7 +121,7 @@ public class StreamDecrypterImplTest extends BriarTestCase {
ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
StreamDecrypterImpl s = new StreamDecrypterImpl(in, cipher,
streamHeaderKey);
streamNumber, streamHeaderKey);
// Try to read the invalid frame
byte[] buffer = new byte[MAX_PAYLOAD_LENGTH];
@@ -131,10 +131,8 @@ public class StreamDecrypterImplTest extends BriarTestCase {
@Test(expected = IOException.class)
public void testNonZeroPaddingThrowsException() throws Exception {
byte[] frameHeader = new byte[FRAME_HEADER_LENGTH];
int payloadLength = 123, paddingLength = 234;
FrameEncoder.encodeHeader(frameHeader, false, payloadLength,
paddingLength);
byte[] payload = TestUtils.getRandomBytes(payloadLength);
// Set one of the padding bytes non-zero
byte[] padding = new byte[paddingLength];
padding[paddingLength - 1] = 1;
@@ -150,7 +148,7 @@ public class StreamDecrypterImplTest extends BriarTestCase {
ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
StreamDecrypterImpl s = new StreamDecrypterImpl(in, cipher,
streamHeaderKey);
streamNumber, streamHeaderKey);
// Try to read the invalid frame
byte[] buffer = new byte[MAX_PAYLOAD_LENGTH];
@@ -160,10 +158,8 @@ public class StreamDecrypterImplTest extends BriarTestCase {
@Test
public void testCannotReadBeyondFinalFrame() throws Exception {
byte[] frameHeader = new byte[FRAME_HEADER_LENGTH];
int payloadLength = 123, paddingLength = 234;
FrameEncoder.encodeHeader(frameHeader, true, payloadLength,
paddingLength);
byte[] payload = TestUtils.getRandomBytes(payloadLength);
ByteArrayOutputStream out = new ByteArrayOutputStream();
out.write(streamHeaderIv);
@@ -178,7 +174,7 @@ public class StreamDecrypterImplTest extends BriarTestCase {
ByteArrayInputStream in = new ByteArrayInputStream(out.toByteArray());
StreamDecrypterImpl s = new StreamDecrypterImpl(in, cipher,
streamHeaderKey);
streamNumber, streamHeaderKey);
// Read the first frame
byte[] buffer = new byte[MAX_PAYLOAD_LENGTH];