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Fixed return value of process().

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This commit is contained in:
akwizgran
2015-12-18 14:06:47 +00:00
parent fc897bd1b9
commit 73bb3b0065
3 changed files with 14 additions and 11 deletions
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16
briar-core/src/org/briarproject/crypto/AuthenticatedCipher.java
View File

@@ -26,14 +26,14 @@ interface AuthenticatedCipher {
* including the MAC.
* @param inputOff the offset into the input array where the data to be
* processed starts.
* @param len the number of bytes to be processed. If decrypting, includes
* the MAC length.
* @param output the output buffer the processed bytes go into. If
* encrypting, the ciphertext including the MAC. If
* decrypting, the plaintext.
* @param outputOff the offset into the output byte array the processed
* data starts at.
* @return the number of bytes processed.
* @param len the length of the input. If decrypting, includes the MAC
* length.
* @param output the output byte array. If encrypting, the ciphertext
* including the MAC. If decrypting, the plaintext.
* @param outputOff the offset into the output byte array where the
* processed data starts.
* @return the length of the output. If encrypting, includes the MAC
* length.
* @throws GeneralSecurityException on invalid input.
*/
int process(byte[] input, int inputOff, int len, byte[] output,

2
briar-core/src/org/briarproject/crypto/XSalsa20Poly1305AuthenticatedCipher.java
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@@ -112,7 +112,7 @@ public class XSalsa20Poly1305AuthenticatedCipher
poly1305.doFinal(output, outputOff);
}
return processed;
return encrypting ? processed + MAC_LENGTH : processed;
} catch (DataLengthException e) {
throw new GeneralSecurityException(e.getMessage());
}

7
briar-tests/src/org/briarproject/crypto/XSalsa20Poly1305AuthenticatedCipherTest.java
View File

@@ -9,6 +9,7 @@ import java.security.GeneralSecurityException;
import java.util.Random;
import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
public class XSalsa20Poly1305AuthenticatedCipherTest extends BriarTestCase {
@@ -51,7 +52,8 @@ public class XSalsa20Poly1305AuthenticatedCipherTest extends BriarTestCase {
AuthenticatedCipher cipher = new XSalsa20Poly1305AuthenticatedCipher();
cipher.init(true, k, TEST_IV);
byte[] output = new byte[TEST_CIPHERTEXT.length];
cipher.process(TEST_PLAINTEXT, 0, TEST_PLAINTEXT.length, output, 0);
assertEquals(TEST_CIPHERTEXT.length, cipher.process(TEST_PLAINTEXT, 0,
TEST_PLAINTEXT.length, output, 0));
assertArrayEquals(TEST_CIPHERTEXT, output);
}
@@ -61,7 +63,8 @@ public class XSalsa20Poly1305AuthenticatedCipherTest extends BriarTestCase {
AuthenticatedCipher cipher = new XSalsa20Poly1305AuthenticatedCipher();
cipher.init(false, k, TEST_IV);
byte[] output = new byte[TEST_PLAINTEXT.length];
cipher.process(TEST_CIPHERTEXT, 0, TEST_CIPHERTEXT.length, output, 0);
assertEquals(TEST_PLAINTEXT.length, cipher.process(TEST_CIPHERTEXT, 0,
TEST_CIPHERTEXT.length, output, 0));
assertArrayEquals(TEST_PLAINTEXT, output);
}