Examples with ShortBufferException javax.crypto.ShortBufferException used on opensource projects

Example 11 with ShortBufferException

use of javax.crypto.ShortBufferException in project robovm by robovm.

the class myMac method testMac09.

/**
     * Test for <code>update</code> and <code>doFinal</code> methods
     * Assertion: throws IllegalStateException when Mac is not initialized
     * @throws Exception
     */
public void testMac09() throws Exception {
    if (!DEFSupported) {
        fail(NotSupportedMsg);
        return;
    }
    Mac[] macs = createMacs();
    assertNotNull("Mac objects were not created", macs);
    byte[] buf = new byte[10];
    ByteBuffer bBuf = ByteBuffer.wrap(buf, 0, 10);
    byte[] bb = { (byte) 1, (byte) 2, (byte) 3, (byte) 4, (byte) 5 };
    SecretKeySpec sks = new SecretKeySpec(bb, "SHA1");
    for (int i = 0; i < macs.length; i++) {
        try {
            macs[i].update((byte) 0);
            fail("IllegalStateException must be thrown");
        } catch (IllegalStateException e) {
        }
        try {
            macs[i].update(buf);
            fail("IllegalStateException must be thrown");
        } catch (IllegalStateException e) {
        }
        try {
            macs[i].update(buf, 0, 3);
            fail("IllegalStateException must be thrown");
        } catch (IllegalStateException e) {
        }
        try {
            macs[i].update(bBuf);
            fail("IllegalStateException must be thrown");
        } catch (IllegalStateException e) {
        }
        try {
            macs[i].doFinal();
            fail("IllegalStateException must be thrown");
        } catch (IllegalStateException e) {
        }
        try {
            macs[i].doFinal(new byte[10]);
            fail("IllegalStateException must be thrown");
        } catch (IllegalStateException e) {
        }
        try {
            macs[i].doFinal(new byte[10], 0);
            fail("IllegalStateException must be thrown");
        } catch (IllegalStateException e) {
        }
        macs[i].init(sks);
        try {
            macs[i].doFinal(new byte[1], 0);
            fail("ShortBufferException expected");
        } catch (ShortBufferException e) {
        //expected
        }
    }
}

Example 12 with ShortBufferException

use of javax.crypto.ShortBufferException in project robovm by robovm.

the class ECDHKeyAgreementTest method testGenerateSecret_withSmallerThanNeededBuffer.

void testGenerateSecret_withSmallerThanNeededBuffer(Provider provider) throws Exception {
    KeyAgreement keyAgreement = getKeyAgreement(provider);
    keyAgreement.init(KAT_PRIVATE_KEY1);
    keyAgreement.doPhase(KAT_PUBLIC_KEY2, true);
    try {
        // Although the buffer is big enough (1024 bytes) the shared secret should be placed
        // at offset 1020 thus leaving only 4 bytes for the secret, which is not enough.
        keyAgreement.generateSecret(new byte[1024], 1020);
        fail();
    } catch (ShortBufferException expected) {
    }
}

Example 13 with ShortBufferException

use of javax.crypto.ShortBufferException in project platform_frameworks_base by android.

the class AndroidKeyStoreCipherSpiBase method engineDoFinal.

@Override
protected final int engineDoFinal(ByteBuffer input, ByteBuffer output) throws ShortBufferException, IllegalBlockSizeException, BadPaddingException {
    if (input == null) {
        throw new NullPointerException("input == null");
    }
    if (output == null) {
        throw new NullPointerException("output == null");
    }
    int inputSize = input.remaining();
    byte[] outputArray;
    if (input.hasArray()) {
        outputArray = engineDoFinal(input.array(), input.arrayOffset() + input.position(), inputSize);
        input.position(input.position() + inputSize);
    } else {
        byte[] inputArray = new byte[inputSize];
        input.get(inputArray);
        outputArray = engineDoFinal(inputArray, 0, inputSize);
    }
    int outputSize = (outputArray != null) ? outputArray.length : 0;
    if (outputSize > 0) {
        int outputBufferAvailable = output.remaining();
        try {
            output.put(outputArray);
        } catch (BufferOverflowException e) {
            throw new ShortBufferException("Output buffer too small. Produced: " + outputSize + ", available: " + outputBufferAvailable);
        }
    }
    return outputSize;
}

Example 14 with ShortBufferException

use of javax.crypto.ShortBufferException in project cassandra by apache.

the class EncryptionUtils method encryptAndWrite.

/**
     * Encrypt the input data, and writes out to the same input buffer; if the buffer is not big enough,
     * deallocate current, and allocate a large enough buffer.
     * Writes the cipher text and headers out to the channel, as well.
     *
     * Note: channel is a parameter as we cannot write header info to the output buffer as we assume the input and output
     * buffers can be the same buffer (and writing the headers to a shared buffer will corrupt any input data). Hence,
     * we write out the headers directly to the channel, and then the cipher text (once encrypted).
     */
public static ByteBuffer encryptAndWrite(ByteBuffer inputBuffer, WritableByteChannel channel, boolean allowBufferResize, Cipher cipher) throws IOException {
    final int plainTextLength = inputBuffer.remaining();
    final int encryptLength = cipher.getOutputSize(plainTextLength);
    ByteBuffer outputBuffer = inputBuffer.duplicate();
    outputBuffer = ByteBufferUtil.ensureCapacity(outputBuffer, encryptLength, allowBufferResize);
    // it's unfortunate that we need to allocate a small buffer here just for the headers, but if we reuse the input buffer
    // for the output, then we would overwrite the first n bytes of the real data with the header data.
    ByteBuffer intBuf = ByteBuffer.allocate(ENCRYPTED_BLOCK_HEADER_SIZE);
    intBuf.putInt(0, encryptLength);
    intBuf.putInt(4, plainTextLength);
    channel.write(intBuf);
    try {
        cipher.doFinal(inputBuffer, outputBuffer);
    } catch (ShortBufferException | IllegalBlockSizeException | BadPaddingException e) {
        throw new IOException("failed to encrypt commit log block", e);
    }
    outputBuffer.position(0).limit(encryptLength);
    channel.write(outputBuffer);
    outputBuffer.position(0).limit(encryptLength);
    return outputBuffer;
}

Example 15 with ShortBufferException

use of javax.crypto.ShortBufferException in project wycheproof by google.

the class AesGcmTest method testByteBufferTooShort.

public void testByteBufferTooShort() throws Exception {
    for (GcmTestVector test : getTestVectors()) {
        // Encryption
        Cipher cipher = Cipher.getInstance("AES/GCM/NoPadding");
        ByteBuffer ptBuffer = ByteBuffer.wrap(test.pt);
        ByteBuffer ctBuffer = ByteBuffer.allocate(test.ct.length - 1);
        cipher.init(Cipher.ENCRYPT_MODE, test.key, test.parameters);
        cipher.updateAAD(test.aad);
        try {
            cipher.doFinal(ptBuffer, ctBuffer);
            fail("This should not work");
        } catch (ShortBufferException ex) {
        // expected
        }
        // Decryption
        ctBuffer = ByteBuffer.wrap(test.ct);
        ByteBuffer decrypted = ByteBuffer.allocate(test.pt.length - 1);
        cipher.init(Cipher.DECRYPT_MODE, test.key, test.parameters);
        cipher.updateAAD(test.aad);
        try {
            cipher.doFinal(ctBuffer, decrypted);
            fail("This should not work");
        } catch (ShortBufferException ex) {
        // expected
        }
    }
}