Examples with MessageDigest java.security.MessageDigest used on opensource projects

Example 56 with MessageDigest

use of java.security.MessageDigest in project buck by facebook.

the class Dex method computeSignature.

/**
     * Returns the signature of all but the first 32 bytes of this dex. The
     * first 32 bytes of dex files are not specified to be included in the
     * signature.
     */
public byte[] computeSignature() throws IOException {
    MessageDigest digest;
    try {
        digest = MessageDigest.getInstance("SHA-1");
    } catch (NoSuchAlgorithmException e) {
        throw new AssertionError();
    }
    byte[] buffer = new byte[8192];
    // positioned ByteBuffers aren't thread safe
    ByteBuffer data = this.data.duplicate();
    data.limit(data.capacity());
    data.position(SIGNATURE_OFFSET + SIGNATURE_SIZE);
    while (data.hasRemaining()) {
        int count = Math.min(buffer.length, data.remaining());
        data.get(buffer, 0, count);
        digest.update(buffer, 0, count);
    }
    return digest.digest();
}

Example 57 with MessageDigest

use of java.security.MessageDigest in project glide by bumptech.

the class EngineKeyTest method testDiffersIfSignatureDiffers.

@Test
public void testDiffersIfSignatureDiffers() throws UnsupportedEncodingException, NoSuchAlgorithmException {
    EngineKey first = harness.build();
    Key signature = mock(Key.class);
    doAnswer(new Answer<Void>() {

        @Override
        public Void answer(InvocationOnMock invocationOnMock) throws Throwable {
            MessageDigest digest = (MessageDigest) invocationOnMock.getArguments()[0];
            digest.update("signature".getBytes("UTF-8"));
            return null;
        }
    }).when(signature).updateDiskCacheKey(any(MessageDigest.class));
    harness.signature = signature;
    EngineKey second = harness.build();
    KeyAssertions.assertDifferent(first, second, false);
}

Example 58 with MessageDigest

use of java.security.MessageDigest in project RPlay by bencall.

the class RTSPResponder method md5Hash.

/**
	 * Generates md5 hash of a string.
	 * @param plaintext string
	 * @return hash string
	 */
public String md5Hash(String plaintext) {
    String hashtext = "";
    try {
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(plaintext.getBytes());
        byte[] digest = md.digest();
        BigInteger bigInt = new BigInteger(1, digest);
        hashtext = bigInt.toString(16);
        // Now we need to zero pad it if you actually want the full 32 chars.
        while (hashtext.length() < 32) {
            hashtext = "0" + hashtext;
        }
    } catch (java.security.NoSuchAlgorithmException e) {
    //
    }
    return hashtext;
}

Example 59 with MessageDigest

use of java.security.MessageDigest in project spring-security-oauth by spring-projects.

the class DefaultAuthenticationKeyGenerator method generateKey.

protected String generateKey(Map<String, String> values) {
    MessageDigest digest;
    try {
        digest = MessageDigest.getInstance("MD5");
        byte[] bytes = digest.digest(values.toString().getBytes("UTF-8"));
        return String.format("%032x", new BigInteger(1, bytes));
    } catch (NoSuchAlgorithmException nsae) {
        throw new IllegalStateException("MD5 algorithm not available.  Fatal (should be in the JDK).", nsae);
    } catch (UnsupportedEncodingException uee) {
        throw new IllegalStateException("UTF-8 encoding not available.  Fatal (should be in the JDK).", uee);
    }
}

Example 60 with MessageDigest

use of java.security.MessageDigest in project binnavi by google.

the class FileUtils method calcMD5.

/**
   * Calculates the MD5 value of a file.
   *
   * @param file The file in question.
   * @return A string that holds the MD5 sum of the file.
   *
   * @throws IOException
   */
public static String calcMD5(final File file) throws IOException {
    // TODO: This method read the entire file in RAM. Make it iterative and
    // use a BufferedReader
    final FileInputStream reader = new FileInputStream(file);
    final byte[] data = new byte[(int) file.length()];
    reader.read(data);
    reader.close();
    final MessageDigest md;
    try {
        md = MessageDigest.getInstance("MD5");
    } catch (final NoSuchAlgorithmException e) {
        assert false : "MD5 not in list of algorithms";
        throw new RuntimeException(e);
    }
    md.update(data);
    final byte[] digest = md.digest();
    final StringBuilder md5 = new StringBuilder();
    for (final byte b : digest) {
        md5.append(String.format("%02X", b));
    }
    return md5.toString();
}