Example usage for java.security MessageDigest getInstance

Introduction

In this page you can find the example usage for java.security MessageDigest getInstance.

Prototype

public static MessageDigest getInstance(String algorithm) throws NoSuchAlgorithmException

Source Link

Document

Returns a MessageDigest object that implements the specified digest algorithm.

Usage

From source file:com.linkedin.databus2.schemas.utils.Utils.java

public static byte[] md5(byte[] bytes) {
    try {/*from w ww . jav a 2  s .c om*/
        MessageDigest digest = MessageDigest.getInstance("md5");
        return digest.digest(bytes);
    } catch (NoSuchAlgorithmException e) {
        throw new IllegalStateException("This can't happen.", e);
    }
}

From source file:com.constellio.app.modules.es.connectors.http.utils.DigestUtil.java

public static String digest(final byte[] content) throws NoSuchAlgorithmException {
    MessageDigest shaDigester = MessageDigest.getInstance("SHA");
    shaDigester.update(content);//from w w w.jav a  2 s .  c  om
    byte[] shaDigest = shaDigester.digest();
    String digestString = new String(Base64.encodeBase64(shaDigest));

    return digestString;
}

From source file:com.intuit.tank.vm.common.PasswordEncoder.java

/**
 * Encodes the password using SHA-1 algorithm.
 * /*w  ww  .j  av a 2  s . co  m*/
 * @param password
 *            the password to encode
 * @return a base64 encoded has of the password.
 */
public static final String encodePassword(String password) {
    try {
        byte[] digest = MessageDigest.getInstance(DEFAULT_ALGORITHM).digest(password.getBytes());
        return new String(Base64.encodeBase64(digest));
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    }
}

From source file:com.eschava.forevernote.EvernoteUtil.java

public static Resource createResource(InputStream stream, String contentType) throws IOException {
    try {// w w w. j  a  v a2  s  .co  m
        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
        FileCopyUtils.copy(stream, outputStream);
        byte[] bytes = outputStream.toByteArray();

        MessageDigest messageDigest = MessageDigest.getInstance("MD5");
        byte[] hash = messageDigest.digest(bytes);

        Data data = new Data();
        data.setBody(bytes);
        data.setBodyHash(hash);

        Resource resource = new Resource();
        resource.setMime(contentType);
        resource.setData(data);

        return resource;
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e); // is not possible
    }
}

From source file:Main.java

public static byte[] generateCramMD5HexClientResponse(String userName, String userPassword,
        byte[] challengeBytes) throws Exception {
    String macAlgorithm = "HmacMD5";
    byte[] digestedPasswordBytes = MessageDigest.getInstance("MD5").digest(userPassword.getBytes("UTF-8"));
    byte[] hexEncodedDigestedPasswordBytes = toHex(digestedPasswordBytes).getBytes("UTF-8");
    Mac mac = Mac.getInstance(macAlgorithm);
    mac.init(new SecretKeySpec(hexEncodedDigestedPasswordBytes, macAlgorithm));
    final byte[] messageAuthenticationCode = mac.doFinal(challengeBytes);
    String responseAsString = userName + " " + toHex(messageAuthenticationCode);
    return responseAsString.getBytes();
}

From source file:com.likya.tlos.utils.PasswordService.java

public static synchronized String encrypt(String plaintext) throws Exception {
    MessageDigest md = null;//from  ww w . jav  a  2  s.c om
    try {
        md = MessageDigest.getInstance("SHA"); // step 2 //$NON-NLS-1$
    } catch (NoSuchAlgorithmException e) {
        throw new Exception(e.getMessage());
    }
    try {
        md.update(plaintext.getBytes("UTF-8")); // step 3 //$NON-NLS-1$
    } catch (UnsupportedEncodingException e) {
        throw new Exception(e.getMessage());
    }
    byte raw[] = md.digest(); // step 4

    /**
     * Sun uygulamasndan vazgeilip apache uygulamas kullanld
     * 16.03.2011 
     * 
     */
    // String hash = (new BASE64Encoder()).encode(raw); // step 5

    String hash = Base64.encodeBase64String(raw);

    return hash; // step 6
}

From source file:EncryptUtil.java

/**
 * Encode a string using algorithm specified in web.xml and return the
 * resulting encrypted password. If exception, the plain credentials string
 * is returned//from w w  w .  j a v a 2s  . co m
 * 
 * @param password
 *            Password or other credentials to use in authenticating this
 *            username
 * @param algorithm
 *            Algorithm used to do the digest
 * @return encypted password based on the algorithm.
 */
public static String encode(String password, String algorithm) {
    byte[] unencodedPassword = password.getBytes();

    MessageDigest md = null;

    try {
        // first create an instance, given the provider
        md = MessageDigest.getInstance(algorithm);
    } catch (Exception e) {
        //logger.error("Exception:{}", e);
        return password;
    }

    md.reset();

    // call the update method one or more times
    // (useful when you don't know the size of your data, eg. stream)
    md.update(unencodedPassword);

    // now calculate the hash
    byte[] encodedPassword = md.digest();

    StringBuilder buf = new StringBuilder();

    for (int i = 0; i < encodedPassword.length; i++) {
        if ((encodedPassword[i] & 0xff) < 0x10) {
            buf.append("0");
        }

        buf.append(Long.toString(encodedPassword[i] & 0xff, 16));
    }

    return buf.toString();
}

From source file:cn.edu.bit.whitesail.utils.MD5Signature.java

public static String calculate(byte[] byteArray) {
    StringBuffer result = null;//from  w ww .  jav a 2s.  c  o m
    if (byteArray == null)
        return null;
    try {
        MessageDigest m = MessageDigest.getInstance("MD5");
        m.update(byteArray);
        result = new StringBuffer(new BigInteger(1, m.digest()).toString(16));
        for (int i = 0; i < 32 - result.length(); i++)
            result.insert(0, '0');
    } catch (NoSuchAlgorithmException ex) {
        LOG.fatal("MD5 Hashing Failed,System is going down");
        System.exit(1);
    }
    return result.toString();
}

From source file:Main.java

/**
 * Get current certificate fingerprint/*www  . j a  v  a  2 s . c  om*/
 *
 * @param ctx         context of application
 * @param packageName your package name
 * @return Base64 packed SHA fingerprint of your packet certificate
 */
public static String[] getCertificateFingerprint(Context ctx, String packageName) {
    try {
        if (ctx == null || ctx.getPackageManager() == null)
            return null;
        @SuppressLint("PackageManagerGetSignatures")
        PackageInfo info = ctx.getPackageManager().getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
        assert info.signatures != null;
        String[] result = new String[info.signatures.length];
        int i = 0;
        for (Signature signature : info.signatures) {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            result[i++] = toHex(md.digest());
        }
        return result;
    } catch (Exception e) {
        return null;
    }
}

From source file:Main.java

/**
 * Generate the SHA1 hash of a message /* w w w. ja va 2  s.  co  m*/
 * @param message
 * @return
 * @throws NoSuchAlgorithmException
 * @throws UnsupportedEncodingException
 */
public static byte[] SHA1(byte[] message) throws NoSuchAlgorithmException, UnsupportedEncodingException {
    MessageDigest md;
    md = MessageDigest.getInstance("SHA-1");
    md.update(message);
    return md.digest();
}