Example usage for java.security MessageDigest digest

Introduction

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

Prototype

public byte[] digest(byte[] input)

Source Link

Document

Performs a final update on the digest using the specified array of bytes, then completes the digest computation.

Usage

From source file:Main.java

public static String toMD5(String md5) {
    try {//from  ww  w  .j a  v  a2  s  .c o  m
        java.security.MessageDigest md = java.security.MessageDigest.getInstance("MD5");
        byte[] array = md.digest(md5.getBytes());
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < array.length; ++i) {
            sb.append(Integer.toHexString((array[i] & 0xFF) | 0x100).substring(1, 3));
        }
        return sb.toString();
    } catch (java.security.NoSuchAlgorithmException e) {
    }
    return null;
}

From source file:Main.java

public static String generate(String s) {
    try {/*from w  w  w  .j  a  va  2  s.  c om*/
        MessageDigest messageDigest = MessageDigest.getInstance("MD5");
        byte[] digest = messageDigest.digest(s.getBytes());
        StringBuilder md5 = new StringBuilder();
        for (byte value : digest) {
            md5.append(Integer.toHexString((value & 0xFF) | 0x100).substring(1, 3));
        }
        return md5.toString();
    } catch (NoSuchAlgorithmException e) {
        return null;
    }
}

From source file:Main.java

public static String getMd5String(String md5) {
    try {/*from   ww  w.j  a  va2  s.c  o  m*/
        java.security.MessageDigest md = java.security.MessageDigest.getInstance("MD5");
        byte[] array = md.digest(md5.getBytes());
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < array.length; ++i) {
            sb.append(Integer.toHexString((array[i] & 0xFF) | 0x100).substring(1, 3));
        }
        return sb.toString();
    } catch (java.security.NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

public final synchronized static byte[] md5(byte[] buff) throws NoSuchAlgorithmException {
    MessageDigest md5Obj = MessageDigest.getInstance("MD5");
    md5Obj.reset();/*from   ww w  .ja v a2 s  .co  m*/
    return md5Obj.digest(buff);
}

From source file:Main.java

public static void encrypt(String fileIn, String fileOut, byte key[])
        throws IOException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException {
    // Here you read the cleartext.
    FileInputStream fis = new FileInputStream(fileIn);
    // This stream write the encrypted text. This stream will be wrapped by another stream.
    FileOutputStream fos = new FileOutputStream(fileOut);

    // Length is 32 bytes
    //byte key[] = "1010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100000011010110101010101010100101111001001001001001001011110111100001111000011".getBytes("UTF-8");
    MessageDigest sha = MessageDigest.getInstance("SHA-256");
    key = sha.digest(key);
    SecretKeySpec sks = new SecretKeySpec(key, "AES");
    // Create cipher
    Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.ENCRYPT_MODE, sks);
    // Wrap the output stream
    CipherOutputStream cos = new CipherOutputStream(fos, cipher);
    // Write bytes
    int b;//from www  . jav  a2 s.com
    byte[] d = new byte[8];
    while ((b = fis.read(d)) != -1) {
        cos.write(d, 0, b);
    }
    // Flush and close streams.
    cos.flush();
    cos.close();
    fis.close();
}

From source file:com.skilrock.lms.common.utility.MD5Encoder.java

public static String encode(String value) {

    try {//from  ww  w .  j a va 2s .  c o  m

        MessageDigest md5 = MessageDigest.getInstance("MD5");
        byte[] hashMD5 = md5.digest(value.getBytes());
        return (new BASE64Encoder()).encode(hashMD5);

    } catch (NoSuchAlgorithmException e) {

        e.printStackTrace();
    }

    return null;
}

From source file:ch.windmobile.server.social.mongodb.util.AuthenticationServiceUtil.java

public static boolean validateSHA1(String email, Object password, String base64)
        throws NoSuchAlgorithmException {
    if (password == null) {
        throw new IllegalArgumentException("password cannot be null");
    }//  w w  w  .j a va 2  s.c  o m
    MessageDigest md = MessageDigest.getInstance("SHA1");
    String base = email + ":" + password.toString();
    byte[] result = md.digest(base.getBytes());
    byte[] data = Base64.decode(base64.getBytes());
    return MessageDigest.isEqual(data, result);
}

From source file:Main.java

private static String computeHash(String input) throws NoSuchAlgorithmException, UnsupportedEncodingException {
    MessageDigest digest = MessageDigest.getInstance("SHA-256");
    digest.reset();/* w w  w . jav  a2 s  . co m*/

    byte[] byteData = digest.digest(input.getBytes("UTF-8"));
    StringBuffer sb = new StringBuffer();

    for (int i = 0; i < byteData.length; i++) {
        sb.append(Integer.toString((byteData[i] & 0xff) + 0x100, 16).substring(1));
    }

    return sb.toString();
}

From source file:Main.java

public static String hashBytes(byte[] input, String algo) {
    try {/*from  ww  w.java2  s  .com*/
        MessageDigest md = MessageDigest.getInstance(algo);
        byte[] hashBytes = md.digest(input);
        String hash = toHexString(hashBytes);

        md.reset();
        return hash;
    } catch (NoSuchAlgorithmException e) {
        Log.e("FDroid", "Device does not support " + algo + " MessageDisgest algorithm");
        return null;
    }
}

From source file:Main.java

public static String generateMarvelHash(String publicKey, String privateKey) {

    String marvelHash = "";

    try {/*from  ww w  .  ja  va  2  s .c  o m*/
        String timeStamp = getUnixTimeStamp();
        String marvelData = timeStamp + privateKey + publicKey;

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

        StringBuilder stringBuilder = new StringBuilder(2 * hash.length);

        for (byte b : hash)
            stringBuilder.append(String.format("%02x", b & 0xff));

        marvelHash = stringBuilder.toString();

    } catch (NoSuchAlgorithmException e) {

        System.out.println("[DEBUG]" + " MarvelApiUtils generateMarvelHash - " + "NoSuchAlgorithmException");
    }

    return marvelHash;
}