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:net.firejack.aws.license.LicenseHelper.java

private static void signature(License license) throws UnsupportedEncodingException, NoSuchAlgorithmException {
    StringBuilder builder = new StringBuilder();
    builder.append(license.getExpired()).append(license.getName()).append(license.getSession());
    byte[] bytes = builder.toString().getBytes("UTF-8");

    for (int i = 0; i < bytes.length; i += 2)
        bytes[i] += i;//from w  ww  .jav  a 2s  . c  o m

    MessageDigest digest = MessageDigest.getInstance("MD5");
    license.setSignature(new String(Base64.encodeBase64(digest.digest(bytes))));
}

From source file:ID.java

public static byte[] getMD5Bytes(String content) {
    try {//from w w  w.  j a v a  2 s  .  co m
        MessageDigest digest = MessageDigest.getInstance("MD5");
        return digest.digest(content.getBytes("UTF-8"));
    } catch (NoSuchAlgorithmException e) {
        throw new IllegalStateException(e);
    } catch (java.io.UnsupportedEncodingException uee) {
        throw new IllegalStateException(uee);
    }
}

From source file:Main.java

public static String MD5(String md5) {
    try {/*from  w  w  w. jav  a2 s . c o  m*/
        java.security.MessageDigest md = java.security.MessageDigest.getInstance("MD5");
        byte[] array;
        try {
            array = md.digest(md5.getBytes("UTF-8"));
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
            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 generateDeviceUUID(Context context) {
    String serial = android.os.Build.SERIAL;
    String androidID = Settings.Secure.ANDROID_ID;
    String deviceUUID = serial + androidID;

    /*//w ww  .  j  a  va 2  s. com
     * SHA-1
     */
    MessageDigest digest;
    byte[] result;
    try {
        digest = MessageDigest.getInstance("SHA-1");
        result = digest.digest(deviceUUID.getBytes("UTF-8"));
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }

    StringBuilder sb = new StringBuilder();
    for (byte b : result) {
        sb.append(String.format("%02X", b));
    }

    return sb.toString();
}

From source file:com.ai.bss.util.user.DigestUtils.java

/**
 * Calculate the MD5 hash for a given string.
 *
 * @param text The string to calculate the hash for
 * @return The hex representation of the hash value
 *///from  www .j av  a2  s  .c  om
public static String md5(String text) {
    Assert.notNull(text);
    try {
        MessageDigest md = MessageDigest.getInstance("MD5");
        return hex(md.digest(text.getBytes()));
    } catch (NoSuchAlgorithmException ex) {
        throw new IllegalStateException(
                "Unable to calculate hash. No MD5 hasher available in this Java implementation", ex);
    }
}

From source file:dk.teachus.backend.dao.hibernate.PasswordUserType.java

public static String sha1(String message) throws NoSuchAlgorithmException, UnsupportedEncodingException {
    MessageDigest md = MessageDigest.getInstance("SHA-1");
    return hex(md.digest(message.getBytes("CP1252")));
}

From source file:com.juicioenlinea.application.secutiry.Security.java

public static String encriptar(String texto) {

    final String secretKey = "hunter"; //llave para encriptar datos
    String encryptedString = null;

    try {// ww  w. ja  v  a  2 s  . c  o m

        MessageDigest md = MessageDigest.getInstance("SHA");
        byte[] digestOfPassword = md.digest(secretKey.getBytes("UTF-8"));
        byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);

        SecretKey key = new SecretKeySpec(keyBytes, "DESede");
        Cipher cipher = Cipher.getInstance("DESede");
        cipher.init(Cipher.ENCRYPT_MODE, key);

        byte[] plainTextBytes = texto.getBytes("UTF-8");
        byte[] buf = cipher.doFinal(plainTextBytes);
        byte[] base64Bytes = Base64.encodeBase64(buf);
        encryptedString = new String(base64Bytes);

    } catch (NoSuchAlgorithmException | UnsupportedEncodingException | NoSuchPaddingException
            | InvalidKeyException | IllegalBlockSizeException | BadPaddingException ex) {
        Logger.getLogger(Security.class.getName()).log(Level.SEVERE, null, ex);
    }
    return encryptedString;
}

From source file:com.juicioenlinea.application.secutiry.Security.java

public static String desencriptar(String textoEncriptado) {

    final String secretKey = "hunter"; //llave para encriptar datos
    String encryptedString = null;

    try {/* w  w w.ja v a 2s. c om*/
        byte[] message = Base64.decodeBase64(textoEncriptado.getBytes("UTF-8"));
        MessageDigest md = MessageDigest.getInstance("SHA");
        byte[] digestOfPassword = md.digest(secretKey.getBytes("UTF-8"));
        byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
        SecretKey key = new SecretKeySpec(keyBytes, "DESede");

        Cipher decipher = Cipher.getInstance("DESede");
        decipher.init(Cipher.DECRYPT_MODE, key);

        byte[] plainText = decipher.doFinal(message);

        encryptedString = new String(plainText, "UTF-8");

    } catch (UnsupportedEncodingException | InvalidKeyException | NoSuchAlgorithmException
            | NoSuchPaddingException | IllegalBlockSizeException | BadPaddingException ex) {
        Logger.getLogger(Security.class.getName()).log(Level.SEVERE, null, ex);
    }

    return encryptedString;
}

From source file:controlpac.EncryptHelper.java

public static String Encriptar(String texto) {
    String base64EncryptedString = "";
    try {//from  ww  w. java 2  s  .co  m
        MessageDigest md = MessageDigest.getInstance("MD5"); //Crea un hash con la clave elegida
        byte[] digestOfPassword = md.digest(secretKey.getBytes("utf-8"));
        byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
        SecretKey key = new SecretKeySpec(keyBytes, "DESede"); //Crea la clave
        Cipher cipher = Cipher.getInstance("DESede");
        cipher.init(Cipher.ENCRYPT_MODE, key);//Inicializa el cifrado con la clave
        byte[] plainTextBytes = texto.getBytes("utf-8");
        byte[] buf = cipher.doFinal(plainTextBytes);//Cifra el texto
        byte[] base64Bytes = Base64.encodeBase64(buf);//Encodea el texto en base64
        base64EncryptedString = new String(base64Bytes);
    } catch (Exception ex) {
    }
    return base64EncryptedString;
}

From source file:com.ai.bss.util.user.DigestUtils.java

/**
 * Calculate the SHA1 hash for a given string.
 *
 * @param text the given text to hash to a SHA1
 * @return the SHA1 Hash//  w w  w. j a va 2s .com
 */
public static String sha1(String text) {
    Assert.notNull(text);
    try {
        MessageDigest md = MessageDigest.getInstance("SHA1");
        return hex(md.digest(text.getBytes("UTF-8")));
    } catch (NoSuchAlgorithmException ex) {
        throw new IllegalStateException(
                "Unable to calculate hash. No SHA1 hasher available in this Java implementation", ex);
    } catch (UnsupportedEncodingException ex) {
        throw new IllegalStateException(
                "Unable to calculate hash. UTF-8 encoding is not available in this Java implementation", ex);
    }
}