Example usage for javax.crypto.spec SecretKeySpec SecretKeySpec

Introduction

In this page you can find the example usage for javax.crypto.spec SecretKeySpec SecretKeySpec.

Prototype

public SecretKeySpec(byte[] key, String algorithm)

Source Link

Document

Constructs a secret key from the given byte array.

Usage

From source file:com.searchcode.app.util.AESEncryptor.java

public byte[] encrypt(byte[] plainText) throws Exception {
    SecretKeySpec secretKey = new SecretKeySpec(this.key, this.ALGORITHM);
    Cipher cipher = Cipher.getInstance(this.ALGORITHM);
    cipher.init(Cipher.ENCRYPT_MODE, secretKey);

    return cipher.doFinal(plainText);
}

From source file:com.hp.application.automation.tools.EncryptionUtils.java

public static String Encrypt(String text, String key) throws Exception {

    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
    byte[] keyBytes = new byte[16];
    byte[] b = key.getBytes("UTF-8");
    int len = b.length;
    if (len > keyBytes.length)
        len = keyBytes.length;/*from w  ww  .  ja va 2s .c o m*/
    System.arraycopy(b, 0, keyBytes, 0, len);
    SecretKeySpec keySpec = new SecretKeySpec(keyBytes, "AES");
    IvParameterSpec ivSpec = new IvParameterSpec(keyBytes);
    cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec);
    byte[] results = cipher.doFinal(text.getBytes("UTF-8"));

    return Base64.encodeBase64String(results);
}

From source file:com.android.pwdhashandroid.sharp2java.HMACMD5.java

private void init(byte[] key) throws GeneralSecurityException {
    sk = new SecretKeySpec(key, HMAC_MD5_NAME);
    mac = Mac.getInstance(HMAC_MD5_NAME);
    mac.init(sk);/*from w w  w  .j  a  v a  2s  .  c  o  m*/
}

From source file:com.aast.encrypt.EncryptManager.java

public static String decryptAES(String key, String encrypted) {
    try {//from   w w w.  j  a  va 2  s  .  c  o m
        byte[] keyBytes = getKeyFromString(key);
        IvParameterSpec iv = new IvParameterSpec(keyBytes);
        SecretKeySpec skeySpec = new SecretKeySpec(keyBytes, "AES");

        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
        cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);

        byte[] original = cipher.doFinal(Base64.decodeBase64(encrypted));

        return new String(original);
    } catch (Exception ex) {
        ex.printStackTrace();
    }

    return null;
}

From source file:com.formatAdmin.utils.UtilsSecurity.java

public static String decifrarMD5(String textoEncriptado) throws Exception {
    String base64EncryptedString = "";

    try {//from w ww  .  j  a  v a 2  s  .  c  o  m
        byte[] message = Base64.decodeBase64(textoEncriptado.getBytes("utf-8"));
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] digestOfPassword = md.digest(SECRET_MD5_KEY.getBytes("utf-8"));
        byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
        SecretKey key = new SecretKeySpec(keyBytes, ENCRYPT_ALGORITHM);

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

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

        base64EncryptedString = new String(plainText, "UTF-8");

    } catch (UnsupportedEncodingException | InvalidKeyException | NoSuchAlgorithmException | BadPaddingException
            | IllegalBlockSizeException | NoSuchPaddingException ex) {
        throw ex;
    }
    return base64EncryptedString;
}

From source file:oauth.signpost.signature.HmacSha1MessageSigner.java

@Override
public String sign(HttpRequest request, Map<String, String> oauthParameters)
        throws OAuthMessageSignerException {
    try {//from www  .  ja  v  a2  s .c o m
        String keyString = OAuth.percentEncode(getConsumerSecret()) + '&'
                + OAuth.percentEncode(getTokenSecret());
        byte[] keyBytes = keyString.getBytes(OAuth.ENCODING);

        SecretKey key = new SecretKeySpec(keyBytes, MAC_NAME);
        Mac mac = Mac.getInstance(MAC_NAME);
        mac.init(key);

        String sbs = computeSignatureBaseString(request, oauthParameters);
        byte[] text = sbs.getBytes(OAuth.ENCODING);

        return base64Encode(mac.doFinal(text));
    } catch (GeneralSecurityException e) {
        throw new OAuthMessageSignerException(e);
    } catch (UnsupportedEncodingException e) {
        throw new OAuthMessageSignerException(e);
    }
}

From source file:com.bconomy.autobit.Encryption.java

public static byte[] encrypt(byte[] cleartext, byte[] key) {
    if (keySpec == null)
        keySpec = new SecretKeySpec(key, "AES");
    Cipher aes;// w  ww . ja  v  a  2s  .com
    try {
        aes = Cipher.getInstance("AES/ECB/PKCS5Padding");
        aes.init(Cipher.ENCRYPT_MODE, keySpec);
        return aes.doFinal(cleartext);
    } catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException | IllegalBlockSizeException
            | BadPaddingException ex) {
        ex.printStackTrace();
    }
    return new byte[0];
}

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 {//from   ww  w.  j  a v a2 s. 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:edu.wright.cs.sp16.ceg3120.util.PasswordEncryptionUtility.java

/**
 * Decrypts a given string using AES.//from  w  ww. j  a v  a  2s . com
 * 
 * @param encrypted
 *            // Encrypted string.
 * @return // Returns decrypted string.
 */
public static String decrypt(String encrypted) {
    try {
        IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
        SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");

        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
        cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);

        byte[] original = cipher.doFinal(Base64.decodeBase64(encrypted));
        System.out.println("Decrypted Password: " + new String(original, "UTF-8"));
        return new String(original, "UTF-8");
    } catch (RuntimeException e) {
        throw e;
    } catch (Exception ex) {
        ex.printStackTrace();
    }

    return null;
}

From source file:enc_mods.aes.java

public void setKey() {
    try {//from   w w w.j a v  a  2  s .  c  om
        KeyGenerator kgen = KeyGenerator.getInstance("AES");
        kgen.init(AES_Key_Size);
        SecretKey aeskey = kgen.generateKey();
        key = aeskey.getEncoded();
        secretkey = new SecretKeySpec(key, "AES");
    } catch (Exception e) {
        e.printStackTrace();
    }
}