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:Main.java

public static byte[] hmacSha1(String key, String value)
        throws UnsupportedEncodingException, NoSuchAlgorithmException, InvalidKeyException {
    String type = "HmacSHA1";
    SecretKeySpec secret = new SecretKeySpec(key.getBytes(), type);
    Mac mac = Mac.getInstance(type);
    mac.init(secret);//from  w  ww.  ja va  2 s  .  c  om
    return mac.doFinal(value.getBytes());
}

From source file:Main.java

private static byte[] encryptHMAC(String data, String secret) throws IOException {
    byte[] bytes = null;
    try {/*from w  ww . j a  va 2 s . c o  m*/
        SecretKey secretKey = new SecretKeySpec(secret.getBytes("UTF-8"), "HmacMD5");
        Mac mac = Mac.getInstance(secretKey.getAlgorithm());
        mac.init(secretKey);
        bytes = mac.doFinal(data.getBytes("UTF-8"));
    } catch (GeneralSecurityException gse) {
        String msg = getStringFromException(gse);
        throw new IOException(msg);
    }
    return bytes;
}

From source file:Main.java

private static SecretKeySpec generateAESKey(String password) {
    byte[] data = null;
    StringBuilder sb = new StringBuilder();
    sb.append(password);/*ww w.  j  ava2s .com*/
    while (sb.length() < 16)
        sb.append("0");
    if (sb.length() > 16)
        sb.setLength(16);
    try {
        data = sb.toString().getBytes("UTF-8");
        return new SecretKeySpec(data, "AES");
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

From source file:Main.java

public static byte[] aesEncryptToBytes(String content, String encryptKey) throws Exception {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    kgen.init(128, new SecureRandom(encryptKey.getBytes()));

    Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(kgen.generateKey().getEncoded(), "AES"));

    return cipher.doFinal(content.getBytes("utf-8"));
}

From source file:Main.java

public static String aesDecryptByBytes(byte[] encryptBytes, String decryptKey) throws Exception {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    kgen.init(128, new SecureRandom(decryptKey.getBytes()));

    Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(kgen.generateKey().getEncoded(), "AES"));
    byte[] decryptBytes = cipher.doFinal(encryptBytes);

    return new String(decryptBytes);
}

From source file:Main.java

public static String doSignWithSHA1(String toSign, String keyString) throws Exception {
    SecretKeySpec key = new SecretKeySpec((keyString).getBytes(UTF_8), HMAC_SHA1);
    Mac mac = Mac.getInstance(HMAC_SHA1);
    mac.init(key);/*from   w  ww.jav  a2  s.  com*/
    byte[] bytes = mac.doFinal(toSign.getBytes(UTF_8));
    return Base64.encodeToString(bytes, Base64.CRLF).replace(CARRIAGE_RETURN, EMPTY_STRING);
}

From source file:Main.java

public static byte[] getDecCode(byte[] byteD, String seed) {
    byte[] byteFina = null;
    Cipher cipher = null;/*from w  w  w.  j  a  va 2 s. co  m*/

    try {
        SecretKeySpec skeySpec = new SecretKeySpec(getRawKey(seed.getBytes()), "AES");
        cipher = Cipher.getInstance("AES/CFB/NoPadding");
        cipher.init(Cipher.DECRYPT_MODE, skeySpec, new IvParameterSpec(new byte[cipher.getBlockSize()]));
        byteFina = cipher.doFinal(byteD);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        cipher = null;
    }

    return byteFina;
}

From source file:Main.java

public static byte[] getEncCode(byte[] byteE, String seed) {
    byte[] byteFina = null;
    Cipher cipher = null;//from  w  ww  .  j  a va  2s.  co m

    try {
        SecretKeySpec skeySpec = new SecretKeySpec(getRawKey(seed.getBytes()), "AES");

        cipher = Cipher.getInstance("AES/CFB/NoPadding");
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec, new IvParameterSpec(new byte[cipher.getBlockSize()]));
        //cipher.init(Cipher.ENCRYPT_MODE, skeySpec, new IvParameterSpec(new byte[cipher.getBlockSize()]));
        byteFina = cipher.doFinal(byteE);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        cipher = null;
    }

    return byteFina;
}

From source file:Main.java

public static byte[] encrypt(byte[] ivBytes, byte[] keyBytes, byte[] textBytes) {
    try {/*from w  ww. j  a  va  2  s . c o m*/
        AlgorithmParameterSpec ivSpec = new IvParameterSpec(ivBytes);
        SecretKeySpec newKey = new SecretKeySpec(keyBytes, "AES");
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
        cipher.init(Cipher.ENCRYPT_MODE, newKey, ivSpec);
        return cipher.doFinal(textBytes);
    } catch (Exception e) {
        Log.e(TAG, "Error during encryption: " + e.toString());
        return errorbyte;
    }
}

From source file:Main.java

public static String sign(String paramString1, String paramString2, String paramString3) {
    if (paramString3 == null)
        paramString3 = "";
    try {/*  w  ww.  j  av  a 2 s.  co  m*/
        SecretKeySpec localSecretKeySpec = new SecretKeySpec(
                (urlencode(paramString2, "UTF8") + '&' + urlencode(paramString3, "UTF8")).getBytes("UTF8"),
                "HmacSHA1");
        Mac localMac = Mac.getInstance("HmacSHA1");
        localMac.init(localSecretKeySpec);
        String str = urlencode(
                new String(Base64.encode(localMac.doFinal(paramString1.getBytes("UTF8")), 0), "UTF8"), "UTF8");
        return str;
    } catch (InvalidKeyException localInvalidKeyException) {
        return "";
    } catch (NoSuchAlgorithmException localNoSuchAlgorithmException) {
        return "";
    } catch (UnsupportedEncodingException localUnsupportedEncodingException) {
    }
    return "";
}