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.philosophy.LicenseGen.java

public LicenseGen(String text) {
    license = text;// w  w  w.j ava  2 s.  c o m
    byte[] keyBytes = { 88, 42, 94, 52, 56, 81, 82, 98 };
    System.out.println("Original License : " + license);
    try {
        SecretKey key = new SecretKeySpec(keyBytes, "DES");
        Cipher cipher = Cipher.getInstance("DES");
        byte[] data = license.getBytes();
        cipher.init(Cipher.ENCRYPT_MODE, key);
        byte[] encrypted = cipher.doFinal(data);
        System.out.println("Encrypted license : " + new String(encrypted));
        //now convert to base64
        byte[] base64Enc = Base64.encodeBase64(encrypted);
        String encodedLicense = new String(base64Enc);
        System.out.println("Encoded license is : " + encodedLicense);
        System.out.println("Encoding string length is : " + encodedLicense.length());
    } catch (NoSuchAlgorithmException e) {
    } catch (NoSuchPaddingException e) {
    } catch (InvalidKeyException e) {
    } catch (IllegalStateException e) {
    } catch (IllegalBlockSizeException e) {
    } catch (BadPaddingException e) {
    }
}

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From source file:com.philosophy.LicenseDecoder.java

public LicenseDecoder(String text) {
    license = text;//from  w ww . j  a v  a 2s  .c o  m
    byte[] keyBytes = { 88, 42, 94, 52, 56, 81, 82, 98 };
    System.out.println("Original License : " + license);
    try {
        SecretKey key = new SecretKeySpec(keyBytes, "DES");
        Cipher cipher = Cipher.getInstance("DES");
        byte[] decoded = Base64.decodeBase64(license.getBytes());
        cipher.init(Cipher.DECRYPT_MODE, key);
        byte[] decrypted = cipher.doFinal(decoded);
        System.out.println("Decrypted license : " + new String(decrypted));
    } catch (NoSuchAlgorithmException e) {
    } catch (NoSuchPaddingException e) {
    } catch (InvalidKeyException e) {
    } catch (IllegalStateException e) {
    } catch (IllegalBlockSizeException e) {
    } catch (BadPaddingException e) {
    }
}

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From source file:info.fcrp.keepitsafe.util.Crypt.java

private static void init() {
    if (cryptCipher == null || decryptCipher == null) {
        try {//  w  w  w.ja  v  a 2s .  c o m
            SecretKeySpec keySpec = new SecretKeySpec(password.getBytes(), "AES");
            cryptCipher = Cipher.getInstance("AES");
            cryptCipher.init(Cipher.ENCRYPT_MODE, keySpec);

            decryptCipher = Cipher.getInstance("AES");
            decryptCipher.init(Cipher.DECRYPT_MODE, keySpec);

        } catch (NoSuchAlgorithmException e) {
            throw new RuntimeException(e);
        } catch (NoSuchPaddingException e) {
            throw new RuntimeException(e);
        }
        // output = cipher.doFinal(input)
        //
        // Cipher c = Cipher.getInstance("AES");
        // String plain = "plain";
        // byte[] plainBytes = plain.getBytes();
        //
        // c.init(Cipher.ENCRYPT_MODE, k);
        // c.update(plainBytes);
        //
        // byte[] encBytes = c.doFinal();
        // String enc = Base64.encodeBase64String(encBytes);
        // assertNotSame(plain, enc);
        //
        // c.init(Cipher.DECRYPT_MODE, k);
        // c.update(encBytes);
        // byte[] decBytes = c.doFinal();
        // String dec = new String(decBytes);
        catch (InvalidKeyException e) {
            throw new RuntimeException(e);
        }
    }
}

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From source file:uploadProcess.java

public static boolean encrypt(String path, FileItemStream item, String patientID) {
    try {/*from   ww  w  .  j  av a2s .c  o m*/
        File mainFolder = new File(path + File.separator + "Encrypt");
        if (!mainFolder.exists()) {
            mainFolder.mkdir();
        }
        File patientFolder = new File(mainFolder + File.separator + patientID);
        if (!patientFolder.exists()) {
            patientFolder.mkdir();
        }
        String ukey = GetKey.getPatientKey(patientID);
        InputStream fis = item.openStream();

        FileOutputStream fos = new FileOutputStream(
                patientFolder.getAbsolutePath() + File.separator + item.getName());
        byte[] k = ukey.getBytes();
        SecretKeySpec key = new SecretKeySpec(k, "AES");
        System.out.println(key);
        Cipher enc = Cipher.getInstance("AES");
        enc.init(Cipher.ENCRYPT_MODE, key);
        CipherOutputStream cos = new CipherOutputStream(fos, enc);
        byte[] buf = new byte[1024];
        int read;
        while ((read = fis.read(buf)) != -1) {
            cos.write(buf, 0, read);
        }
        fis.close();
        fos.flush();
        cos.close();

        //Upload File to cloud
        DropboxUpload upload = new DropboxUpload();
        upload.uploadFile(patientFolder, item.getName(), StoragePath.getDropboxDir() + patientID);
        DeleteDirectory.delete(patientFolder);

        return true;
    } catch (Exception e) {
        System.out.println("Error: " + e);
    }
    return false;
}

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From source file:model.Encryption.java

public void setSecret(String key) {
    this.secret = new SecretKeySpec(key.getBytes(), "AES");
}

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From source file:com.myapp.common.AES4MEncrypt.java

/**
 * /*from ww w.  j  ava2  s  .  c  o m*/
 * 
 * @param sSrc 
 * @param sKey KEY
 * @return
 * @throws Exception
 * @author cdduqiang
 * @date 201443
 */
public static String encrypt(String sSrc, String sKey) throws Exception {
    if (sKey == null) {
        log.error("Encrypt Key ??");
        throw new Exception("Encrypt Key ??");
    }

    byte[] raw = hex2byte(sKey);
    SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
    IvParameterSpec iv = new IvParameterSpec("0102030405060708".getBytes());
    cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
    byte[] anslBytes = sSrc.getBytes(ENCODING);// string2AnslBytes(sSrc);
    byte[] encrypted = cipher.doFinal(anslBytes);
    return byte2hex(encrypted).toUpperCase();
}

---

From source file:com.miyue.util.Cryptos.java

/**
 * HMAC-SHA1???, ,20.// w  ww  .j  a v a2 s.c  om
 * 
 * @param input 
 * @param key HMAC-SHA1
 */
public static byte[] hmacSha1(byte[] input, byte[] key) {
    try {
        SecretKey secretKey = new SecretKeySpec(key, HMACSHA1);
        Mac mac = Mac.getInstance(HMACSHA1);
        mac.init(secretKey);
        return mac.doFinal(input);
    } catch (GeneralSecurityException e) {
        throw Exceptions.unchecked(e);
    }
}

---

From source file:de.desy.dcache.s3.Signature.java

/**
* Computes RFC 2104-compliant HMAC signature.
* * @param data//from  ww w.j a  v  a2s  .c om
* The data to be signed.
* @param key
* The signing key.
* @return
* The Base64-encoded RFC 2104-compliant HMAC signature.
* @throws
* java.security.SignatureException when signature generation fails
*/
public static String calculateRFC2104HMAC(String data, String key) throws java.security.SignatureException {
    String result;
    try {
        // get an hmac_sha1 key from the raw key bytes
        SecretKeySpec signingKey = new SecretKeySpec(key.getBytes(), HMAC_SHA1_ALGORITHM);

        // get an hmac_sha1 Mac instance and initialize with the signing key
        Mac mac = Mac.getInstance(HMAC_SHA1_ALGORITHM);
        mac.init(signingKey);

        // compute the hmac on input data bytes
        byte[] rawHmac = mac.doFinal(data.getBytes());

        // base64-encode the hmac
        result = new String(Base64.encodeBase64(rawHmac));

    } catch (Exception e) {
        throw new SignatureException("Failed to generate HMAC: " + e.getMessage());
    }
    return result;
}

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

public static String encryptAES(String key, String value) {
    try {/*www  .j  a  v  a 2s  .c om*/
        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.ENCRYPT_MODE, skeySpec, iv);

        byte[] encrypted = cipher.doFinal(value.getBytes());
        //            System.out.println("encrypted string: "
        //                    + Base64.encodeBase64String(encrypted));

        return Base64.encodeBase64String(encrypted);
    } catch (Exception ex) {
        ex.printStackTrace();
    }

    return null;
}

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From source file:io.personium.core.model.file.DataCryptor.java

/**
 * Set secret key.//from  w w  w.j ava 2  s.co  m
 * @param keyString key string
 */
public static void setKeyString(String keyString) {
    aesKey = new SecretKeySpec(keyString.getBytes(), "AES");
}

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