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.eucalyptus.auth.euare.EuareServerCertificateUtil.java

public static String getEncryptedKey(final String certArn, final String certPem) throws AuthException {
    final ServerCertificate targetCert = lookupServerCertificate(certArn);
    // generate symmetric key
    final MessageDigest digest = Digest.SHA256.get();
    final byte[] salt = new byte[32];
    Crypto.getSecureRandomSupplier().get().nextBytes(salt);
    digest.update(salt);//from  w w w .  ja v  a  2s.c  o  m
    final SecretKey symmKey = new SecretKeySpec(digest.digest(), "AES");

    try {
        // encrypt the server pk using symm key
        Cipher cipher = Ciphers.AES_CBC.get();
        final byte[] iv = new byte[16];
        Crypto.getSecureRandomSupplier().get().nextBytes(iv);
        cipher.init(Cipher.ENCRYPT_MODE, symmKey, new IvParameterSpec(iv),
                Crypto.getSecureRandomSupplier().get());
        final byte[] cipherText = cipher.doFinal(Base64.encode(targetCert.getPrivateKey().getBytes()));
        final String encPrivKey = new String(Base64.encode(Arrays.concatenate(iv, cipherText)));

        // encrypt the symmetric key using the certPem
        X509Certificate x509Cert = PEMFiles.getCert(B64.standard.dec(certPem));
        cipher = Ciphers.RSA_PKCS1.get();
        cipher.init(Cipher.ENCRYPT_MODE, x509Cert.getPublicKey(), Crypto.getSecureRandomSupplier().get());
        byte[] symmkey = cipher.doFinal(symmKey.getEncoded());
        final String b64SymKey = new String(Base64.encode(symmkey));

        return String.format("%s\n%s", b64SymKey, encPrivKey);
    } catch (final Exception ex) {
        throw Exceptions.toUndeclared(ex);
    }
}

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From source file:com.livily.pusher.Pusher.java

/**
 * Returns a HMAC/SHA256 representation of the given string
 * //from   w  ww .  j  ava  2 s  .c o  m
 * @param data
 * @return
 */
private static String hmacsha256Representation(String data) {
    try {
        // Create the HMAC/SHA256 key from application secret
        final SecretKeySpec signingKey = new SecretKeySpec(pusherApplicationSecret.getBytes(), "HmacSHA256");

        // Create the message authentication code (MAC)
        final Mac mac = Mac.getInstance("HmacSHA256");
        mac.init(signingKey);

        // Process and return data
        byte[] digest = mac.doFinal(data.getBytes("UTF-8"));
        digest = mac.doFinal(data.getBytes());
        // Convert to string
        BigInteger bigInteger = new BigInteger(1, digest);
        return String.format("%0" + (digest.length << 1) + "x", bigInteger);
    } catch (NoSuchAlgorithmException nsae) {
        // We should never come here, because GAE has HMac SHA256
        throw new RuntimeException("No HMac SHA256 algorithm");
    } catch (UnsupportedEncodingException e) {
        // We should never come here, because UTF-8 should be available
        throw new RuntimeException("No UTF-8");
    } catch (InvalidKeyException e) {
        throw new RuntimeException("Invalid key exception while converting to HMac SHA256");
    }
}

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From source file:br.com.manish.ahy.kernel.util.HashUtil.java

private static Cipher getCipher(boolean enc)
        throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    kgen.init(128);/*from   w w  w.  j a v a 2 s  .c  o m*/
    SecretKeySpec skeySpec = new SecretKeySpec(getBytes(HEXES2), "AES");
    Cipher cipher = Cipher.getInstance("AES");
    if (enc) {
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
    } else {
        cipher.init(Cipher.DECRYPT_MODE, skeySpec);
    }
    return cipher;
}

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From source file:ch.newscron.encryption.Encryption.java

/**
 * Given a String, it is decoded and the result is returned as a String as well.
 * @param encodedUrl is a String that have the full data encrypted
 * @return decoded String//from   w  w w .  j  av a 2s.c  om
 */
public static String decode(String encodedUrl) {

    try {

        //Decode URL
        final SecretKeySpec secretKey = new SecretKeySpec(key, "AES");
        cipher.init(Cipher.DECRYPT_MODE, secretKey,
                new IvParameterSpec(initializationVector.getBytes("UTF-8")));

        String result = new String(cipher.doFinal(Base64.decodeBase64(encodedUrl)));

        //Extract and remove hash from JSONObject
        JSONParser parser = new JSONParser();
        JSONObject receivedData = (JSONObject) parser.parse(result);
        String receivedHash = (String) receivedData.get("hash");
        receivedData.remove("hash");

        //Compare received hash with newly computed hash
        if (checkDataValidity(receivedData)) {
            byte[] hashOfData = createMD5Hash(receivedData);

            if (receivedHash.equals(new String(hashOfData, "UTF-8"))) { //Valid data
                return receivedData.toString();
            }
        }
    } catch (Exception e) {
    } //Invalid data (including encryption algorithm exceptions

    return null;
}

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From source file:co.edu.uniandes.csw.Arquidalgos.usuario.service._UsuarioService.java

@POST
@Path("/crearUsuario")
public UsuarioDTO crearUsuario(UsuarioDTO usuario) throws Exception {

    Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
    String key = "123";
    SecretKeySpec secret_key = new SecretKeySpec(key.getBytes(), "HmacSHA256");
    sha256_HMAC.init(secret_key);/*w ww.  jav  a 2s.  co  m*/

    System.out.println("TO String: " + usuario.toString());

    String hash = Hex.encodeHexString(sha256_HMAC.doFinal(usuario.toString().getBytes()));
    System.out.println("CODIGO HASH: " + hash);
    System.out.println("CODIGO HASH JSON " + usuario.getHash());

    boolean alterado = !(hash.equalsIgnoreCase(usuario.getHash()));
    System.out.println("Alterado: " + alterado);

    if (alterado) {
        throw new Exception("Se han alterado los datos");
    }
    return createUsuario(usuario);
}

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From source file:com.aqnote.shared.cryptology.symmetric.Blowfish.java

public Blowfish(String keySpec, byte[] paramSpec) {
    this.keySpec = new SecretKeySpec(keySpec.getBytes(), ALGORITHM);
    this.paramSpec = new IvParameterSpec(paramSpec);
    initBlowfish();// ww  w  .j  av a2 s  .c o  m
}

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From source file:corner.encrypt.services.impl.DESedeEncryptServiceImpl.java

/**
 * @see corner.encrypt.services.EncryptService#decrypt(byte[], byte[])
 *///  w  ww . ja v  a 2 s .co m
@Override
public byte[] decrypt(byte[] src, byte[] keybyte) {
    try {
        SecretKey deskey = new SecretKeySpec(keybyte, Algorithm);
        Cipher c1 = Cipher.getInstance(Algorithm);
        c1.init(Cipher.DECRYPT_MODE, deskey);
        return c1.doFinal(src);
    } catch (java.security.NoSuchAlgorithmException e1) {
        e1.printStackTrace();
    } catch (javax.crypto.NoSuchPaddingException e2) {
        e2.printStackTrace();
    } catch (java.lang.Exception e3) {
        e3.printStackTrace();
    }
    return null;
}

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From source file:me.lazerka.gae.jersey.oauth2.facebook.TokenVerifierFacebookSignedRequest.java

public TokenVerifierFacebookSignedRequest(URLFetchService urlFetchService, ObjectMapper jackson, String appId,
        String appSecret, String redirectUri) {
    this.jackson = jackson;
    this.redirectUri = redirectUri;
    this.fetcher = new FacebookFetcher(appId, appSecret, jackson, urlFetchService);

    try {/*w ww.j a va2  s .  co  m*/
        SecretKeySpec signingKey = new SecretKeySpec(appSecret.getBytes(UTF_8), "HmacSHA1");
        hmac = Mac.getInstance("HmacSHA256");
        hmac.init(signingKey);
    } catch (NoSuchAlgorithmException | InvalidKeyException e) {
        throw Throwables.propagate(e);
    }
}

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From source file:fitmon.WorkoutApi.java

public StringBuilder apiGetInfo()
        throws ClientProtocolException, IOException, NoSuchAlgorithmException, InvalidKeyException {
    HttpClient client = new DefaultHttpClient();
    //HttpGet request = new HttpGet("http://platform.fatsecret.com/rest/server.api&"
    //                    + "oauth_consumer_key=5f2d9f7c250c4d75b9807a4f969363a7&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1408230438&"
    //                     + "oauth_nonce=abc&oauth_version=1.0&method=food.get&food_id=4384");
    //HttpResponse response = client.execute(request);
    //BufferedReader rd = new BufferedReader (new InputStreamReader(response.getEntity().getContent()));
    //StringBuilder sb = new StringBuilder();
    String base = URLEncoder.encode("GET") + "&";
    base += "http%3A%2F%2Fplatform.fatsecret.com%2Frest%2Fserver.api&";

    String params;//from   w w w .  j  a va  2 s  .  c o m

    params = "format=json&";
    params += "method=exercises.get&";
    params += "oauth_consumer_key=5f2d9f7c250c4d75b9807a4f969363a7&"; // ur consumer key 
    params += "oauth_nonce=123&";
    params += "oauth_signature_method=HMAC-SHA1&";
    Date date = new java.util.Date();
    Timestamp ts = new Timestamp(date.getTime());
    params += "oauth_timestamp=" + ts.getTime() + "&";
    params += "oauth_version=1.0";
    //params += "search_expression=apple"; 

    String params2 = URLEncoder.encode(params);
    base += params2;
    //System.out.println(base);
    String line = "";

    String secret = "76172de2330a4e55b90cbd2eb44f8c63&";
    Mac sha256_HMAC = Mac.getInstance("HMACSHA1");
    SecretKeySpec secret_key = new SecretKeySpec(secret.getBytes(), "HMACSHA1");
    sha256_HMAC.init(secret_key);
    String hash = Base64.encodeBase64String(sha256_HMAC.doFinal(base.getBytes()));

    //$url = "http://platform.fatsecret.com/rest/server.api?".$params."&oauth_signature=".rawurlencode($sig); 
    HttpGet request = new HttpGet("http://platform.fatsecret.com/rest/server.api?" + params
            + "&oauth_signature=" + URLEncoder.encode(hash));
    HttpResponse response = client.execute(request);
    BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
    StringBuilder sb = new StringBuilder();

    //$url = "http://platform.fatsecret.com/rest/server.api?"+params+"&oauth_signature="+URLEncoder.encode(hash);
    //return url;

    while ((line = rd.readLine()) != null) {
        sb.append(line);
        //System.out.println(line);
    }
    //System.out.println(sb.toString());
    return sb;
}

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From source file:net.datacrow.onlinesearch.amazon.SignedRequestsHelper.java

public SignedRequestsHelper(String awsAccessKeyId, String awsSecretKey)
        throws UnsupportedEncodingException, NoSuchAlgorithmException, InvalidKeyException {
    this.awsAccessKeyId = awsAccessKeyId;
    this.awsSecretKey = awsSecretKey;

    byte[] secretyKeyBytes = this.awsSecretKey.getBytes(UTF8_CHARSET);
    this.secretKeySpec = new SecretKeySpec(secretyKeyBytes, HMAC_SHA256_ALGORITHM);
    this.mac = Mac.getInstance(HMAC_SHA256_ALGORITHM);
    this.mac.init(secretKeySpec);
}

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