Example usage for javax.crypto Mac doFinal

Introduction

In this page you can find the example usage for javax.crypto Mac doFinal.

Prototype

public final byte[] doFinal(byte[] input) throws IllegalStateException 

Source Link

Document

Processes the given array of bytes and finishes the MAC operation.

Usage

From source file:Main.java

public static String getBytesMacEncrypt(byte[] bytes, SecretKey key) {
    String algorithm = key.getAlgorithm();
    if (algorithm.equals(HmacMD5) || algorithm.equals(HmacSHA1) || algorithm.equals(HmacSHA256)
            || algorithm.equals(HmacSHA384) || algorithm.equals(HmacSHA512)) {
        Mac mac = null;
        try {/*from   w w  w  .ja v a 2  s .c  o m*/
            mac = Mac.getInstance(algorithm);
            mac.init(key);
            return bytes2String(mac.doFinal(bytes));
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (InvalidKeyException e) {
            e.printStackTrace();
        }
    }
    return null;
}

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From source file:aaf.vhr.crypto.GoogleAuthenticator.java

private static int verifyCode(byte[] key, long t) throws NoSuchAlgorithmException, InvalidKeyException {
    byte[] data = new byte[8];
    long value = t;
    for (int i = 8; i-- > 0; value >>>= 8) {
        data[i] = (byte) value;
    }//from   www .  j a v a2 s  .  c om

    SecretKeySpec signKey = new SecretKeySpec(key, "HmacSHA1");
    Mac mac = Mac.getInstance("HmacSHA1");
    mac.init(signKey);
    byte[] hash = mac.doFinal(data);

    int offset = hash[20 - 1] & 0xF;

    // We're using a long because Java hasn't got unsigned int.
    long truncatedHash = 0;
    for (int i = 0; i < 4; ++i) {
        truncatedHash <<= 8;
        // We are dealing with signed bytes:
        // we just keep the first byte.
        truncatedHash |= (hash[offset + i] & 0xFF);
    }

    truncatedHash &= 0x7FFFFFFF;
    truncatedHash %= 1000000;

    return (int) truncatedHash;
}

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

/**
* Computes RFC 2104-compliant HMAC signature.
* * @param data/*from   w ww .j  av a 2 s.  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.ec2box.manage.util.OTPUtil.java

/**
 * verifies code for OTP secret per time interval
 *
 * @param secret shared secret/*  w  w  w .ja v  a2 s  .c o m*/
 * @param token  verification token
 * @param time   time representation to calculate OTP
 * @return true if success
 */
private static boolean verifyToken(String secret, long token, long time) {

    long calculated = -1;

    byte[] key = new Base32().decode(secret);

    SecretKeySpec secretKey = new SecretKeySpec(key, "HmacSHA1");

    try {
        Mac mac = Mac.getInstance("HmacSHA1");
        mac.init(secretKey);
        byte[] hash = mac.doFinal(ByteBuffer.allocate(8).putLong(time).array());

        int offset = hash[hash.length - 1] & 0xF;
        for (int i = 0; i < 4; ++i) {
            calculated <<= 8;
            calculated |= (hash[offset + i] & 0xFF);
        }

        calculated &= 0x7FFFFFFF;
        calculated %= 1000000;
    } catch (Exception ex) {
        log.error(ex.toString(), ex);
    }

    return calculated != -1 && calculated == token;

}

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From source file:com.keybox.manage.util.OTPUtil.java

/**
 * verifies code for OTP secret per time interval
 *
 * @param secret shared secret//from   www  . ja va2s  .c  o  m
 * @param token  verification token
 * @param time   time representation to calculate OTP
 * @return true if success
 */
private static boolean verifyToken(String secret, long token, long time) {

    long calculated = -1;

    byte[] key = new Base32().decode(secret);

    SecretKeySpec secretKey = new SecretKeySpec(key, "HmacSHA1");

    try {
        Mac mac = Mac.getInstance("HmacSHA1");
        mac.init(secretKey);
        byte[] hash = mac.doFinal(ByteBuffer.allocate(8).putLong(time).array());

        int offset = hash[hash.length - 1] & 0xF;
        for (int i = 0; i < 4; ++i) {
            calculated <<= 8;
            calculated |= (hash[offset + i] & 0xFF);
        }

        calculated &= 0x7FFFFFFF;
        calculated %= 1000000;
    } catch (Exception ex) {
        log.error(ex.toString(), ex);
    }

    return (calculated != -1 && calculated == token);

}

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From source file:illab.nabal.util.SecurityHelper.java

/**
 * Get HMACSHA1-encoded OAuth 1.0a signature string.
 * /*from  ww  w.j  a v a2 s.  c  o  m*/
 * @param secretKey - secret key to encode basestring with
 * @param baseString - signature base string 
 * @return oauthSignature - HMAC-SHA1 encoded signature string
 * @throws Exception
 */
public static String getHmacSha1Signature(String secretKey, String baseString) throws Exception {
    String oauthSignature = null;

    // #################### IMPORTANT ####################
    // the secret key is the concatenated values (each first encoded per Parameter 
    // Encoding) of the Consumer Secret and Token Secret, separated by an '&' character 
    // (ASCII code 38) even if empty.

    if (StringHelper.isAllFull(secretKey, baseString) == true) {
        byte[] keyBytes = secretKey.getBytes(HTTP.UTF_8);
        SecretKey keySpec = new SecretKeySpec(keyBytes, HMAC_SHA1);
        Mac mac = Mac.getInstance(HMAC_SHA1);
        mac.init(keySpec);
        oauthSignature = new String(Base64.encode(mac.doFinal(baseString.getBytes(HTTP.UTF_8)), Base64.DEFAULT),
                HTTP.UTF_8).trim();
    }
    return oauthSignature;
}

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From source file:org.egov.infra.security.utils.HMAC.java

public static String digest(String message, String privateKey) {
    try {/*from  ww w. ja  va 2s  .co m*/
        Mac hmac = Mac.getInstance(HMAC_SHA_256);
        hmac.init(new SecretKeySpec(privateKey.getBytes(UTF_8), HMAC_SHA_256));
        return Hex.encodeHexString(hmac.doFinal(privateKey.concat(message).getBytes(US_ASCII)));
    } catch (NoSuchAlgorithmException | InvalidKeyException e) {
        throw new ApplicationRuntimeException("Error occurred while hashing message", e);
    }
}

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From source file:com.eugene.fithealthmaingit.FatSecretSearchAndGet.FatSecretGetMethod.java

private static String sign(String method, String uri, String[] params) {
    String[] p = { method, Uri.encode(uri), Uri.encode(paramify(params)) };
    String s = join(p, "&");
    SecretKey sk = new SecretKeySpec(Globals.APP_SECRET.getBytes(), Globals.HMAC_SHA1_ALGORITHM);
    try {/* ww w .j  a va2 s  .c  o m*/
        Mac m = Mac.getInstance(Globals.HMAC_SHA1_ALGORITHM);
        m.init(sk);
        return Uri.encode(new String(Base64.encode(m.doFinal(s.getBytes()), Base64.DEFAULT)).trim());
    } catch (java.security.NoSuchAlgorithmException e) {
        Log.w("FatSecret_TEST FAIL", e.getMessage());
        return null;
    } catch (java.security.InvalidKeyException e) {
        Log.w("FatSecret_TEST FAIL", e.getMessage());
        return null;
    }
}

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From source file:net.foreworld.util.RestUtil.java

public static String genSignature(String data, String key) {
    byte[] byteHMAC = null;
    try {/* ww  w.  j ava  2 s  .  c o m*/
        Mac mac = Mac.getInstance(ALGORITHM);
        SecretKeySpec spec = new SecretKeySpec(key.getBytes(), ALGORITHM);
        mac.init(spec);
        byteHMAC = mac.doFinal(data.toLowerCase(Locale.getDefault()).getBytes());
    } catch (InvalidKeyException ignore) {
        return null;
    } catch (NoSuchAlgorithmException ignore) {
        return null;
    } // END

    if (null == byteHMAC)
        return null;

    // String code = new BASE64Encoder().encode(byteHMAC);
    String code = Base64.encodeBase64String(byteHMAC);

    try {
        return URLEncoder.encode(code, ENC);
    } catch (UnsupportedEncodingException ignore) {
    }
    return null;
}

---

From source file:com.vab.iflex.gateway.paybillservice.Stub.java

private static String calculateRFC2104HMAC(String data, String key) throws Exception {
    String result;/*w w w.j  ava 2  s  . c  o m*/
    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 BASE64Encoder().encode(rawHmac);
        result = new Base64().encodeAsString(rawHmac);

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

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