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() throws IllegalStateException 

Source Link

Document

Finishes the MAC operation.

Usage

From source file:org.apache.shindig.common.crypto.Crypto.java

/**
 * Verifies an HMAC SHA1 hash.  Throws if the verification fails.
 * /*  w ww.j av  a 2 s.  c o m*/
 * @param key
 * @param in
 * @param expected
 * @throws GeneralSecurityException
 */
public static void hmacSha1Verify(byte[] key, byte[] in, byte[] expected) throws GeneralSecurityException {
    Mac hmac = Mac.getInstance(HMAC_TYPE);
    Key hmacKey = new SecretKeySpec(key, HMAC_TYPE);
    hmac.init(hmacKey);
    hmac.update(in);
    byte actual[] = hmac.doFinal();
    if (actual.length != expected.length) {
        throw new GeneralSecurityException("HMAC verification failure");
    }
    for (int i = 0; i < actual.length; i++) {
        if (actual[i] != expected[i]) {
            throw new GeneralSecurityException("HMAC verification failure");
        }
    }
}

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From source file:com.cloud.test.utils.UtilsForTest.java

public static String signRequest(String request, String key) {
    try {//from   ww w .j a  v a  2s.  c om
        Mac mac = Mac.getInstance("HmacSHA1");
        SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(), "HmacSHA1");
        mac.init(keySpec);
        mac.update(request.getBytes());
        byte[] encryptedBytes = mac.doFinal();
        //System.out.println("HmacSHA1 hash: " + encryptedBytes);
        return Base64.encodeBase64String(encryptedBytes);
    } catch (Exception ex) {
        System.out.println("unable to sign request");
        ex.printStackTrace();
    }
    return null;
}

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From source file:Main.java

public static String getFileMacEncrypt(File file, SecretKey key) throws IOException {
    String algorithm = key.getAlgorithm();
    Mac mac = null;
    try {//  www. j a  va  2  s  . com
        mac = Mac.getInstance(algorithm);
        mac.init(key);
        FileInputStream in = new FileInputStream(file);
        byte[] buffer = new byte[1024 * 1024];
        int len = 0;
        while ((len = in.read(buffer)) > 0) {
            mac.update(buffer, 0, len);
        }
        in.close();
        return bytes2String(mac.doFinal());
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    } catch (InvalidKeyException e) {
        e.printStackTrace();
    }
    return null;
}

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From source file:org.apache.abdera2.common.security.HashHelper.java

public static String hmac(Key key, String alg, byte[] mat) {
    try {/*from w w w .  ja  v  a  2 s. c  om*/
        Mac mac = Mac.getInstance(alg);
        mac.init(key);
        mac.update(mat, 0, mat.length);
        byte[] sig = mac.doFinal();
        return Base64.encodeBase64URLSafeString(sig);
    } catch (Throwable t) {
        throw ExceptionHelper.propogate(t);
    }
}

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From source file:org.apache.cloudstack.region.RegionsApiUtil.java

/**
 * 1. Signs a string with a secret key using SHA-1 2. Base64 encode the result 3. URL encode the final result
 *
 * @param request//from  w ww  .j  a  va  2 s.  c  o m
 * @param key
 * @return
 */
private static String signRequest(String request, String key) {
    try {
        Mac mac = Mac.getInstance("HmacSHA1");
        SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(), "HmacSHA1");
        mac.init(keySpec);
        mac.update(request.getBytes());
        byte[] encryptedBytes = mac.doFinal();
        return URLEncoder.encode(Base64.encodeBase64String(encryptedBytes), "UTF-8");
    } catch (Exception ex) {
        s_logger.error(ex.getMessage());
        return null;
    }
}

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From source file:org.linkdroid.PostJob.java

private static String hmacSha1(InputStream plainText, String secretString, String nonce)
        throws IOException, InvalidKeyException, NoSuchAlgorithmException {
    Mac mac = initHmacSha1(secretString, nonce);

    // digest the content.
    byte[] bytes = new byte[1024];
    int count;/* w  w w .  j ava  2 s. co  m*/
    while ((count = plainText.read(bytes)) != -1) {
        mac.update(bytes, 0, count);
    }

    // Return the string digest
    return hmacDigestToHexString(mac.doFinal());
}

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From source file:com.alibaba.openapi.client.util.SignatureUtil.java

public static byte[] hmacSha1(String[] datas, SecretKeySpec signingKey) {
    Mac mac;
    try {//www  .  j a va  2s.  c  o  m
        mac = Mac.getInstance(HMAC_SHA1);
        mac.init(signingKey);
    } catch (NoSuchAlgorithmException e) {
        throw new IllegalStateException(e.getMessage(), e);
    } catch (InvalidKeyException e) {
        throw new IllegalStateException(e.getMessage(), e);
    }
    for (String data : datas) {
        mac.update(data.getBytes(CHARSET_UTF8));
    }
    return mac.doFinal();
}

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From source file:be.fedict.eid.applet.service.impl.UserIdentifierUtil.java

/**
 * Gives back a non-reversible citizen identifier (NRCID).
 * /*from ww  w  .  j a v  a  2s. co m*/
 * @param userId
 *            the primary user identifier, i.e. the national registry
 *            number.
 * @param orgId
 *            the optional organization identifier.
 * @param appId
 *            the optional application identifier.
 * @param secret
 *            the application specific secret. Should be at least 128 bit
 *            long. Encoded in hexadecimal format.
 * @return
 */
public static String getNonReversibleCitizenIdentifier(String userId, String orgId, String appId,
        String secret) {
    if (null == secret) {
        throw new IllegalArgumentException("secret key is null");
    }
    /*
     * Avoid XML formatting issues introduced by some web.xml XML editors.
     */
    secret = secret.trim();
    if (null != orgId) {
        orgId = orgId.trim();
    } else {
        LOG.warn("it is advised to use an orgId");
    }
    if (null != appId) {
        appId = appId.trim();
    } else {
        LOG.warn("it is advised to use an appId");
    }

    /*
     * Decode the secret key.
     */
    byte[] secretKey;
    try {
        secretKey = Hex.decodeHex(secret.toCharArray());
    } catch (DecoderException e) {
        LOG.error("secret is not hexadecimal encoded: " + e.getMessage());
        throw new IllegalArgumentException("secret is not hexadecimal encoded");
    }
    if ((128 / 8) > secretKey.length) {
        /*
         * 128 bit is seen as secure these days.
         */
        LOG.warn("secret key is too short");
        throw new IllegalArgumentException("secret key is too short");
    }

    /*
     * Construct the HMAC input sequence.
     */
    String input = userId;
    if (null != appId) {
        input += appId;
    }
    if (null != orgId) {
        input += orgId;
    }
    byte[] inputData = input.getBytes();

    SecretKey macKey = new SecretKeySpec(secretKey, HMAC_ALGO);
    Mac mac;
    try {
        mac = Mac.getInstance(macKey.getAlgorithm());
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException("HMAC algo not available: " + e.getMessage());
    }
    try {
        mac.init(macKey);
    } catch (InvalidKeyException e) {
        LOG.error("invalid secret key: " + e.getMessage(), e);
        throw new RuntimeException("invalid secret");
    }
    mac.update(inputData);
    byte[] resultHMac = mac.doFinal();
    String resultHex = new String(Hex.encodeHex(resultHMac)).toUpperCase();
    return resultHex;
}

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From source file:Main.java

/**
 * Compute the HMAC with SHA-256 of data, as defined in
 * http://tools.ietf.org/html/rfc2104#section-2 .
 * @param key The key byte array./*from  w  w  w  .j a v a 2 s .  c o  m*/
 * @param data The input byte buffer. This does not change the position.
 * @return The HMAC result.
 */
public static byte[] computeHmacWithSha256(byte[] key, ByteBuffer data) {
    final String algorithm = "HmacSHA256";
    Mac mac;
    try {
        mac = Mac.getInstance(algorithm);
    } catch (NoSuchAlgorithmException ex) {
        // Don't expect this to happen.
        throw new Error("computeHmac: " + algorithm + " is not supported: " + ex.getMessage());
    }

    try {
        mac.init(new SecretKeySpec(key, algorithm));
    } catch (InvalidKeyException ex) {
        // Don't expect this to happen.
        throw new Error("computeHmac: Can't init " + algorithm + " with key: " + ex.getMessage());
    }
    int savePosition = data.position();
    mac.update(data);
    data.position(savePosition);
    return mac.doFinal();
}

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From source file:org.linkdroid.PostJob.java

private static final String calculateBundleExtrasHmac(Bundle data, String secretString)
        throws NoSuchAlgorithmException, IOException, InvalidKeyException {
    Mac mac = initHmacSha1(secretString, null);
    SortedSet<String> keys = new TreeSet<String>(data.keySet());
    for (String key : keys) {
        mac.update(key.getBytes(UTF8));//  w  w w  .ja v a  2 s  .  com
        Object value = data.get(key);
        // We only add the value to the hmac digest if it exists; the key is still
        // part of the digest calculation.
        if (value != null) {
            mac.update(value.toString().getBytes(UTF8));
        }
    }
    return hmacDigestToHexString(mac.doFinal());
}

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