Example usage for javax.crypto Mac init

Introduction

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

Prototype

public final void init(Key key) throws InvalidKeyException 

Source Link

Document

Initializes this Mac object with the given key.

Usage

From source file:org.artifactory.security.crypto.CryptoHelper.java

public static String generateUniqueApiKey() throws GeneralSecurityException {
    byte[] hmacData;

    try {// ww w. j a v a2  s .co  m
        SecretKeySpec secretKey = new SecretKeySpec("secretKey".getBytes("UTF-8"), "HmacSHA256");
        Mac mac = Mac.getInstance("HmacSHA256");
        mac.init(secretKey);
        String data = UUID.randomUUID().toString();
        hmacData = mac.doFinal(data.getBytes("UTF-8"));
        return new Base64Encoder().encode(hmacData);
    } catch (UnsupportedEncodingException e) {
        throw new GeneralSecurityException(e);
    }
}

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

public static boolean hmacval(Key key, String alg, byte[] mat, byte[] dat) {
    try {//  www.  j  a va 2s.  c om
        Mac mac = Mac.getInstance(alg);
        mac.init(key);
        byte[] sig = mac.doFinal(mat);
        return Arrays.equals(sig, dat);
    } catch (Throwable t) {
        throw ExceptionHelper.propogate(t);
    }
}

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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 ww  .  j  a  va  2s  .  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.apereo.openlrs.utils.OAuthUtils.java

public static String sign(String secret, Map<String, String> oauthParameters, String algorithm, String method,
        String url) {//from w  w w. j av  a  2  s.  c  om

    StringBuilder signatureBase = new StringBuilder(OAuthUtils.percentEncode(method));
    signatureBase.append("&");
    signatureBase.append(OAuthUtils.percentEncode(url));
    signatureBase.append("&");

    Map<String, String> treeMap = new TreeMap<String, String>(oauthParameters);
    treeMap.remove("oauth_signature");
    treeMap.remove("realm");

    boolean first = true;
    for (Map.Entry<String, String> entry : treeMap.entrySet()) {
        if (!first)
            signatureBase.append(OAuthUtils.percentEncode("&"));
        else
            first = false;

        signatureBase.append(OAuthUtils.percentEncode(entry.getKey() + "=" + entry.getValue()));
    }

    Mac mac = null;
    try {
        SecretKeySpec secretKeySpec = new SecretKeySpec((OAuthUtils.percentEncode(secret) + "&").getBytes(),
                algorithm);

        mac = Mac.getInstance(secretKeySpec.getAlgorithm());
        mac.init(secretKeySpec);

    } catch (Exception e) {
        throw new RuntimeException(e);
    }

    if (log.isDebugEnabled()) {
        log.debug("signatureBaseString: " + signatureBase.toString());
    }

    byte[] bytes = mac.doFinal(signatureBase.toString().getBytes());
    byte[] encodedMacBytes = Base64.encodeBase64(bytes);

    return new String(encodedMacBytes);
}

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From source file:com.amazonaws.cbui.AmazonFPSCBUIPipeline.java

/**
 * Computes RFC 2104-compliant HMAC signature.
 *///from  w ww. j  av a 2s  .  c o m
private static String sign(String data, String key, String signatureMethod) throws SignatureException {
    String signature = "";
    try {
        Mac mac = Mac.getInstance(signatureMethod);
        mac.init(new SecretKeySpec(key.getBytes(), signatureMethod));
        signature = new String(Base64.encodeBase64(mac.doFinal(data.getBytes(UTF_8_Encoding))));
    } catch (Exception e) {
        throw new SignatureException("Failed to generate signature: " + e.getMessage(), e);
    }
    return signature;
}

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From source file:conexionSiabra.Oauth.java

private static String hmac_sha1(String value, String key) {
    try {//from w w w  .j ava  2 s.co  m
        SecretKey secretKey = null;
        byte[] keyBytes = key.getBytes();
        secretKey = new SecretKeySpec(keyBytes, "HmacSHA1");
        Mac mac = Mac.getInstance("HmacSHA1");
        mac.init(secretKey);
        byte[] text = value.getBytes();
        return new String(Base64.encode(mac.doFinal(text), 0)).trim();
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    } catch (InvalidKeyException e) {
        e.printStackTrace();
    }
    return null;
}

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From source file:org.jenkinsci.plugins.gogs.GogsWebHook.java

/**
 * encode sha256 hmac/*  w w w .j  a  v a2 s  . c om*/
 *
 * @param data data to hex
 * @param key key of HmacSHA256
 */
public static String encode(String data, String key) throws Exception {
    final Charset asciiCs = Charset.forName("UTF-8");
    final Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
    final SecretKeySpec secret_key = new javax.crypto.spec.SecretKeySpec(asciiCs.encode(key).array(),
            "HmacSHA256");
    sha256_HMAC.init(secret_key);
    return Hex.encodeHexString(sha256_HMAC.doFinal(data.getBytes("UTF-8")));
}

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From source file:ch.threema.apitool.CryptTool.java

/**
 * Hashes an email address for identity lookup.
 *
 * @param email the email address// ww  w  .j  a v a 2  s.co m
 * @return the raw hash
 */
public static byte[] hashEmail(String email) {
    try {
        Mac emailMac = Mac.getInstance("HmacSHA256");
        emailMac.init(new SecretKeySpec(EMAIL_HMAC_KEY, "HmacSHA256"));
        String normalizedEmail = email.toLowerCase().trim();
        return emailMac.doFinal(normalizedEmail.getBytes("US-ASCII"));
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

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From source file:ch.threema.apitool.CryptTool.java

/**
 * Hashes a phone number for identity lookup.
 *
 * @param phoneNo the phone number/* w w  w.j  ava2 s. c  o  m*/
 * @return the raw hash
 */
public static byte[] hashPhoneNo(String phoneNo) {
    try {
        Mac phoneMac = Mac.getInstance("HmacSHA256");
        phoneMac.init(new SecretKeySpec(PHONENO_HMAC_KEY, "HmacSHA256"));
        String normalizedPhoneNo = phoneNo.replaceAll("[^0-9]", "");
        return phoneMac.doFinal(normalizedPhoneNo.getBytes("US-ASCII"));
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

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

/**
 * Returns a HMAC/SHA256 representation of the given string
 * //  w ww  .j  a v a 2  s. co 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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