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:lti.oauth.OAuthMessageSigner.java

/**
 * This method double encodes the parameter keys and values.
 * Thus, it expects the keys and values contained in the 'parameters' SortedMap
 * NOT to be encoded.//  w w  w  .ja  v a2 s.  c o m
 * 
 * @param secret
 * @param algorithm
 * @param method
 * @param url
 * @param parameters
 * @return oauth signature
 * @throws Exception
 */
public String sign(String secret, String algorithm, String method, String url,
        SortedMap<String, String> parameters) throws Exception {
    SecretKeySpec secretKeySpec = new SecretKeySpec((secret.concat(OAuthUtil.AMPERSAND)).getBytes(), algorithm);
    Mac mac = Mac.getInstance(secretKeySpec.getAlgorithm());
    mac.init(secretKeySpec);

    StringBuilder signatureBase = new StringBuilder(OAuthUtil.percentEncode(method));
    signatureBase.append(OAuthUtil.AMPERSAND);

    signatureBase.append(OAuthUtil.percentEncode(url));
    signatureBase.append(OAuthUtil.AMPERSAND);

    int count = 0;
    for (String key : parameters.keySet()) {
        count++;
        signatureBase.append(OAuthUtil.percentEncode(OAuthUtil.percentEncode(key)));
        signatureBase.append(URLEncoder.encode(OAuthUtil.EQUAL, OAuthUtil.ENCODING));
        signatureBase.append(OAuthUtil.percentEncode(OAuthUtil.percentEncode(parameters.get(key))));

        if (count < parameters.size()) {
            signatureBase.append(URLEncoder.encode(OAuthUtil.AMPERSAND, OAuthUtil.ENCODING));
        }
    }

    if (log.isDebugEnabled()) {
        log.debug(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.edduarte.protbox.core.registry.PReg.java

public byte[] encrypt(byte[] decryptedData, boolean appendChecksum) throws ProtboxException {
    try {//from w w  w.jav a 2  s . c  o m
        CIPHER.init(Cipher.ENCRYPT_MODE, pair.getPairKey());

        byte[] integrityControlValue = null;
        int checksumLength = 0;
        if (appendChecksum) {
            Mac mac = Mac.getInstance("HmacSHA512");
            mac.init(pair.getIntegrityKey());

            integrityControlValue = mac.doFinal(decryptedData);
            checksumLength = 64;
        }

        byte[] encryptedData = CIPHER.doFinal(decryptedData);

        boolean isCBC = pair.getPairAlgorithm().contains("CBC");
        byte[] iv = CIPHER.getIV();
        int ivLength = isCBC ? 16 : 0;

        byte[] result = new byte[checksumLength + ivLength + encryptedData.length];
        if (appendChecksum) {
            System.arraycopy(integrityControlValue, 0, result, 0, checksumLength);
        }
        if (isCBC) {
            System.arraycopy(iv, 0, result, checksumLength, ivLength);
        }
        System.arraycopy(encryptedData, 0, result, checksumLength + ivLength, encryptedData.length);
        return result;

    } catch (GeneralSecurityException ex) {
        throw new ProtboxException(ex);
    }
}

---

From source file:com.edduarte.protbox.core.registry.PReg.java

public byte[] decrypt(byte[] encryptedData, boolean hasChecksum) throws ProtboxException {
    try {//ww  w. j ava 2s. co m
        byte[] dataToDecrypt;

        int checksumLength = hasChecksum ? 64 : 0;

        if (pair.getPairAlgorithm().contains("CBC")) {
            byte[] iv = new byte[16];
            System.arraycopy(encryptedData, checksumLength, iv, 0, 16);

            int dataToDecryptLength = encryptedData.length - checksumLength - 16;
            dataToDecrypt = new byte[dataToDecryptLength];
            System.arraycopy(encryptedData, checksumLength + 16, dataToDecrypt, 0, dataToDecryptLength);

            CIPHER.init(Cipher.DECRYPT_MODE, pair.getPairKey(), new IvParameterSpec(iv));

        } else {
            int dataToDecryptLength = encryptedData.length - checksumLength;
            dataToDecrypt = new byte[dataToDecryptLength];
            System.arraycopy(encryptedData, checksumLength, dataToDecrypt, 0, dataToDecryptLength);

            CIPHER.init(Cipher.DECRYPT_MODE, pair.getPairKey());
        }

        byte[] result = CIPHER.doFinal(dataToDecrypt);
        boolean isValid = true;

        if (hasChecksum) {
            byte[] fileCheckSum = new byte[checksumLength];
            System.arraycopy(encryptedData, 0, fileCheckSum, 0, checksumLength);

            Mac mac = Mac.getInstance("HmacSHA512");
            mac.init(pair.getIntegrityKey());
            byte[] integrityControlValue = mac.doFinal(result);

            isValid = Arrays.equals(fileCheckSum, integrityControlValue);
        }

        if (isValid) {
            return result;

        } else {
            throw new ProtboxException("Protected file contains invalid checksum.");
        }

    } catch (GeneralSecurityException ex) {
        throw new ProtboxException(ex);
    }
}

---

From source file:com.mastfrog.acteur.twitter.TwitterSign.java

String generateSignature(String data, AuthorizationResponse token)
        throws NoSuchAlgorithmException, InvalidKeyException {
    byte[] byteHMAC = null;
    Mac mac = Mac.getInstance(ALGORITHM);
    SecretKeySpec spec;/*from www .  j  a v a2 s.  c om*/
    if (token == null) {
        String signature = HttpParameter.encode(twitter_consumer_secret) + "&";
        spec = new SecretKeySpec(signature.getBytes(), ALGORITHM);
    } else {
        String signature = HttpParameter.encode(twitter_consumer_secret) + "&"
                + HttpParameter.encode(token.accessTokenSecret);
        spec = new SecretKeySpec(signature.getBytes(), ALGORITHM);
    }
    mac.init(spec);
    byteHMAC = mac.doFinal(data.getBytes());
    String sig = BASE64Encoder.encode(byteHMAC);
    return sig;
}

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From source file:org.cloudfoundry.identity.uaa.provider.oauth.XOAuthAuthenticationManagerIT.java

@Test
public void verify_hmac_256_signature() throws Exception {
    String key = "key";
    String data = "data";
    SecretKeySpec secretKey = new SecretKeySpec(key.getBytes("UTF-8"), "HmacSHA256");
    Mac mac = Mac.getInstance("HmacSHA256");
    mac.init(secretKey);/*from   ww  w. ja  v  a  2  s  .co m*/
    byte[] hmacData = mac.doFinal(data.getBytes("UTF-8"));
    assertThat(new String(Base64.encodeBase64URLSafe(hmacData)),
            equalTo(xoAuthAuthenticationManager.hmacSignAndEncode(data, key)));
}

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From source file:org.dasein.cloud.atmos.AtmosMethod.java

private @Nonnull String sign(@Nonnull ProviderContext ctx, @Nonnull String stringToSign)
        throws InternalException {
    try {/*from ww  w . j  av a  2  s . com*/
        Mac mac = Mac.getInstance("HmacSHA1");

        mac.init(new SecretKeySpec(Base64.decodeBase64(new String(ctx.getAccessPrivate(), "utf-8")),
                "HmacSHA1"));
        return new String(Base64.encodeBase64(mac.doFinal(stringToSign.getBytes("UTF-8"))), "utf-8");
    } catch (NoSuchAlgorithmException e) {
        logger.error(e);
        e.printStackTrace();
        throw new InternalException(e);
    } catch (InvalidKeyException e) {
        logger.error(e);
        e.printStackTrace();
        throw new InternalException(e);
    } catch (IllegalStateException e) {
        logger.error(e);
        e.printStackTrace();
        throw new InternalException(e);
    } catch (UnsupportedEncodingException e) {
        logger.error(e);
        e.printStackTrace();
        throw new InternalException(e);
    }
}

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From source file:net.sf.xfd.provider.PublicProvider.java

final void verifyMac(Uri path, String grantMode, String requested) throws FileNotFoundException {
    if (Process.myUid() == Binder.getCallingUid()) {
        return;//from   w  w w .  j  ava 2s  . c om
    }

    final int requestedMode = ParcelFileDescriptor.parseMode(requested);

    final String cookie = path.getQueryParameter(URI_ARG_COOKIE);
    final String expiry = path.getQueryParameter(URI_ARG_EXPIRY);

    if (TextUtils.isEmpty(cookie) || TextUtils.isEmpty(expiry)) {
        throw new FileNotFoundException("Invalid uri: MAC and expiry date are missing");
    }

    final long l;
    try {
        l = Long.parseLong(expiry);
    } catch (NumberFormatException nfe) {
        throw new FileNotFoundException("Invalid uri: unable to parse expiry date");
    }

    final Key key = getSalt(getContext());
    if (key == null) {
        throw new FileNotFoundException("Unable to verify hash: failed to produce key");
    }

    final int modeInt = ParcelFileDescriptor.parseMode(grantMode);

    if ((requestedMode & modeInt) != requestedMode) {
        throw new FileNotFoundException("Requested mode " + requested + " but limited to " + grantMode);
    }

    final byte[] encoded;
    final Mac hash;
    try {
        hash = Mac.getInstance("HmacSHA1");
        hash.init(key);

        final byte[] modeBits = new byte[] { (byte) (modeInt >> 24), (byte) (modeInt >> 16),
                (byte) (modeInt >> 8), (byte) modeInt, };
        hash.update(modeBits);

        final byte[] expiryDate = new byte[] { (byte) (l >> 56), (byte) (l >> 48), (byte) (l >> 40),
                (byte) (l >> 32), (byte) (l >> 24), (byte) (l >> 16), (byte) (l >> 8), (byte) l, };
        hash.update(expiryDate);

        encoded = hash.doFinal(path.getPath().getBytes());

        final String sample = Base64.encodeToString(encoded, URL_SAFE | NO_WRAP | NO_PADDING);

        if (!cookie.equals(sample)) {
            throw new FileNotFoundException("Expired uri");
        }
    } catch (NoSuchAlgorithmException e) {
        throw new FileNotFoundException("Unable to verify hash: missing HmacSHA1");
    } catch (InvalidKeyException e) {
        throw new FileNotFoundException("Unable to verify hash: corrupted key?!");
    }
}

---

From source file:net.spfbl.core.Core.java

private static long getCodeOTP(byte[] secret, long timeIndex) {
    try {/*from  w w  w  . j a v a 2  s .  c o m*/
        SecretKeySpec signKey = new SecretKeySpec(secret, "HmacSHA1");
        ByteBuffer buffer = ByteBuffer.allocate(8);
        buffer.putLong(timeIndex);
        byte[] timeBytes = buffer.array();
        Mac mac = Mac.getInstance("HmacSHA1");
        mac.init(signKey);
        byte[] hash = mac.doFinal(timeBytes);
        int offset = hash[19] & 0xf;
        long truncatedHash = hash[offset] & 0x7f;
        for (int i = 1; i < 4; i++) {
            truncatedHash <<= 8;
            truncatedHash |= hash[offset + i] & 0xff;
        }
        return (truncatedHash %= 1000000);
    } catch (Exception ex) {
        return 0;
    }
}

---

From source file:edu.ku.brc.util.WebStoreAttachmentMgr.java

private String generateToken(String attachLocation) {
    if (StringUtils.isEmpty(attachment_key))
        return "";

    SecretKeySpec keySpec = new SecretKeySpec(attachment_key.getBytes(), "HmacMD5");
    Mac mac;
    try {//from ww  w .  j a  v a2s .co m
        mac = Mac.getInstance("HmacMD5");
        mac.init(keySpec);
    } catch (NoSuchAlgorithmException | InvalidKeyException e) {
        throw new RuntimeException(e);
    }

    String timestamp = "" + (getSystemTime() + serverTimeDelta);
    byte[] raw = mac.doFinal((timestamp + attachLocation).getBytes());

    return new String(Hex.encodeHex(raw)) + ":" + timestamp;
}

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From source file:com.emc.esu.api.rest.AbstractEsuRestApi.java

public String sign(byte[] input)
        throws UnsupportedEncodingException, InvalidKeyException, NoSuchAlgorithmException {
    Mac mac = Mac.getInstance("HmacSHA1");
    SecretKeySpec key = new SecretKeySpec(secret, "HmacSHA1");
    mac.init(key);/*ww  w  .j a v a2 s .  com*/

    byte[] hashData = mac.doFinal(input);

    // Encode the hash in Base64.
    return new String(Base64.encodeBase64(hashData), "UTF-8");
}

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