Example usage for javax.crypto KeyGenerator generateKey

Introduction

In this page you can find the example usage for javax.crypto KeyGenerator generateKey.

Prototype

public final SecretKey generateKey() 

Source Link

Document

Generates a secret key.

Usage

From source file:org.craftercms.security.authentication.impl.CipheredAuthenticationCookieFactory.java

/**
 * Generates a random encryption key./*from   w w  w.java  2  s .c  o  m*/
 */
protected Key generateRandomKey() throws CrafterSecurityException {
    KeyGenerator keyGenerator;
    try {
        keyGenerator = KeyGenerator.getInstance(CIPHER_ALGORITHM);
        keyGenerator.init(secureRandom);

        return keyGenerator.generateKey();
    } catch (Exception e) {
        throw new CrafterSecurityException("Unable to generate random encryption key", e);
    }
}

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From source file:com.tcloud.bee.key.server.service.impl.KeyManageServiceImpl.java

@Override
public QueryResult createKey(Param param, String owner)
        throws NoSuchAlgorithmException, FileNotFoundException, IOException {
    logger.info("User is trying to create key. userName:" + owner + ", keyName:" + param.getKeyName());
    File newKeyfile = new File(env.getProperty("keyfile.path") + param.getKeyName());
    if (newKeyfile.exists()) {
        logger.info("keyName \"" + param.getKeyName() + "\" exists, please choose another keyName.");
        return new QueryResult(BeeConstants.ResponseStatus.FAIL,
                BeeConstants.ErrorMap.get(BeeConstants.ResponseCode.ERROR_KM_KEYNAME_EXISTS), null);
    }//  w  w  w .j a  v a 2  s  .  co  m

    KeyGenerator keyGen = KeyGenerator.getInstance("AES");
    keyGen.init(256);
    SecretKey secretKey = keyGen.generateKey();
    String hexkey = Hex.encodeHexString(secretKey.getEncoded());

    Properties prop = new Properties();
    prop.setProperty("owner", owner);
    prop.setProperty("keyName", param.getKeyName());
    prop.setProperty("hexkey", hexkey);
    prop.setProperty("users", param.getUsers());

    File keyFileFolder = new File(env.getProperty("keyfile.path"));
    if (!keyFileFolder.exists()) {
        keyFileFolder.mkdirs();
        Runtime.getRuntime().exec("chmod 700 " + env.getProperty("keyfile.path"));
    }
    prop.store(new FileOutputStream(env.getProperty("keyfile.path") + param.getKeyName()), null);
    Runtime.getRuntime().exec("chmod 600 " + env.getProperty("keyfile.path") + param.getKeyName());
    logger.info("save keyfile \"{}\" to keyfile folder: {}", param.getKeyName(),
            env.getProperty("keyfile.path"));

    return new QueryResult(BeeConstants.ResponseStatus.SUCCESS, "Key(" + param.getKeyName() + ") created",
            null);
}

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From source file:org.sonatype.sisu.encryptor.RsaAesEncryptor.java

public void encrypt(InputStream plainInput, OutputStream encryptedOutput, PublicKey key)
        throws IOException, GeneralSecurityException {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    kgen.init(KEY_SIZE);/* ww  w. j ava2 s .c  om*/

    SecretKey aesKey = kgen.generateKey();

    byte[] data = IOUtil.toByteArray(plainInput);
    byte[] encryptedData = getCipher("AES", aesKey, Cipher.ENCRYPT_MODE).doFinal(data);

    byte[] raw = aesKey.getEncoded();
    byte[] encryptedKey = getCipher("RSA/ECB/PKCS1Padding", key, javax.crypto.Cipher.ENCRYPT_MODE).doFinal(raw);

    // useful when debugging but can't be left uncommented due to NEXUS-2530
    // if ( getLogger().isDebugEnabled() )
    // {
    // log.debug( "before encrypt: " + new String( Base64.encodeBase64( raw ) ) );
    // log.debug( "Encrypted key: " + new String( Base64.encodeBase64( encryptedKey ) ) );
    // log.debug( "Encrypted data: " + new String( Base64.encodeBase64( encryptedData ) ) );
    // }

    Base64OutputStream output = new Base64OutputStream(encryptedOutput);
    IOUtil.copy(encryptedKey, output);
    IOUtil.copy(encryptedData, output);
    output.close();
    encryptedOutput.flush();
}

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From source file:com.projectsontracks.model.CaribooKey.java

/**
 * Creates a new AES key//from   ww w .ja v  a2s.  c  om
 *
 * @throws java.security.NoSuchAlgorithmException
 */
public void createKey() throws NoSuchAlgorithmException {
    // Initialize the key generator
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    kgen.init(this.size);
    // Generates the key
    SecretKey skey = kgen.generateKey();
    // Returns the key in its primary encoding format, or null if this key does not support encoding.
    key = skey.getEncoded();
    //used to construct a SecretKey from a byte array, without having to go through a (provider-based) SecretKeyFactory.
    keySpec = new SecretKeySpec(key, "AES");
}

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From source file:org.kuali.rice.core.impl.encryption.EncryptionServiceImplTest.java

private String generateDESKey() throws Exception {
    KeyGenerator keygen = KeyGenerator.getInstance("DES");
    SecretKey desKey = keygen.generateKey();
    SecretKeyFactory desFactory = SecretKeyFactory.getInstance("DES");
    DESKeySpec desSpec = (DESKeySpec) desFactory.getKeySpec(desKey, javax.crypto.spec.DESKeySpec.class);
    byte[] rawDesKey = desSpec.getKey();
    return new String(Base64.encodeBase64(rawDesKey));
}

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From source file:org.apache.abdera.ext.oauth.OAuthScheme.java

private String sign(String method, String baseString, Certificate cert) throws AuthenticationException {
    if (method.equalsIgnoreCase("HMAC-MD5") || method.equalsIgnoreCase("HMAC-SHA1")) {
        try {//from w ww .  j ava 2 s . c  o m
            String[] tokens = method.split("-");
            String methodName = tokens[0].substring(0, 1).toUpperCase() + tokens[0].substring(1).toLowerCase()
                    + tokens[1];
            KeyGenerator kg = KeyGenerator.getInstance(methodName);

            Mac mac = Mac.getInstance(kg.getAlgorithm());
            mac.init(kg.generateKey());
            byte[] result = mac.doFinal(baseString.getBytes());

            return new String(Base64.encodeBase64(result));
        } catch (Exception e) {
            throw new AuthenticationException(e.getMessage(), e);
        }
    } else if (method.equalsIgnoreCase("md5")) {
        return new String(Base64.encodeBase64(DigestUtils.md5(baseString)));
    } else if (method.equalsIgnoreCase("sha1")) {
        return new String(Base64.encodeBase64(DigestUtils.sha(baseString)));
    } else if (method.equalsIgnoreCase("RSA-SHA1")) {
        if (cert == null) {
            throw new AuthenticationException("a cert is mandatory to use SHA1 with RSA");
        }
        try {
            Cipher cipher = Cipher.getInstance("SHA1withRSA");
            cipher.init(Cipher.ENCRYPT_MODE, cert);
            byte[] result = cipher.doFinal(baseString.getBytes());
            return new String(Base64.encodeBase64(result));
        } catch (Exception e) {
            throw new AuthenticationException(e.getMessage(), e);
        }
    } else {
        throw new AuthenticationException("unsupported algorithm method: " + method);
    }
}

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From source file:org.apache.ws.security.message.SymmetricSignatureTest.java

/**
 * Setup method/* w ww .  ja v  a 2 s .c o m*/
 * <p/>
 * 
 * @throws Exception Thrown when there is a problem in setup
 */
@org.junit.Before
public void setUp() throws Exception {
    KeyGenerator keyGen = KeyGenerator.getInstance("AES");
    keyGen.init(128);
    SecretKey key = keyGen.generateKey();
    keyData = key.getEncoded();
}

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From source file:org.kuali.rice.core.impl.encryption.EncryptionServiceImplTest.java

private String generateDESedeKey() throws Exception {
    KeyGenerator keygen = KeyGenerator.getInstance("DESede");
    SecretKey desedeKey = keygen.generateKey();

    SecretKeyFactory desedeFactory = SecretKeyFactory.getInstance("DESede");
    DESedeKeySpec desedeSpec = (DESedeKeySpec) desedeFactory.getKeySpec(desedeKey,
            javax.crypto.spec.DESedeKeySpec.class);
    byte[] rawDesedeKey = desedeSpec.getKey();
    return new String(Base64.encodeBase64(rawDesedeKey));
}

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From source file:org.codice.ddf.configuration.migration.MigrationZipFileTest.java

private SecretKey createSecretKey(Path keyPath) throws Exception {
    KeyGenerator keyGenerator = null;
    keyGenerator = KeyGenerator.getInstance(MigrationZipConstants.KEY_ALGORITHM);
    SecretKey secretKey = keyGenerator.generateKey();
    char[] hexKey = encodeHex(secretKey.getEncoded());
    writeStringToFile(keyPath.toFile(), String.valueOf(hexKey), Charsets.UTF_8);
    return secretKey;
}

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From source file:org.kuali.rice.krad.devtools.maintainablexml.EncryptionService.java

private SecretKey unwrapEncodedKeyOld(String key) throws Exception {
    KeyGenerator keygen = KeyGenerator.getInstance("DES");
    SecretKey desKey = keygen.generateKey();

    // Create the cipher
    Cipher cipher = Cipher.getInstance(ALGORITHM);
    cipher.init((Cipher.UNWRAP_MODE), desKey);

    byte[] bytes = Base64.decodeBase64(key.getBytes());

    // If decoding was done with commons-codec 1.3 and the key not ended with '='
    bytes[6] = 1;//ww  w . j  a v a  2  s.  c o m
    bytes[7] = 1;

    SecretKeyFactory desFactory = SecretKeyFactory.getInstance("DES");

    DESKeySpec keyspec = new DESKeySpec(bytes);
    SecretKey k = desFactory.generateSecret(keyspec);

    return k;

}

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