Example usage for java.security PublicKey getEncoded

Introduction

In this page you can find the example usage for java.security PublicKey getEncoded.

Prototype

public byte[] getEncoded();

Source Link

Document

Returns the key in its primary encoding format, or null if this key does not support encoding.

Usage

From source file:com.sixsq.slipstream.cookie.CryptoUtils.java

static private String savePublicKey(PublicKey publicKey) throws GeneralSecurityException {
    byte[] publicKeyBytes = publicKey.getEncoded();
    String publicKeyStr = new Base64().encodeToString(publicKeyBytes);
    return publicKeyStr;
}

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From source file:org.cloudfoundry.identity.uaa.oauth.jwk.JsonWebKey.java

public static String pemEncodePublicKey(PublicKey publicKey) {
    String begin = "-----BEGIN PUBLIC KEY-----\n";
    String end = "\n-----END PUBLIC KEY-----";
    byte[] data = publicKey.getEncoded();
    String base64encoded = new String(new Base64(false).encode(data));
    return begin + base64encoded + end;
}

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From source file:com.vexsoftware.votifier.util.rsa.RSAIO.java

/**
 * Saves the key pair to the disk.//from  w w  w.j  a va 2  s  . co  m
 * 
 * @param directory
 *            The directory to save to
 * @param keyPair
 *            The key pair to save
 * @throws Exception
 *            If an error occurs
 */
public static void save(File directory, KeyPair keyPair) throws Exception {
    PrivateKey privateKey = keyPair.getPrivate();
    PublicKey publicKey = keyPair.getPublic();

    // Store the public key.
    X509EncodedKeySpec publicSpec = new X509EncodedKeySpec(publicKey.getEncoded());
    FileOutputStream out = null;
    try {
        out = new FileOutputStream(directory + "/public.key");
        out.write(DatatypeConverter.printBase64Binary(publicSpec.getEncoded()).getBytes());
    } finally {
        try {
            out.close();
        } catch (Exception exception) {
            // ignore
        }
    }

    // Store the private key.
    PKCS8EncodedKeySpec privateSpec = new PKCS8EncodedKeySpec(privateKey.getEncoded());
    try {
        out = new FileOutputStream(directory + "/private.key");
        out.write(DatatypeConverter.printBase64Binary(privateSpec.getEncoded()).getBytes());
    } finally {
        try {
            out.close();
        } catch (Exception exception) {
            // ignore
        }
    }
}

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From source file:net.arccotangent.pacchat.filesystem.KeyManager.java

private static void saveKeys(PrivateKey privkey, PublicKey pubkey) {
    km_log.i("Saving keys to disk.");

    X509EncodedKeySpec pubSpec = new X509EncodedKeySpec(pubkey.getEncoded());
    PKCS8EncodedKeySpec privSpec = new PKCS8EncodedKeySpec(privkey.getEncoded());

    try {/*from w  w w.  ja va  2s  . com*/
        km_log.i(pubkeyFile.createNewFile() ? "Creation of public key file successful."
                : "Creation of public key file failed!");

        FileOutputStream pubOut = new FileOutputStream(pubkeyFile);
        pubOut.write(Base64.encodeBase64(pubSpec.getEncoded()));
        pubOut.flush();
        pubOut.close();

    } catch (IOException e) {
        km_log.e("Error while saving public key!");
        e.printStackTrace();
    }

    try {
        km_log.i(privkeyFile.createNewFile() ? "Creation of private key file successful."
                : "Creation of private key file failed!");

        FileOutputStream privOut = new FileOutputStream(privkeyFile);
        privOut.write(Base64.encodeBase64(privSpec.getEncoded()));
        privOut.flush();
        privOut.close();

    } catch (IOException e) {
        km_log.e("Error while saving private key!");
        e.printStackTrace();
    }

    km_log.i("Finished saving keys to disk. Operation appears successful.");
}

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From source file:net.arccotangent.pacchat.filesystem.KeyManager.java

@SuppressWarnings("ResultOfMethodCallIgnored")
public static void saveKeyByIP(String ip_address, PublicKey publicKey) {
    km_log.i("Saving public key for " + ip_address);
    X509EncodedKeySpec pubSpec = new X509EncodedKeySpec(publicKey.getEncoded());
    File pubFile = new File(installationPath + File.separator + ip_address + ".pub");

    km_log.i("Deleting old key if it exists.");
    if (pubFile.exists())
        pubFile.delete();/*from   w w w . java 2  s  .co  m*/

    try {
        km_log.i(pubFile.createNewFile() ? "Creation of public key file successful."
                : "Creation of public key file failed!");

        FileOutputStream pubOut = new FileOutputStream(pubFile);
        pubOut.write(Base64.encodeBase64(pubSpec.getEncoded()));
        pubOut.flush();
        pubOut.close();

    } catch (IOException e) {
        km_log.e("Error while saving public key for " + ip_address + "!");
        e.printStackTrace();
    }
}

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From source file:net.link.util.test.pkix.PkiTestUtils.java

@SuppressWarnings("IOResourceOpenedButNotSafelyClosed")
private static SubjectKeyIdentifier createSubjectKeyId(PublicKey publicKey) throws IOException {

    ByteArrayInputStream bais = new ByteArrayInputStream(publicKey.getEncoded());
    SubjectPublicKeyInfo info = new SubjectPublicKeyInfo((ASN1Sequence) new ASN1InputStream(bais).readObject());
    return new SubjectKeyIdentifier(info);
}

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From source file:net.link.util.test.pkix.PkiTestUtils.java

@SuppressWarnings("IOResourceOpenedButNotSafelyClosed")
private static AuthorityKeyIdentifier createAuthorityKeyId(PublicKey publicKey) throws IOException {

    ByteArrayInputStream bais = new ByteArrayInputStream(publicKey.getEncoded());
    SubjectPublicKeyInfo info = new SubjectPublicKeyInfo((ASN1Sequence) new ASN1InputStream(bais).readObject());

    return new AuthorityKeyIdentifier(info);
}

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From source file:org.apache.sshd.server.PublickeyAuthenticatorUtils.java

/**
 * @param entries A {@link Collection} of {@link CryptoKeyEntry}-ies
 * @return A {@link PublickeyAuthenticator} that matches the received encoded
 * public key bytes to one of the authorized keys published by the user
 * @see CryptoKeyEntry#readAuthorizedKeys(File)
 *//*from   ww w  .j  av  a 2  s  .c om*/
public static final PublickeyAuthenticator authorizedKeysAuthenticator(
        Collection<? extends CryptoKeyEntry> entries) {
    final Map<String, ? extends Collection<CryptoKeyEntry>> keysMap = ExtendedMapUtils.mapCollectionMultiValues(
            CryptoKeyEntry.USERNAME_EXTRACTOR, ExtendedCollectionUtils.<CryptoKeyEntry>linkedListFactory(),
            entries);
    return new PublickeyAuthenticator() {
        @Override
        public boolean authenticate(String username, PublicKey key, ServerSession session) {
            Collection<CryptoKeyEntry> keySet = keysMap.get(username);
            if (ExtendedCollectionUtils.isEmpty(keySet)) {
                return false;
            }

            final byte[] keyBytes = key.getEncoded();
            if (ArrayUtils.isEmpty(keyBytes)) {
                return false; // TODO consider throwing an exception
            }

            CryptoKeyEntry entry = CollectionUtils.find(keySet,
                    new AbstractExtendedPredicate<CryptoKeyEntry>(CryptoKeyEntry.class) {
                        @Override
                        public boolean evaluate(CryptoKeyEntry e) {
                            byte[] entryBytes = e.getKeyData();
                            if (Arrays.equals(keyBytes, entryBytes)) {
                                return true;
                            } else {
                                return false; // debug breakpoint;
                            }
                        }
                    });
            if (entry == null) {
                return false;
            } else {
                return true;
            }
        }
    };
}

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From source file:com.znsx.util.licence.LicenceUtil.java

/**
 * ??// w w w  .  j  a v a 2s  .  c om
 * 
 * @param seed
 *            ??
 * @return
 * @throws Exception
 */
public static Map<String, String> generateKey(String seed) throws Exception {
    Map<String, String> map = new HashMap<String, String>(2);
    KeyPairGenerator keygen = KeyPairGenerator.getInstance("DSA");
    SecureRandom random = new SecureRandom();
    random.setSeed(seed.getBytes("utf8"));
    keygen.initialize(1024, random);

    KeyPair keyPair = keygen.generateKeyPair();
    PublicKey publicKey = keyPair.getPublic();
    PrivateKey privateKey = keyPair.getPrivate();

    Base64 base64 = new Base64();
    String publicKeyString = new String(base64.encode(publicKey.getEncoded()), "utf8");
    String privateKeyString = new String(base64.encode(privateKey.getEncoded()), "utf8");
    // BASE64Encoder encoder = new BASE64Encoder();
    // map.put("public", encoder.encode(publicKey.getEncoded()));
    // map.put("private", encoder.encode(privateKey.getEncoded()));
    map.put("public", publicKeyString);
    map.put("private", privateKeyString);

    System.out.println("publicKey: " + map.get("public"));
    System.out.println("privateKey: " + map.get("private"));
    return map;
}

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From source file:org.kaaproject.kaa.common.endpoint.security.KeyUtil.java

/**
 * Saves public and private keys to specified streams.
 *
 * @param keyPair          the key pair//from w w w .j a v  a  2s  .  c om
 * @param privateKeyOutput the private key output stream
 * @param publicKeyOutput  the public key output stream
 * @throws IOException Signals that an I/O exception has occurred.
 */
public static void saveKeyPair(KeyPair keyPair, OutputStream privateKeyOutput, OutputStream publicKeyOutput)
        throws IOException {
    PrivateKey privateKey = keyPair.getPrivate();
    PublicKey publicKey = keyPair.getPublic();

    // Store Public Key.
    X509EncodedKeySpec x509EncodedKeySpec = new X509EncodedKeySpec(publicKey.getEncoded());
    publicKeyOutput.write(x509EncodedKeySpec.getEncoded());

    // Store Private Key.
    PKCS8EncodedKeySpec pkcs8EncodedKeySpec = new PKCS8EncodedKeySpec(privateKey.getEncoded());
    privateKeyOutput.write(pkcs8EncodedKeySpec.getEncoded());
}

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