Example usage for java.security KeyFactory getInstance

List of usage examples for java.security KeyFactory getInstance

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Introduction

In this page you can find the example usage for java.security KeyFactory getInstance.

Prototype

public static KeyFactory getInstance(String algorithm) throws NoSuchAlgorithmException

Source Link

Document

Returns a KeyFactory object that converts public/private keys of the specified algorithm.

Usage

From source file:com.axelor.apps.account.service.payment.PayboxService.java

/** Chargement de la cle AU FORMAT der
  * Utliser la commande suivante pour 'convertir' la cl 'pem' en 'der'
  * openssl rsa -inform PEM -in pubkey.pem -outform DER -pubin -out pubkey.der
  */*from  ww  w.ja  va2  s . co  m*/
  * @param pubKeyFile
  * @return
  * @throws Exception
  */
@Deprecated
private PublicKey getPubKeyDer(String pubKeyPath) throws Exception {

    FileInputStream fis = new FileInputStream(pubKeyPath);
    DataInputStream dis = new DataInputStream(fis);

    byte[] pubKeyBytes = new byte[fis.available()];

    dis.readFully(pubKeyBytes);
    fis.close();
    dis.close();

    KeyFactory keyFactory = KeyFactory.getInstance(this.ENCRYPTION_ALGORITHM);

    // extraction cle
    X509EncodedKeySpec pubSpec = new X509EncodedKeySpec(pubKeyBytes);
    return keyFactory.generatePublic(pubSpec);

}

From source file:com.mastercard.mcbp.utils.crypto.CryptoServiceImpl.java

/**
 * {@inheritDoc}/*from   www .  j a v  a  2s.  co  m*/
 */
@Override
public final ByteArray encryptRandomGeneratedKey(ByteArray key, ByteArray data) throws McbpCryptoException {
    ByteArray result;
    try {
        Cipher cipher = Cipher.getInstance("RSA/ECB/OAEPWithSHA-256AndMGF1Padding");

        X509EncodedKeySpec x509EncodedKeySpec = new X509EncodedKeySpec(ByteArray.of(key).getBytes());

        cipher.init(Cipher.ENCRYPT_MODE, KeyFactory.getInstance("RSA").generatePublic(x509EncodedKeySpec));

        result = ByteArray.of(cipher.doFinal(data.getBytes()));
    } catch (NoSuchAlgorithmException | InvalidKeySpecException | NoSuchPaddingException | InvalidKeyException
            | BadPaddingException | IllegalBlockSizeException e) {
        throw new McbpCryptoException(e.getMessage());
    }
    return result;
}

From source file:biz.bokhorst.xprivacy.Util.java

private static PublicKey getPublicKey(Context context) throws Throwable {
    // Read public key
    String sPublicKey = "";
    InputStreamReader isr = new InputStreamReader(context.getAssets().open("XPrivacy_public_key.txt"), "UTF-8");
    BufferedReader br = new BufferedReader(isr);
    String line = br.readLine();/*from ww w .ja v  a  2s  .c o m*/
    while (line != null) {
        if (!line.startsWith("-----"))
            sPublicKey += line;
        line = br.readLine();
    }
    br.close();
    isr.close();

    // Create public key
    byte[] bPublicKey = Base64.decode(sPublicKey, Base64.NO_WRAP);
    KeyFactory keyFactory = KeyFactory.getInstance("RSA");
    X509EncodedKeySpec encodedPubKeySpec = new X509EncodedKeySpec(bPublicKey);
    return keyFactory.generatePublic(encodedPubKeySpec);
}

From source file:com.orange.oidc.tim.service.KryptoUtils.java

public static String getJwkPublic(KeyPair kp) {
    try {//from w  w  w.ja  v  a 2s  .  co m
        JSONObject jk = new JSONObject();
        jk.put("kty", "RSA");
        // generate random kid for tim_app_key
        SecureRandom random = new SecureRandom();
        String kid = new BigInteger(130, random).toString(32);
        jk.put("kid", kid);
        jk.put("e", "AQAB");

        KeyFactory kfactory = KeyFactory.getInstance("RSA");

        RSAPublicKeySpec kspec = (RSAPublicKeySpec) kfactory.getKeySpec(kp.getPublic(), RSAPublicKeySpec.class);

        jk.put("n", encodeB64(kspec.getModulus().toByteArray()));
        JSONArray ja = new JSONArray();
        ja.put(jk);
        JSONObject jo = new JSONObject();
        jo.put("keys", ja);

        // Log.d("getJwkPublic key: ",pubkey.toString());
        // Log.d("getJwkPublic jwk: ",jo.toString());

        return jo.toString();

    } catch (Exception e) {
        e.printStackTrace();
    }

    return null;
}

From source file:com.arm.connector.bridge.core.Utils.java

static public PrivateKey createPrivateKeyFromPEM(ErrorLogger logger, String pem, String algorithm) {
    try {/*from  w  w  w  . j  a  v  a2 s  . c  om*/
        String temp = Utils.escapeChars(pem);
        String privKeyPEM = temp.replace("-----BEGIN RSA PRIVATE KEY-----", "");
        privKeyPEM = privKeyPEM.replace("-----END RSA PRIVATE KEY-----", "");

        // DEBUG
        //logger.info("createPrivateKeyFromPEM: " + privKeyPEM);

        Base64 b64 = new Base64();
        byte[] decoded = b64.decode(privKeyPEM);

        PKCS8EncodedKeySpec spec = new PKCS8EncodedKeySpec(decoded);
        KeyFactory kf = KeyFactory.getInstance(algorithm);
        return kf.generatePrivate(spec);
    } catch (NoSuchAlgorithmException | InvalidKeySpecException ex) {
        // exception caught
        logger.warning("createPrivateKeyFromPEM: Exception during private key gen", ex);
    }
    return null;
}

From source file:com.wso2telco.proxy.entity.ServerInitiatedServiceEndpoints.java

private RSAPublicKey loadPublicKey(String publicKeyContent) throws GeneralSecurityException {
    KeyFactory kf = KeyFactory.getInstance("RSA");
    X509EncodedKeySpec pubSpec = new X509EncodedKeySpec(Base64.getDecoder().decode(publicKeyContent));
    return (RSAPublicKey) kf.generatePublic(pubSpec);
}

From source file:com.orange.oidc.tim.service.KryptoUtils.java

public static String getJwkPrivate(KeyPair kp) {
    try {/* ww  w.  j a v  a2s  .c om*/
        JSONObject jk = new JSONObject();
        jk.put("kty", "RSA");
        // generate random kid for tim_app_key
        SecureRandom random = new SecureRandom();
        String kid = new BigInteger(130, random).toString(32);
        jk.put("kid", kid);
        jk.put("e", "AQAB");

        KeyFactory kfactory = KeyFactory.getInstance("RSA");

        RSAPrivateKeySpec privkspec = (RSAPrivateKeySpec) kfactory.getKeySpec(kp.getPrivate(),
                RSAPrivateKeySpec.class);
        RSAPublicKeySpec pubkspec = (RSAPublicKeySpec) kfactory.getKeySpec(kp.getPublic(),
                RSAPublicKeySpec.class);

        // Log.d("getJwkPrivate n",pubkspec.getPublicExponent().toString());
        // Log.d("getJwkPrivate d",privkspec.getPrivateExponent().toString());

        jk.put("n", encodeB64(pubkspec.getModulus().toByteArray()));
        jk.put("d", encodeB64(privkspec.getPrivateExponent().toByteArray()));
        JSONArray ja = new JSONArray();
        ja.put(jk);
        JSONObject jo = new JSONObject();
        jo.put("keys", ja);

        return jo.toString();

    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

From source file:com.fujitsu.dc.common.auth.token.TransCellAccessToken.java

/**
 * X509??./*from www. j ava  2s.c  o  m*/
 * @param privateKeyFileName ???
 * @param certificateFileName ??
 * @param rootCertificateFileNames ??
 * @throws IOException IOException
 * @throws NoSuchAlgorithmException NoSuchAlgorithmException
 * @throws InvalidKeySpecException InvalidKeySpecException
 * @throws CertificateException CertificateException
 */
public static void configureX509(String privateKeyFileName, String certificateFileName,
        String[] rootCertificateFileNames)
        throws IOException, NoSuchAlgorithmException, InvalidKeySpecException, CertificateException {

    xmlSignatureFactory = XMLSignatureFactory.getInstance("DOM");

    // Read RootCA Certificate
    x509RootCertificateFileNames = new ArrayList<String>();
    if (rootCertificateFileNames != null) {
        for (String fileName : rootCertificateFileNames) {
            x509RootCertificateFileNames.add(fileName);
        }
    }

    // Read Private Key
    InputStream is = null;
    if (privateKeyFileName == null) {
        is = TransCellAccessToken.class.getClassLoader()
                .getResourceAsStream(X509KeySelector.DEFAULT_SERVER_KEY_PATH);
    } else {
        is = new FileInputStream(privateKeyFileName);
    }

    PEMReader privateKeyPemReader = new PEMReader(is);
    byte[] privateKeyDerBytes = privateKeyPemReader.getDerBytes();
    PKCS1EncodedKeySpec keySpecRSAPrivateKey = new PKCS1EncodedKeySpec(privateKeyDerBytes);
    KeyFactory keyFactory = KeyFactory.getInstance("RSA");
    privKey = keyFactory.generatePrivate(keySpecRSAPrivateKey.getKeySpec());

    // Read Certificate
    if (certificateFileName == null) {
        is = TransCellAccessToken.class.getClassLoader()
                .getResourceAsStream(X509KeySelector.DEFAULT_SERVER_CRT_PATH);
    } else {
        is = new FileInputStream(certificateFileName);
    }
    PEMReader serverCertificatePemReader;
    serverCertificatePemReader = new PEMReader(is);
    byte[] serverCertificateBytesCert = serverCertificatePemReader.getDerBytes();
    CertificateFactory cf = CertificateFactory.getInstance(X509KeySelector.X509KEY_TYPE);
    x509Certificate = (X509Certificate) cf
            .generateCertificate(new ByteArrayInputStream(serverCertificateBytesCert));

    // Create the KeyInfo containing the X509Data
    KeyInfoFactory keyInfoFactory = xmlSignatureFactory.getKeyInfoFactory();
    List x509Content = new ArrayList();
    x509Content.add(x509Certificate.getSubjectX500Principal().getName());
    x509Content.add(x509Certificate);
    X509Data xd = keyInfoFactory.newX509Data(x509Content);
    keyInfo = keyInfoFactory.newKeyInfo(Collections.singletonList(xd));

    // http://java.sun.com/developer/technicalArticles/xml/dig_signature_api/

}

From source file:com.arm.connector.bridge.core.Utils.java

static public PublicKey createPublicKeyFromPEM(ErrorLogger logger, String pem, String algorithm) {
    try {//from www.  j a  v a2 s  .co  m
        String temp = Utils.escapeChars(pem);
        String publicKeyPEM = temp.replace("-----BEGIN PUBLIC KEY-----", "");
        publicKeyPEM = publicKeyPEM.replace("-----END PUBLIC KEY-----", "");

        // DEBUG
        //logger.info("createPublicKeyFromPEM: " + publicKeyPEM);

        Base64 b64 = new Base64();
        byte[] decoded = b64.decode(publicKeyPEM);

        X509EncodedKeySpec spec = new X509EncodedKeySpec(decoded);
        KeyFactory kf = KeyFactory.getInstance(algorithm);
        return kf.generatePublic(spec);
    } catch (NoSuchAlgorithmException | InvalidKeySpecException ex) {
        // exception caught
        logger.warning("createPublicKeyFromPEM: Exception during public key gen", ex);
    }
    return null;
}

From source file:io.personium.common.auth.token.TransCellAccessToken.java

/**
 * X509??.//w ww .j a  v  a2s.  c o  m
 * @param privateKeyFileName ???
 * @param certificateFileName ??
 * @param rootCertificateFileNames ??
 * @throws IOException IOException
 * @throws NoSuchAlgorithmException NoSuchAlgorithmException
 * @throws InvalidKeySpecException InvalidKeySpecException
 * @throws CertificateException CertificateException
 * @throws InvalidNameException InvalidNameException
 */
public static void configureX509(String privateKeyFileName, String certificateFileName,
        String[] rootCertificateFileNames) throws IOException, NoSuchAlgorithmException,
        InvalidKeySpecException, CertificateException, InvalidNameException {

    xmlSignatureFactory = XMLSignatureFactory.getInstance("DOM");

    // Read RootCA Certificate
    x509RootCertificateFileNames = new ArrayList<String>();
    if (rootCertificateFileNames != null) {
        for (String fileName : rootCertificateFileNames) {
            x509RootCertificateFileNames.add(fileName);
        }
    }

    // Read Private Key
    InputStream is = null;
    if (privateKeyFileName == null) {
        is = TransCellAccessToken.class.getClassLoader()
                .getResourceAsStream(X509KeySelector.DEFAULT_SERVER_KEY_PATH);
    } else {
        is = new FileInputStream(privateKeyFileName);
    }

    PEMReader privateKeyPemReader = new PEMReader(is);
    byte[] privateKeyDerBytes = privateKeyPemReader.getDerBytes();
    PKCS1EncodedKeySpec keySpecRSAPrivateKey = new PKCS1EncodedKeySpec(privateKeyDerBytes);
    KeyFactory keyFactory = KeyFactory.getInstance("RSA");
    privKey = keyFactory.generatePrivate(keySpecRSAPrivateKey.getKeySpec());

    // Read Certificate
    if (certificateFileName == null) {
        is = TransCellAccessToken.class.getClassLoader()
                .getResourceAsStream(X509KeySelector.DEFAULT_SERVER_CRT_PATH);
    } else {
        is = new FileInputStream(certificateFileName);
    }
    PEMReader serverCertificatePemReader;
    serverCertificatePemReader = new PEMReader(is);
    byte[] serverCertificateBytesCert = serverCertificatePemReader.getDerBytes();
    CertificateFactory cf = CertificateFactory.getInstance(X509KeySelector.X509KEY_TYPE);
    x509Certificate = (X509Certificate) cf
            .generateCertificate(new ByteArrayInputStream(serverCertificateBytesCert));

    // Create the KeyInfo containing the X509Data
    KeyInfoFactory keyInfoFactory = xmlSignatureFactory.getKeyInfoFactory();
    List x509Content = new ArrayList();
    x509Content.add(x509Certificate.getSubjectX500Principal().getName());
    x509Content.add(x509Certificate);
    X509Data xd = keyInfoFactory.newX509Data(x509Content);
    keyInfo = keyInfoFactory.newKeyInfo(Collections.singletonList(xd));

    // Get FQDN from Certificate and set FQDN to PersoniumCoreUtils
    String dn = x509Certificate.getSubjectX500Principal().getName();
    LdapName ln = new LdapName(dn);
    for (Rdn rdn : ln.getRdns()) {
        if (rdn.getType().equalsIgnoreCase("CN")) {
            PersoniumCoreUtils.setFQDN(rdn.getValue().toString());
            break;
        }
    }

    // http://java.sun.com/developer/technicalArticles/xml/dig_signature_api/

}