Examples with KeyFactory java.security.KeyFactory used on opensource projects

Example 86 with KeyFactory

use of java.security.KeyFactory in project bigbluebutton by bigbluebutton.

the class RSA_SHA1 method getPrivateKeyFromDer.

private PrivateKey getPrivateKeyFromDer(byte[] privateKeyObject) throws GeneralSecurityException {
    KeyFactory fac = KeyFactory.getInstance("RSA");
    EncodedKeySpec privKeySpec = new PKCS8EncodedKeySpec(privateKeyObject);
    return fac.generatePrivate(privKeySpec);
}

Example 87 with KeyFactory

use of java.security.KeyFactory in project bigbluebutton by bigbluebutton.

the class RSA_SHA1 method getPublicKeyFromDer.

private PublicKey getPublicKeyFromDer(byte[] publicKeyObject) throws GeneralSecurityException {
    KeyFactory fac = KeyFactory.getInstance("RSA");
    EncodedKeySpec pubKeySpec = new X509EncodedKeySpec(publicKeyObject);
    return fac.generatePublic(pubKeySpec);
}

Example 88 with KeyFactory

use of java.security.KeyFactory in project gocd by gocd.

the class RegistrationJSONizer method fromJson.

public static Registration fromJson(String json) {
    Map map = GSON.fromJson(json, Map.class);
    if (map.isEmpty()) {
        return Registration.createNullPrivateKeyEntry();
    }
    List<Certificate> chain = new ArrayList<>();
    try {
        PemReader reader = new PemReader(new StringReader((String) map.get("agentPrivateKey")));
        KeyFactory kf = KeyFactory.getInstance("RSA");
        PKCS8EncodedKeySpec spec = new PKCS8EncodedKeySpec(reader.readPemObject().getContent());
        PrivateKey privateKey = kf.generatePrivate(spec);
        String agentCertificate = (String) map.get("agentCertificate");
        PemReader certReader = new PemReader(new StringReader(agentCertificate));
        while (true) {
            PemObject obj = certReader.readPemObject();
            if (obj == null) {
                break;
            }
            chain.add(CertificateFactory.getInstance("X.509").generateCertificate(new ByteArrayInputStream(obj.getContent())));
        }
        return new Registration(privateKey, chain.toArray(new Certificate[chain.size()]));
    } catch (IOException | NoSuchAlgorithmException | CertificateException | InvalidKeySpecException e) {
        throw bomb(e);
    }
}

Example 89 with KeyFactory

use of java.security.KeyFactory in project cardslib by gabrielemariotti.

the class Security method generatePublicKey.

/**
     * Generates a PublicKey instance from a string containing the
     * Base64-encoded public key.
     *
     * @param encodedPublicKey Base64-encoded public key
     * @throws IllegalArgumentException if encodedPublicKey is invalid
     */
public static PublicKey generatePublicKey(String encodedPublicKey) {
    try {
        byte[] decodedKey = Base64.decode(encodedPublicKey);
        KeyFactory keyFactory = KeyFactory.getInstance(KEY_FACTORY_ALGORITHM);
        return keyFactory.generatePublic(new X509EncodedKeySpec(decodedKey));
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    } catch (InvalidKeySpecException e) {
        Log.e(TAG, "Invalid key specification.");
        throw new IllegalArgumentException(e);
    } catch (Base64DecoderException e) {
        Log.e(TAG, "Base64 decoding failed.");
        throw new IllegalArgumentException(e);
    }
}

Example 90 with KeyFactory

use of java.security.KeyFactory in project j2objc by google.

the class RSAPrivateKeyTest method test_getPrivateExponent.

/**
     * java.security.interfaces.RSAPrivateKey
     * #getPrivateExponent()
     */
public void test_getPrivateExponent() throws Exception {
    KeyFactory gen = KeyFactory.getInstance("RSA");
    final BigInteger n = BigInteger.valueOf(3233);
    final BigInteger d = BigInteger.valueOf(2753);
    RSAPrivateKey key = (RSAPrivateKey) gen.generatePrivate(new RSAPrivateKeySpec(n, d));
    assertEquals("invalid private exponent", d, key.getPrivateExponent());
}