Example usage for java.security KeyFactory generatePrivate

List of usage examples for java.security KeyFactory generatePrivate

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Introduction

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

Prototype

public final PrivateKey generatePrivate(KeySpec keySpec) throws InvalidKeySpecException

Source Link

Document

Generates a private key object from the provided key specification (key material).

Usage

From source file:org.jboss.aerogear.cordova.crypto.CryptoPlugin.java

private java.security.KeyPair parseKeyPairFromJson(byte[] encodedPublicKey, byte[] encodedPrivateKey) {
    try {/*from   www  .  j  ava 2s.  c o  m*/
        KeyFactory fact = KeyFactory.getInstance("ECDH", AeroGearCrypto.PROVIDER);
        PublicKey publicKey2 = fact.generatePublic(new X509EncodedKeySpec(encodedPublicKey));
        java.security.PrivateKey privateKey2 = fact.generatePrivate(new PKCS8EncodedKeySpec(encodedPrivateKey));
        return new java.security.KeyPair(publicKey2, privateKey2);
    } catch (InvalidKeySpecException e) {
        throw new RuntimeException("could not reconstruct key pair from json!", e);
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException("could not reconstruct key pair from json!", e);
    } catch (NoSuchProviderException e) {
        throw new RuntimeException("could not reconstruct key pair from json!", e);
    }
}

From source file:com.xinferin.licensing.LicenceGenerator.java

/**
 * Main method to initialise the private key from the database
 * @throws Exception/*from w w w  .  ja  v a2  s.  co  m*/
 */
private void initialisePrivateKey() throws Exception {

    if (encodedPrivateKey == null)
        throw new Exception("An encoded Base64 private key has not been specified.");

    try {
        //Read key files back and decode them from BASE64
        byte[] privateKeyBytes = Base64.decodeBase64(encodedPrivateKey);

        // Convert back to public and private key objects
        KeyFactory keyFactory = KeyFactory.getInstance("RSA");
        EncodedKeySpec privateKeySpec = new PKCS8EncodedKeySpec(privateKeyBytes);
        privateKey = keyFactory.generatePrivate(privateKeySpec);

    } catch (InvalidKeySpecException e) {
        throw new Exception("Invalid key specifications. Not a valid key entry." + e.getCause());
    } catch (NoSuchAlgorithmException e) {
        throw new Exception("There is no such algorithm. Please check the JDK ver." + e.getCause());
    }
}

From source file:de.tum.in.tumcampus.services.GcmIntentService.java

/**
 * Loads the private key from preferences
 *
 * @return The private key object// w  w  w  .  j a v  a2s.c o m
 */
private PrivateKey getPrivateKeyFromSharedPrefs() {
    String privateKeyString = Utils.getInternalSettingString(this, Const.PRIVATE_KEY, "");
    byte[] privateKeyBytes = Base64.decode(privateKeyString, Base64.DEFAULT);
    KeyFactory keyFactory;
    try {
        keyFactory = KeyFactory.getInstance("RSA");
        PKCS8EncodedKeySpec privateKeySpec = new PKCS8EncodedKeySpec(privateKeyBytes);
        return keyFactory.generatePrivate(privateKeySpec);
    } catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
        Utils.log(e);
    }
    return null;
}

From source file:org.springframework.boot.actuate.autoconfigure.cloudfoundry.reactive.ReactiveTokenValidatorTests.java

private PrivateKey getPrivateKey() throws InvalidKeySpecException, NoSuchAlgorithmException {
    String signingKey = "-----BEGIN PRIVATE KEY-----\n"
            + "MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQDSbn2Xa72IOcxu\n"
            + "tcd+qQ6ufZ1VDe98EmpwO4VQrTd37U9kZtWU0KqeSkgnyzIWmlbyWOdbB4/v4uJa\n"
            + "lGjPQjt9hvd3xOOFXzpj33sWXgMGvGAzopMk64T+7GegOFlDXguA5TZyReM7M51O\n"
            + "ycYwpAEsKXS+lxcG0UsxpJum/WjOLyHsMnJVnoScVBlRYZ2BMyEOuap69/H3lT/X\n"
            + "pzlYEM6SrAifsaWvL2f1K7HKBt/yDkDOlZy6xmAMsghnslNSV0FvypTZrQOXia8t\n"
            + "k6fjA+iN+P0LDZAgKxzn4/B/bV8/6HN/7VZJEdudi/y5qdE7SBnx6QZqCEz/YfqC\n"
            + "olujacgnAgMBAAECggEAc9X2tJ/OWWrXqinOg160gkELloJxTi8lAFsDbAGuAwpT\n"
            + "JcWl1KF5CmGBjsY/8ElNi2J9GJL1HOwcBhikCVNARD1DhF6RkB13mvquWwWtTMvt\n"
            + "eP8JWM19DIc+E+hw2rCuTGngqs7l4vTqpzBTNPtS2eiIJ1IsjsgvSEiAlk/wnW48\n"
            + "11cf6SQMQcT3HNTWrS+yLycEuWKb6Khh8RpD9D+i8w2+IspWz5lTP7BrKCUNsLOx\n"
            + "6+5T52HcaZ9z3wMnDqfqIKWl3h8M+q+HFQ4EN5BPWYV4fF7EOx7+Qf2fKDFPoTjC\n"
            + "VTWzDRNAA1xPqwdF7IdPVOXCdaUJDOhHeXZGaTNSwQKBgQDxb9UiR/Jh1R3muL7I\n"
            + "neIt1gXa0O+SK7NWYl4DkArYo7V81ztxI8r+xKEeu5zRZZkpaJHxOnd3VfADascw\n"
            + "UfALvxGxN2z42lE6zdhrmxZ3ma+akQFsv7NyXcBT00sdW+xmOiCaAj0cgxNOXiV3\n"
            + "sYOwUy3SqUIPO2obpb+KC5ALHwKBgQDfH+NSQ/jn89oVZ3lzUORa+Z+aL1TGsgzs\n"
            + "p7IG0MTEYiR9/AExYUwJab0M4PDXhumeoACMfkCFALNVhpch2nXZv7X5445yRgfD\n"
            + "ONY4WknecuA0rfCLTruNWnQ3RR+BXmd9jD/5igd9hEIawz3V+jCHvAtzI8/CZIBt\n"
            + "AArBs5kp+QKBgQCdxwN1n6baIDemK10iJWtFoPO6h4fH8h8EeMwPb/ZmlLVpnA4Q\n"
            + "Zd+mlkDkoJ5eiRKKaPfWuOqRZeuvj/wTq7g/NOIO+bWQ+rrSvuqLh5IrHpgPXmub\n"
            + "8bsHJhUlspMH4KagN6ROgOAG3fGj6Qp7KdpxRCpR3KJ66czxvGNrhxre6QKBgB+s\n"
            + "MCGiYnfSprd5G8VhyziazKwfYeJerfT+DQhopDXYVKPJnQW8cQW5C8wDNkzx6sHI\n"
            + "pqtK1K/MnKhcVaHJmAcT7qoNQlA4Xqu4qrgPIQNBvU/dDRNJVthG6c5aspEzrG8m\n"
            + "9IHgtRV9K8EOy/1O6YqrB9kNUVWf3JccdWpvqyNJAoGAORzJiQCOk4egbdcozDTo\n"
            + "4Tg4qk/03qpTy5k64DxkX1nJHu8V/hsKwq9Af7Fj/iHy2Av54BLPlBaGPwMi2bzB\n"
            + "gYjmUomvx/fqOTQks9Rc4PIMB43p6Rdj0sh+52SKPDR2eHbwsmpuQUXnAs20BPPI\n"
            + "J/OOn5zOs8yf26os0q3+JUM=\n-----END PRIVATE KEY-----";
    String privateKey = signingKey.replace("-----BEGIN PRIVATE KEY-----\n", "");
    privateKey = privateKey.replace("-----END PRIVATE KEY-----", "");
    byte[] pkcs8EncodedBytes = Base64.decodeBase64(privateKey);
    PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(pkcs8EncodedBytes);
    KeyFactory keyFactory = KeyFactory.getInstance("RSA");
    return keyFactory.generatePrivate(keySpec);
}

From source file:org.mitre.jwt.JwtTest.java

/**
 * @throws Exception/*from w  ww .  ja v a  2 s  . c  om*/
 */
@Test
public void testGenerateRsaSignature() throws Exception {

    // Hard code the private/public key so as not to depend on it being in
    // the keystore...

    RSAPrivateKeySpec privateSpec = new RSAPrivateKeySpec(new BigInteger(
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
            16),
            new BigInteger(
                    "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",
                    16));

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

    PrivateKey privateKey = keyFactory.generatePrivate(privateSpec);

    RSAPublicKeySpec publicSpec = new RSAPublicKeySpec(new BigInteger(
            "AD6E684550542947AD95EF9BACDC0AC2C9168C6EB3212D378C23E5539266111DB2E5B4D42B1E47EB4F7A65DB63D9782C72BC365492FD1E5C7B4CD2174C611668C29013FEDE22619B3F58DA3531BB6C02B3266768B7895CBDAFB3F9AC7A7B2F3DB17EF4DCF03BD2575604BDE0A01BB1FB7B0E733AD63E464DB4D7D89626297A214D7CECCD0C50421A322A01E9DCEA23443F6A9339576B31DFA504A133076394562CB57F3FDEDB26F9A82BED2F6D52D6F6BF8286E2497EF0B5C8456F32B4668F5A9F5FCD3781345DDDB749792C37238A53D18FD976C0C9D1F1E211F1A4A9AAE679C45B92D1741EF0D3C3F373232CE7FB93E9BC461E1C508A20B74E7E3361B3C527",
            16), new BigInteger("10001", 16));

    PublicKey publicKey = keyFactory.generatePublic(publicSpec);

    Jwt jwt = new Jwt();
    jwt.getHeader().setType("JWT");
    jwt.getHeader().setAlgorithm("RS256");
    jwt.getClaims().setExpiration(new Date(1300819380L * 1000L));
    jwt.getClaims().setIssuer("joe");
    jwt.getClaims().setClaim("http://example.com/is_root", Boolean.TRUE);

    JwtSigner signer = new RsaSigner(JwsAlgorithm.RS256.getJwaName(), publicKey, privateKey);
    ((RsaSigner) signer).afterPropertiesSet();

    /*
     * Expected string based on the following structures, serialized exactly
     * as follows and base64 encoded:
     * 
     * header: {"typ":"JWT","alg":"HS256"} claims:
     * {"exp":1300819380,"iss":"joe","http://example.com/is_root":true}
     * 
     * Expected signature: dSRvtD-ExzGN-
     * fRXd1wRZOPo1JFPuqgwvaIKp8jgcyMXJegy6IUjssfUfUcICN5yvh0ggOMWMeWkwQ7
     * -PlXMJWymdhXVI3BOpNt7ZOB2vMFYSOOHNBJUunQoe1lmNxuHQdhxqoHahn3u1cLDXz
     * -xx-
     * JELduuMmaDWqnTFPodVPl45WBKHaQhlOiFWj3ZClUV2k5p2yBT8TmxekL8gWwgVbQk5yPnYOs
     * -PcMjzODc9MZX4yI10ZSCSDciwf-
     * rgkQLT7wW4uZCoqTZ7187sCodHd6nw3nghqbtqN05fQ3Yq7ykwaR8pdQBFb2L9l7DhLLuXIREDKIFUHBSUs8OnvXFMg
     */

    String signature = "dSRvtD-ExzGN-fRXd1wRZOPo1JFPuqgwvaIKp8jgcyMXJegy6IUjssfUfUcICN5yvh0ggOMWMeWkwQ7-PlXMJWymdhXVI3BOpNt7ZOB2vMFYSOOHNBJUunQoe1lmNxuHQdhxqoHahn3u1cLDXz-xx-JELduuMmaDWqnTFPodVPl45WBKHaQhlOiFWj3ZClUV2k5p2yBT8TmxekL8gWwgVbQk5yPnYOs-PcMjzODc9MZX4yI10ZSCSDciwf-rgkQLT7wW4uZCoqTZ7187sCodHd6nw3nghqbtqN05fQ3Yq7ykwaR8pdQBFb2L9l7DhLLuXIREDKIFUHBSUs8OnvXFMg";
    String expected = "eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiJ9.eyJleHAiOjEzMDA4MTkzODAsImlzcyI6ImpvZSIsImh0dHA6Ly9leGFtcGxlLmNvbS9pc19yb290Ijp0cnVlfQ"
            + "." + signature;

    signer.sign(jwt);

    String actual = jwt.toString();

    assertThat(signer.verify(actual), equalTo(true));
    assertThat(actual, equalTo(expected));
    assertThat(jwt.getSignature(), equalTo(signature));
}

From source file:mitm.common.security.crl.GenerateTestCRLs.java

private PrivateKey decodePrivateKey(String encoded) throws Exception {
    byte[] rawKey = Hex.decodeHex(encoded.toCharArray());

    KeySpec keySpec = new PKCS8EncodedKeySpec(rawKey);

    KeyFactory keyFactory = securityFactory.createKeyFactory("RSA");

    return keyFactory.generatePrivate(keySpec);
}

From source file:im.whistle.crypt.Crypt.java

/**
 * Encrypts a message./* w w w  . j av  a 2s.co  m*/
 * @param args Arguments: data, publicKey[, privateKey]
 * @param callback Callback
 */
public static void encrypt(JSONArray args, AsyncCallback<JSONArray> callback) {
    try {
        PRNGProvider.init(); // Ensure OpenSSL fix

        // Get the arguments
        String data = args.getString(0);
        String pub = args.getString(1);
        String priv = null;
        if (args.length() == 3) {
            priv = args.getString(2);
        }
        String sig = null;

        // Convert everything into byte arrays
        byte[] dataRaw = data.getBytes("utf-8");
        byte[] pubRaw = Base64.decode(stripKey(pub), Base64.DEFAULT);

        // Generate random AES key and IV
        byte[] aesKey = new byte[AES_BYTES];
        new SecureRandom().nextBytes(aesKey);
        byte[] aesIv = new byte[16]; // Block size
        new SecureRandom().nextBytes(aesIv);
        Cipher c = Cipher.getInstance("AES/CBC/PKCS7Padding", "BC");
        c.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(aesKey, "AES"), new IvParameterSpec(aesIv));

        // Encrypt data with AES
        byte[] encData = c.doFinal(dataRaw);

        // Encrypt aes data with RSA
        X509EncodedKeySpec publicKeySpec = new X509EncodedKeySpec(pubRaw);
        KeyFactory kf = KeyFactory.getInstance("RSA", "BC");
        c = Cipher.getInstance("RSA/None/OAEPWithSHA-1AndMGF1Padding", "BC");
        c.init(Cipher.ENCRYPT_MODE, kf.generatePublic(publicKeySpec));
        c.update(aesKey);
        c.update(aesIv);
        byte[] encKey = c.doFinal();

        // Concatenate and transform
        byte[] encRaw = new byte[encKey.length + encData.length];
        System.arraycopy(encKey, 0, encRaw, 0, encKey.length);
        System.arraycopy(encData, 0, encRaw, encKey.length, encData.length);
        encKey = null;
        encData = null;
        String enc = new String(Base64.encode(encRaw /* needed for sign */, Base64.NO_WRAP), "utf-8");

        // Sign
        if (priv != null) {
            // Fail on error (no try-catch)
            byte[] privRaw = Base64.decode(stripKey(priv), Base64.DEFAULT);
            PKCS8EncodedKeySpec privateKeySpec = new PKCS8EncodedKeySpec(privRaw);
            Signature s = Signature.getInstance("SHA1withRSA", "BC");
            s.initSign(kf.generatePrivate(privateKeySpec));
            s.update(encRaw);
            sig = new String(Base64.encode(s.sign(), Base64.NO_WRAP), "utf-8");
        }

        JSONArray res = new JSONArray();
        res.put(enc);
        res.put(sig);
        callback.success(res);
    } catch (Exception ex) {
        Log.w("whistle", "Encrypt error: " + ex.getMessage(), ex);
        callback.error(ex);
    }
}

From source file:com.ibm.dbwkl.helper.CryptionModule.java

/**
 * @return PrivateKey Instance//w  ww . j a v a2 s .  co  m
 * @throws IOException
 * @throws NoSuchAlgorithmException
 * @throws InvalidKeySpecException
 */
private RSAPrivateKey getPrivateKey() throws IOException, NoSuchAlgorithmException, InvalidKeySpecException {
    byte[] privateKeyBytes = null;
    RSAPrivateKey privateKey = null;

    privateKeyBytes = getPrivateKeyBytes();
    KeyFactory keyFactory = KeyFactory.getInstance("RSA");
    KeySpec keySpec = new PKCS8EncodedKeySpec(privateKeyBytes);
    privateKey = (RSAPrivateKey) keyFactory.generatePrivate(keySpec);

    return privateKey;
}

From source file:ie.peternagy.jcrypto.algo.EllipticCurveWrapper.java

/**
 * Try load the keys from disk/*from   w  w w  . j  a v  a2 s.com*/
 */
public void tryLoadKeys() {
    try {
        byte[] publicBytes = Hex
                .decodeHex(new String(FileAccessUtil.readFromDisk(getKeyFilePath(false))).toCharArray());
        byte[] privateBytes = Hex
                .decodeHex(new String(FileAccessUtil.readFromDisk(getKeyFilePath(true))).toCharArray());
        KeyFactory fact = KeyFactory.getInstance("ECDSA", "BC");
        publicKey = fact.generatePublic(new X509EncodedKeySpec(publicBytes));
        privateKey = fact.generatePrivate(new PKCS8EncodedKeySpec(privateBytes));
    } catch (NoSuchAlgorithmException | NoSuchProviderException | InvalidKeySpecException
            | DecoderException ex) {
        Logger.getLogger(EllipticCurveWrapper.class.getName()).log(Level.SEVERE, null, ex);
    }
}

From source file:org.commonjava.maven.galley.transport.htcli.internal.SSLUtils.java

public static KeyStore readKeyAndCert(final String pemContent, final String keyPass)
        throws CertificateException, IOException, KeyStoreException, NoSuchAlgorithmException,
        InvalidKeySpecException {
    final KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
    ks.load(null);//from  www.j ava  2s .c o  m

    final CertificateFactory certFactory = CertificateFactory.getInstance("X.509");
    final KeyFactory keyFactory = KeyFactory.getInstance("RSA");

    final List<String> lines = readLines(pemContent);

    String currentHeader = null;
    final StringBuilder current = new StringBuilder();
    final Map<String, String> entries = new LinkedHashMap<String, String>();
    for (final String line : lines) {
        if (line == null) {
            continue;
        }

        if (line.startsWith("-----BEGIN")) {
            currentHeader = line.trim();
            current.setLength(0);
        } else if (line.startsWith("-----END")) {
            entries.put(currentHeader, current.toString());
        } else {
            current.append(line.trim());
        }
    }

    final List<Certificate> certs = new ArrayList<Certificate>();
    for (int pass = 0; pass < 2; pass++) {
        for (final Map.Entry<String, String> entry : entries.entrySet()) {
            final String header = entry.getKey();
            final byte[] data = decodeBase64(entry.getValue());

            if (pass > 0 && header.contains("BEGIN PRIVATE KEY")) {
                final KeySpec spec = new PKCS8EncodedKeySpec(data);
                final PrivateKey key = keyFactory.generatePrivate(spec);
                ks.setKeyEntry("key", key, keyPass.toCharArray(), certs.toArray(new Certificate[] {}));
            } else if (pass < 1 && header.contains("BEGIN CERTIFICATE")) {
                final Certificate c = certFactory.generateCertificate(new ByteArrayInputStream(data));

                ks.setCertificateEntry("certificate", c);
                certs.add(c);
            }
        }
    }

    return ks;
}