Examples with KeyAgreement javax.crypto.KeyAgreement used on opensource projects

Example 51 with KeyAgreement

use of javax.crypto.KeyAgreement in project robovm by robovm.

the class KeyAgreementTest method test_getAlgorithm.

public void test_getAlgorithm() throws NoSuchAlgorithmException {
    Mock_KeyAgreement mka = new Mock_KeyAgreement(null, null, null);
    assertNull(mka.getAlgorithm());
    KeyAgreement keyA;
    for (int i = 0; i < validValues.length; i++) {
        keyA = KeyAgreement.getInstance(validValues[i]);
        assertEquals("Incorrect algorithm", keyA.getAlgorithm(), validValues[i]);
    }
}

Example 52 with KeyAgreement

use of javax.crypto.KeyAgreement in project robovm by robovm.

the class KeyAgreementTest method testInit01.

/**
     * Test for the methods <code>init(Key key)</code>
     * <code>init(Key key, SecureRandom random)</code>
     * <code>init(Key key, AlgorithmParameterSpec params)</code>
     * <code>init(Key key, AlgorithmParameterSpec params, SecureRandom random)</code>
     * Assertion: throws InvalidKeyException when key is inappropriate
     */
public void testInit01() throws Exception {
    if (!DEFSupported) {
        fail(NotSupportMsg);
        return;
    }
    createKeys();
    KeyAgreement[] kAgs = createKAs();
    SecureRandom random = null;
    AlgorithmParameterSpec aps = null;
    DHParameterSpec dhPs = new DHParameterSpec(new BigInteger("56"), new BigInteger("56"));
    for (int i = 0; i < kAgs.length; i++) {
        try {
            kAgs[i].init(publKey);
            fail("InvalidKeyException must be throw");
        } catch (InvalidKeyException e) {
        }
        try {
            kAgs[i].init(publKey, new SecureRandom());
            fail("InvalidKeyException must be throw");
        } catch (InvalidKeyException e) {
        }
        try {
            kAgs[i].init(publKey, random);
            fail("InvalidKeyException must be throw");
        } catch (InvalidKeyException e) {
        }
        try {
            kAgs[i].init(publKey, dhPs);
            fail("InvalidKeyException must be throw");
        } catch (InvalidKeyException e) {
        }
        try {
            kAgs[i].init(publKey, aps);
            fail("InvalidKeyException must be throw");
        } catch (InvalidKeyException e) {
        }
        try {
            kAgs[i].init(publKey, dhPs, new SecureRandom());
            fail("InvalidKeyException must be throw");
        } catch (InvalidKeyException e) {
        }
    }
}

Example 53 with KeyAgreement

use of javax.crypto.KeyAgreement in project robovm by robovm.

the class KeyAgreementTest method testDoPhase.

/**
     * Test for <code>doPhase(Key key, boolean lastPhase)</code> method
     * Assertion: throws InvalidKeyException if key is not appropriate
     */
public void testDoPhase() throws Exception {
    if (!DEFSupported) {
        fail(NotSupportMsg);
        return;
    }
    createKeys();
    KeyAgreement[] kAgs = createKAs();
    DHParameterSpec dhPs = ((DHPrivateKey) privKey).getParams();
    SecureRandom randomNull = null;
    SecureRandom random = new SecureRandom();
    for (int i = 0; i < kAgs.length; i++) {
        try {
            kAgs[i].doPhase(publKey, true);
            fail("IllegalStateException expected");
        } catch (IllegalStateException e) {
        //expected
        }
        kAgs[i].init(privKey);
        try {
            kAgs[i].doPhase(privKey, false);
            fail("InvalidKeyException must be throw");
        } catch (InvalidKeyException e) {
        }
        try {
            kAgs[i].doPhase(privKey, true);
            fail("InvalidKeyException must be throw");
        } catch (InvalidKeyException e) {
        }
        kAgs[i].init(privKey, dhPs);
        kAgs[i].doPhase(publKey, true);
        kAgs[i].init(privKey, dhPs, random);
        kAgs[i].doPhase(publKey, true);
    }
}

Example 54 with KeyAgreement

use of javax.crypto.KeyAgreement in project Gradle-demo by Arisono.

the class DHUtil method getSecretKey.

/**
	 * 根据对方的公钥和自己的私钥生成本地密钥
	 */
public static byte[] getSecretKey(byte[] publicKey, byte[] privateKey) throws Exception {
    //实例化密钥工厂
    KeyFactory keyFactory = KeyFactory.getInstance("DH");
    //将公钥从字节数组转换为publicKey
    X509EncodedKeySpec pubKeySpec = new X509EncodedKeySpec(publicKey);
    PublicKey pubKey = keyFactory.generatePublic(pubKeySpec);
    //将私钥从字节数组转换为privateKey
    PKCS8EncodedKeySpec priKeySpec = new PKCS8EncodedKeySpec(privateKey);
    PrivateKey priKey = keyFactory.generatePrivate(priKeySpec);
    //准备根据以上公钥和私钥生成本地密钥SecretKey
    //先实例化KeyAgreement
    KeyAgreement keyAgreement = KeyAgreement.getInstance("DH");
    //用自己的私钥初始化keyAgreement
    keyAgreement.init(priKey);
    //结合对方的公钥进行运算
    keyAgreement.doPhase(pubKey, true);
    //开始生成本地密钥secretKey   密钥算法为对称密码算法
    //DES、3DES、AES
    SecretKey secretKey = keyAgreement.generateSecret("DES");
    return secretKey.getEncoded();
}

Example 55 with KeyAgreement

use of javax.crypto.KeyAgreement in project jdk8u_jdk by JetBrains.

the class ECDHCrypt method getAgreedSecret.

// called by ClientHandshaker with either the server's static or
// ephemeral public key
SecretKey getAgreedSecret(PublicKey peerPublicKey) throws SSLHandshakeException {
    try {
        KeyAgreement ka = JsseJce.getKeyAgreement("ECDH");
        ka.init(privateKey);
        ka.doPhase(peerPublicKey, true);
        return ka.generateSecret("TlsPremasterSecret");
    } catch (GeneralSecurityException e) {
        throw (SSLHandshakeException) new SSLHandshakeException("Could not generate secret").initCause(e);
    }
}