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

Example 46 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 47 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 48 with KeyAgreement

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

the class ECDHKeyAgreementTest method testGenerateSecret_withoutBuffer.

void testGenerateSecret_withoutBuffer(Provider provider) throws Exception {
    KeyAgreement keyAgreement = getKeyAgreement(provider);
    keyAgreement.init(KAT_PRIVATE_KEY2);
    keyAgreement.doPhase(KAT_PUBLIC_KEY1, true);
    byte[] secret = keyAgreement.generateSecret();
    assertTrue(Arrays.equals(KAT_SECRET, secret));
}

Example 49 with KeyAgreement

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

the class ECDHKeyAgreementTest method testGenerateSecret_withNullOutputBuffer.

void testGenerateSecret_withNullOutputBuffer(Provider provider) throws Exception {
    KeyAgreement keyAgreement = getKeyAgreement(provider);
    keyAgreement.init(KAT_PRIVATE_KEY1);
    keyAgreement.doPhase(KAT_PUBLIC_KEY2, true);
    try {
        keyAgreement.generateSecret(null, 0);
        fail();
    } catch (NullPointerException expected) {
    }
}

Example 50 with KeyAgreement

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

the class ECDHKeyAgreementTest method testDoPhase_withPhaseWhichIsNotLast.

void testDoPhase_withPhaseWhichIsNotLast(Provider provider) throws Exception {
    KeyAgreement keyAgreement = getKeyAgreement(provider);
    keyAgreement.init(KAT_PRIVATE_KEY1);
    try {
        keyAgreement.doPhase(KAT_PUBLIC_KEY2, false);
        fail();
    } catch (IllegalStateException expected) {
    }
}