Example usage for java.security KeyPairGenerator generateKeyPair

Introduction

In this page you can find the example usage for java.security KeyPairGenerator generateKeyPair.

Prototype

public KeyPair generateKeyPair()

Source Link

Document

Generates a key pair.

Usage

From source file:cherry.foundation.crypto.RSACryptoSupportTest.java

private RSACryptoSupport createCrypto() throws Exception {
    KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
    keygen.initialize(2048);//from w  ww.  ja v  a  2s  . c om
    KeyPair key = keygen.generateKeyPair();
    RSACryptoSupport crypto = new RSACryptoSupport();
    crypto.setAlgorithm("RSA/ECB/PKCS1Padding");
    crypto.setPublicKeyResource(new InMemoryResource(key.getPublic().getEncoded()));
    crypto.setPrivateKeyResource(new InMemoryResource(key.getPrivate().getEncoded()));
    crypto.afterPropertiesSet();
    return crypto;
}

From source file:info.fcrp.keepitsafe.bean.UserBeanTest.java

private String generatePublicKey() throws NoSuchAlgorithmException {
    KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
    kpg.initialize(1024, new SecureRandom());
    KeyPair kp = kpg.generateKeyPair();
    PublicKey pubKey = kp.getPublic();

    return Base64.encodeBase64String(pubKey.getEncoded());
}

From source file:MainClass.java

public KeyPair generateKeyPair(long seed) throws Exception {
    Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
    KeyPairGenerator keyGenerator = KeyPairGenerator.getInstance("DSA");
    SecureRandom rng = SecureRandom.getInstance("SHA1PRNG", "SUN");
    rng.setSeed(seed);/*w  ww.  jav a 2s  .  c  om*/
    keyGenerator.initialize(1024, rng);

    return (keyGenerator.generateKeyPair());
}

From source file:cherry.goods.crypto.RSASignatureTest.java

private RSASignature create1() throws Exception {
    KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
    keygen.initialize(2048);//from   w w  w  . j a v  a2 s.c o  m
    KeyPair key = keygen.generateKeyPair();
    RSASignature impl = new RSASignature();
    impl.setAlgorithm("SHA256withRSA");
    impl.setPublicKeyBytes(key.getPublic().getEncoded());
    impl.setPrivateKeyBytes(key.getPrivate().getEncoded());
    return impl;
}

From source file:cherry.goods.crypto.RSACryptoTest.java

private RSACrypto create1() throws Exception {
    KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
    keygen.initialize(2048);//from w ww. j  av a  2 s  .  c o m
    KeyPair key = keygen.generateKeyPair();
    RSACrypto impl = new RSACrypto();
    impl.setAlgorithm("RSA/ECB/PKCS1Padding");
    impl.setPublicKeyBytes(key.getPublic().getEncoded());
    impl.setPrivateKeyBytes(key.getPrivate().getEncoded());
    return impl;
}

From source file:unit.test.be.e_contract.mycarenet.ehealth.common.WSSecuritySOAPHandlerTest.java

@Test
public void testHandleMessage() throws Exception {
    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
    KeyPair keyPair = keyPairGenerator.generateKeyPair();
    PrivateKey privateKey = keyPair.getPrivate();

    String samlAssertion = "<Assertion xmlns=\"urn:oasis:names:tc:SAML:1.0:assertion\""
            + " AssertionID=\"_42e7a00652420d86ee884f295a3fbf02\">" + "</Assertion>";

    WSSecuritySOAPHandler testedInstance = new WSSecuritySOAPHandler();
    testedInstance.setPrivateKey(privateKey);
    testedInstance.setAssertion(samlAssertion);

    SOAPMessageContext mockSoapMessageContext = EasyMock.createMock(SOAPMessageContext.class);
    EasyMock.expect(mockSoapMessageContext.get(MessageContext.MESSAGE_OUTBOUND_PROPERTY)).andReturn(true);

    MessageFactory messageFactory = MessageFactory.newInstance();
    SOAPMessage soapMessage = messageFactory.createMessage();
    SOAPPart soapPart = soapMessage.getSOAPPart();
    SOAPEnvelope soapEnvelope = soapPart.getEnvelope();
    SOAPBody soapBody = soapEnvelope.getBody();
    soapBody.addBodyElement(new QName("http://www.example.com", "Test"));

    EasyMock.expect(mockSoapMessageContext.getMessage()).andReturn(soapMessage);

    // prepare/*  w  ww  .java  2 s.  c o m*/
    EasyMock.replay(mockSoapMessageContext);

    // operate
    testedInstance.handleMessage(mockSoapMessageContext);

    // verify
    EasyMock.verify(mockSoapMessageContext);
    LOG.debug(toString(soapPart));
}

From source file:cherry.goods.crypto.RSASignatureTest.java

private RSASignature create2(char[] password) throws Exception {

    KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
    keygen.initialize(2048);//from   ww  w.j a va 2 s  .com
    KeyPair key = keygen.generateKeyPair();

    String pbeAlgName = "PBEWithMD5AndDES";
    PBEKeySpec pbeKeySpec = new PBEKeySpec(password);
    PBEParameterSpec pbeParamSpec = new PBEParameterSpec(RandomUtils.nextBytes(8), 20);
    SecretKey pbeKey = SecretKeyFactory.getInstance(pbeAlgName).generateSecret(pbeKeySpec);
    AlgorithmParameters pbeParam = AlgorithmParameters.getInstance(pbeAlgName);
    pbeParam.init(pbeParamSpec);
    Cipher cipher = Cipher.getInstance(pbeAlgName);
    cipher.init(Cipher.ENCRYPT_MODE, pbeKey, pbeParam);
    EncryptedPrivateKeyInfo encryptedKeyInfo = new EncryptedPrivateKeyInfo(pbeParam,
            cipher.doFinal(key.getPrivate().getEncoded()));

    RSASignature impl = new RSASignature();
    impl.setAlgorithm("SHA256withRSA");
    impl.setPublicKeyBytes(key.getPublic().getEncoded());
    impl.setPrivateKeyBytes(encryptedKeyInfo.getEncoded(), password);
    return impl;
}

From source file:cherry.goods.crypto.RSACryptoTest.java

private RSACrypto create2(char[] password) throws Exception {

    KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
    keygen.initialize(2048);//from  w  w w  .j  av  a2s .  c  o  m
    KeyPair key = keygen.generateKeyPair();

    String pbeAlgName = "PBEWithMD5AndDES";
    PBEKeySpec pbeKeySpec = new PBEKeySpec(password);
    PBEParameterSpec pbeParamSpec = new PBEParameterSpec(RandomUtils.nextBytes(8), 20);
    SecretKey pbeKey = SecretKeyFactory.getInstance(pbeAlgName).generateSecret(pbeKeySpec);
    AlgorithmParameters pbeParam = AlgorithmParameters.getInstance(pbeAlgName);
    pbeParam.init(pbeParamSpec);
    Cipher cipher = Cipher.getInstance(pbeAlgName);
    cipher.init(Cipher.ENCRYPT_MODE, pbeKey, pbeParam);
    EncryptedPrivateKeyInfo encryptedKeyInfo = new EncryptedPrivateKeyInfo(pbeParam,
            cipher.doFinal(key.getPrivate().getEncoded()));

    RSACrypto impl = new RSACrypto();
    impl.setAlgorithm("RSA/ECB/PKCS1Padding");
    impl.setPublicKeyBytes(key.getPublic().getEncoded());
    impl.setPrivateKeyBytes(encryptedKeyInfo.getEncoded(), password);
    return impl;
}

From source file:com.microsoft.azure.management.TestContainerService.java

private String getSshKey() throws Exception {
    KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
    keyPairGenerator.initialize(2048);//from   w  w  w.  j a v  a 2  s . c om
    KeyPair keyPair = keyPairGenerator.generateKeyPair();
    RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
    ByteArrayOutputStream byteOs = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(byteOs);
    dos.writeInt("ssh-rsa".getBytes().length);
    dos.write("ssh-rsa".getBytes());
    dos.writeInt(publicKey.getPublicExponent().toByteArray().length);
    dos.write(publicKey.getPublicExponent().toByteArray());
    dos.writeInt(publicKey.getModulus().toByteArray().length);
    dos.write(publicKey.getModulus().toByteArray());
    String publicKeyEncoded = new String(Base64.encodeBase64(byteOs.toByteArray()));
    return "ssh-rsa " + publicKeyEncoded + " ";
}

From source file:org.springframework.security.oauth.common.signature.TestRSA_SHA1SignatureMethod.java

/**
 * tests signing and verifying./*from w ww  .j a v a2s.  co m*/
 */
public void testSignAndVerify() throws Exception {
    KeyPairGenerator generator = KeyPairGenerator.getInstance("RSA");
    generator.initialize(1024);
    KeyPair keyPair = generator.generateKeyPair();
    String baseString = "thisismysignaturebasestringthatshouldbemuchlongerthanthisbutitdoesnthavetobeandherearesomestrangecharacters!@#$%^&*)(*";

    byte[] signatureBytes;
    {
        Signature signer = Signature.getInstance("SHA1withRSA");
        signer.initSign(keyPair.getPrivate());
        signer.update(baseString.getBytes("UTF-8"));
        signatureBytes = signer.sign();
    }

    {
        Signature signer = Signature.getInstance("SHA1withRSA");
        signer.initVerify(keyPair.getPublic());
        signer.update(baseString.getBytes("UTF-8"));
        assertTrue(signer.verify(signatureBytes));
    }

    RSA_SHA1SignatureMethod signatureMethod = new RSA_SHA1SignatureMethod(keyPair.getPrivate(),
            keyPair.getPublic());
    String signature = signatureMethod.sign(baseString);
    signatureMethod.verify(baseString, signature);
}