Examples with RSAPrivateKeySpec java.security.spec.RSAPrivateKeySpec used on opensource projects

Example 41 with RSAPrivateKeySpec

use of java.security.spec.RSAPrivateKeySpec in project robovm by robovm.

the class RSAPrivateKeySpecTest method testGetPrivateExponent.

/**
     * Test for <code>getPrivateExponent()</code> method<br>
     * Assertion: returns private exponent
     */
public final void testGetPrivateExponent() {
    RSAPrivateKeySpec rpks = new RSAPrivateKeySpec(BigInteger.valueOf(1234567890L), BigInteger.valueOf(3L));
    assertEquals(3L, rpks.getPrivateExponent().longValue());
}

Example 42 with RSAPrivateKeySpec

use of java.security.spec.RSAPrivateKeySpec in project robovm by robovm.

the class SignatureTest method testSign_NONEwithRSA_Key_DataTooLarge_SingleByte_Failure.

public void testSign_NONEwithRSA_Key_DataTooLarge_SingleByte_Failure() throws Exception {
    KeyFactory kf = KeyFactory.getInstance("RSA");
    RSAPrivateKeySpec keySpec = new RSAPrivateKeySpec(RSA_2048_modulus, RSA_2048_privateExponent);
    PrivateKey privKey = kf.generatePrivate(keySpec);
    Signature sig = Signature.getInstance("NONEwithRSA");
    sig.initSign(privKey);
    // This should make it two bytes too big.
    final int oneTooBig = RSA_2048_modulus.bitLength() - 10;
    for (int i = 0; i < oneTooBig; i++) {
        sig.update((byte) i);
    }
    try {
        sig.sign();
        fail("Should throw exception when data is too large");
    } catch (SignatureException expected) {
    }
}

Example 43 with RSAPrivateKeySpec

use of java.security.spec.RSAPrivateKeySpec in project robovm by robovm.

the class CipherTest method testRSA_ECB_NoPadding_Private_OnlyDoFinal_Success.

private void testRSA_ECB_NoPadding_Private_OnlyDoFinal_Success(String provider) throws Exception {
    KeyFactory kf = KeyFactory.getInstance("RSA");
    RSAPrivateKeySpec keySpec = new RSAPrivateKeySpec(RSA_2048_modulus, RSA_2048_privateExponent);
    final PrivateKey privKey = kf.generatePrivate(keySpec);
    Cipher c = Cipher.getInstance("RSA/ECB/NoPadding", provider);
    /*
         * You're actually decrypting with private keys, but there is no
         * distinction made here. It's all keyed off of what kind of key you're
         * using. ENCRYPT_MODE and DECRYPT_MODE are the same.
         */
    c.init(Cipher.ENCRYPT_MODE, privKey);
    byte[] encrypted = c.doFinal(RSA_2048_Vector1);
    assertTrue("Encrypted should match expected", Arrays.equals(RSA_Vector1_Encrypt_Private, encrypted));
    c.init(Cipher.DECRYPT_MODE, privKey);
    encrypted = c.doFinal(RSA_2048_Vector1);
    assertTrue("Encrypted should match expected", Arrays.equals(RSA_Vector1_Encrypt_Private, encrypted));
}

Example 44 with RSAPrivateKeySpec

use of java.security.spec.RSAPrivateKeySpec in project robovm by robovm.

the class CipherTest method testRSA_ECB_NoPadding_Private_SingleByteUpdateThenEmptyDoFinal_Success.

private void testRSA_ECB_NoPadding_Private_SingleByteUpdateThenEmptyDoFinal_Success(String provider) throws Exception {
    KeyFactory kf = KeyFactory.getInstance("RSA");
    RSAPrivateKeySpec keySpec = new RSAPrivateKeySpec(RSA_2048_modulus, RSA_2048_privateExponent);
    final PrivateKey privKey = kf.generatePrivate(keySpec);
    Cipher c = Cipher.getInstance("RSA/ECB/NoPadding", provider);
    /*
         * You're actually decrypting with private keys, but there is no
         * distinction made here. It's all keyed off of what kind of key you're
         * using. ENCRYPT_MODE and DECRYPT_MODE are the same.
         */
    c.init(Cipher.ENCRYPT_MODE, privKey);
    int i;
    for (i = 0; i < RSA_2048_Vector1.length / 2; i++) {
        c.update(RSA_2048_Vector1, i, 1);
    }
    byte[] encrypted = c.doFinal(RSA_2048_Vector1, i, RSA_2048_Vector1.length - i);
    assertTrue("Encrypted should match expected", Arrays.equals(RSA_Vector1_Encrypt_Private, encrypted));
    c.init(Cipher.DECRYPT_MODE, privKey);
    for (i = 0; i < RSA_2048_Vector1.length / 2; i++) {
        c.update(RSA_2048_Vector1, i, 1);
    }
    encrypted = c.doFinal(RSA_2048_Vector1, i, RSA_2048_Vector1.length - i);
    assertTrue("Encrypted should match expected", Arrays.equals(RSA_Vector1_Encrypt_Private, encrypted));
}

Example 45 with RSAPrivateKeySpec

use of java.security.spec.RSAPrivateKeySpec in project robovm by robovm.

the class RSAKeyTest method test_getModulus.

/**
     * java.security.interfaces.RSAKey
     * #getModulus()
     * test covers following use cases
     *   Case 1: check private key
     *   Case 2: check public key
     */
public void test_getModulus() throws Exception {
    KeyFactory gen = KeyFactory.getInstance("RSA");
    final BigInteger n = BigInteger.valueOf(3233);
    final BigInteger d = BigInteger.valueOf(2753);
    final BigInteger e = BigInteger.valueOf(17);
    RSAKey key = null;
    // Case 1: check private key
    key = (RSAKey) gen.generatePrivate(new RSAPrivateKeySpec(n, d));
    assertEquals("invalid modulus", n, key.getModulus());
    // Case 2: check public key
    key = (RSAKey) gen.generatePublic(new RSAPublicKeySpec(n, e));
    assertEquals("invalid modulus", n, key.getModulus());
}