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

Example 51 with RSAPublicKeySpec

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

the class SignatureTest method testSign_SHA1withRSA_Key_Success.

public void testSign_SHA1withRSA_Key_Success() 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("SHA1withRSA");
    sig.initSign(privKey);
    sig.update(Vector1Data);
    byte[] signature = sig.sign();
    assertNotNull("Signature must not be null", signature);
    assertTrue("Signature should match expected", Arrays.equals(signature, SHA1withRSA_Vector1Signature));
    RSAPublicKeySpec pubKeySpec = new RSAPublicKeySpec(RSA_2048_modulus, RSA_2048_publicExponent);
    PublicKey pubKey = kf.generatePublic(pubKeySpec);
    sig.initVerify(pubKey);
    sig.update(Vector1Data);
    assertTrue("Signature must verify correctly", sig.verify(signature));
}

Example 52 with RSAPublicKeySpec

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

the class SignatureTest method testVerify_SHA512withRSA_Key_Success.

public void testVerify_SHA512withRSA_Key_Success() throws Exception {
    KeyFactory kf = KeyFactory.getInstance("RSA");
    RSAPublicKeySpec keySpec = new RSAPublicKeySpec(RSA_2048_modulus, RSA_2048_publicExponent);
    PublicKey pubKey = kf.generatePublic(keySpec);
    Signature sig = Signature.getInstance("SHA512withRSA");
    sig.initVerify(pubKey);
    sig.update(Vector2Data);
    assertTrue("Signature must match expected signature", sig.verify(SHA512withRSA_Vector2Signature));
}

Example 53 with RSAPublicKeySpec

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

the class SignatureTest method testSign_SHA512withRSA_Key_Success.

public void testSign_SHA512withRSA_Key_Success() 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("SHA512withRSA");
    sig.initSign(privKey);
    sig.update(Vector2Data);
    byte[] signature = sig.sign();
    assertNotNull("Signature must not be null", signature);
    assertTrue("Signature should match expected", Arrays.equals(signature, SHA512withRSA_Vector2Signature));
    RSAPublicKeySpec pubKeySpec = new RSAPublicKeySpec(RSA_2048_modulus, RSA_2048_publicExponent);
    PublicKey pubKey = kf.generatePublic(pubKeySpec);
    sig.initVerify(pubKey);
    sig.update(Vector2Data);
    assertTrue("Signature must verify correctly", sig.verify(signature));
}

Example 54 with RSAPublicKeySpec

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

the class SignatureTest method testVerify_NONEwithRSA_Key_DataTooLarge_SingleByte_Failure.

public void testVerify_NONEwithRSA_Key_DataTooLarge_SingleByte_Failure() throws Exception {
    KeyFactory kf = KeyFactory.getInstance("RSA");
    RSAPublicKeySpec pubKeySpec = new RSAPublicKeySpec(RSA_2048_modulus, RSA_2048_publicExponent);
    PublicKey pubKey = kf.generatePublic(pubKeySpec);
    Signature sig = Signature.getInstance("NONEwithRSA");
    sig.initVerify(pubKey);
    // This should make it twice as big as it should be.
    final int tooBig = RSA_2048_modulus.bitLength() * 2;
    for (int i = 0; i < tooBig; i++) {
        sig.update((byte) Vector1Data[i % Vector1Data.length]);
    }
    assertFalse("Should not verify when signature is too large", sig.verify(NONEwithRSA_Vector1Signature));
}

Example 55 with RSAPublicKeySpec

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

the class CipherTest method testRSA_ECB_NoPadding_Public_OnlyDoFinalWithOffset_Success.

private void testRSA_ECB_NoPadding_Public_OnlyDoFinalWithOffset_Success(String provider) throws Exception {
    KeyFactory kf = KeyFactory.getInstance("RSA");
    RSAPublicKeySpec keySpec = new RSAPublicKeySpec(RSA_2048_modulus, RSA_2048_publicExponent);
    final PublicKey pubKey = kf.generatePublic(keySpec);
    Cipher c = Cipher.getInstance("RSA/ECB/NoPadding", provider);
    /*
         * You're actually encrypting with public 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, pubKey);
    byte[] encrypted = new byte[RSA_2048_Vector1.length];
    final int encryptLen = c.doFinal(RSA_Vector1_Encrypt_Private, 0, RSA_Vector1_Encrypt_Private.length, encrypted, 0);
    assertEquals("Encrypted size should match expected", RSA_2048_Vector1.length, encryptLen);
    assertEncryptedEqualsNoPadding(provider, Cipher.ENCRYPT_MODE, RSA_2048_Vector1, encrypted);
    c.init(Cipher.DECRYPT_MODE, pubKey);
    int decryptLen = c.doFinal(RSA_Vector1_Encrypt_Private, 0, RSA_Vector1_Encrypt_Private.length, encrypted, 0);
    if (provider.equals("BC")) {
        // BC strips the leading 0 for us on decrypt even when NoPadding is specified...
        decryptLen++;
        encrypted = Arrays.copyOf(encrypted, encrypted.length - 1);
    }
    assertEquals("Encrypted size should match expected", RSA_2048_Vector1.length, decryptLen);
    assertEncryptedEqualsNoPadding(provider, Cipher.DECRYPT_MODE, RSA_2048_Vector1, encrypted);
}