Examples with ECPublicKey java.security.interfaces.ECPublicKey used on opensource projects

Example 16 with ECPublicKey

use of java.security.interfaces.ECPublicKey in project jdk8u_jdk by JetBrains.

the class ECDHCrypt method checkConstraints.

// Check constraints of the specified EC public key.
void checkConstraints(AlgorithmConstraints constraints, byte[] encodedPoint) throws SSLHandshakeException {
    try {
        ECParameterSpec params = publicKey.getParams();
        ECPoint point = JsseJce.decodePoint(encodedPoint, params.getCurve());
        ECPublicKeySpec spec = new ECPublicKeySpec(point, params);
        KeyFactory kf = JsseJce.getKeyFactory("EC");
        ECPublicKey publicKey = (ECPublicKey) kf.generatePublic(spec);
        // check constraints of ECPublicKey
        if (!constraints.permits(EnumSet.of(CryptoPrimitive.KEY_AGREEMENT), publicKey)) {
            throw new SSLHandshakeException("ECPublicKey does not comply to algorithm constraints");
        }
    } catch (GeneralSecurityException | java.io.IOException e) {
        throw (SSLHandshakeException) new SSLHandshakeException("Could not generate ECPublicKey").initCause(e);
    }
}

Example 17 with ECPublicKey

use of java.security.interfaces.ECPublicKey in project android_frameworks_base by crdroidandroid.

the class AndroidKeyStoreProvider method getAndroidKeyStorePublicKey.

@NonNull
public static AndroidKeyStorePublicKey getAndroidKeyStorePublicKey(@NonNull String alias, int uid, @NonNull @KeyProperties.KeyAlgorithmEnum String keyAlgorithm, @NonNull byte[] x509EncodedForm) {
    PublicKey publicKey;
    try {
        KeyFactory keyFactory = KeyFactory.getInstance(keyAlgorithm);
        publicKey = keyFactory.generatePublic(new X509EncodedKeySpec(x509EncodedForm));
    } catch (NoSuchAlgorithmException e) {
        throw new ProviderException("Failed to obtain " + keyAlgorithm + " KeyFactory", e);
    } catch (InvalidKeySpecException e) {
        throw new ProviderException("Invalid X.509 encoding of public key", e);
    }
    if (KeyProperties.KEY_ALGORITHM_EC.equalsIgnoreCase(keyAlgorithm)) {
        return new AndroidKeyStoreECPublicKey(alias, uid, (ECPublicKey) publicKey);
    } else if (KeyProperties.KEY_ALGORITHM_RSA.equalsIgnoreCase(keyAlgorithm)) {
        return new AndroidKeyStoreRSAPublicKey(alias, uid, (RSAPublicKey) publicKey);
    } else {
        throw new ProviderException("Unsupported Android Keystore public key algorithm: " + keyAlgorithm);
    }
}

Example 18 with ECPublicKey

use of java.security.interfaces.ECPublicKey in project android_frameworks_base by crdroidandroid.

the class AndroidKeyPairGeneratorTest method assertKeyPairCorrect.

private void assertKeyPairCorrect(KeyPair pair, String alias, String keyType, int keySize, AlgorithmParameterSpec spec, X500Principal dn, BigInteger serial, Date start, Date end) throws Exception {
    final PublicKey pubKey = pair.getPublic();
    assertNotNull("The PublicKey for the KeyPair should be not null", pubKey);
    assertEquals(keyType, pubKey.getAlgorithm());
    if ("EC".equalsIgnoreCase(keyType)) {
        assertEquals("Curve should be what was specified during initialization", keySize, ((ECPublicKey) pubKey).getParams().getCurve().getField().getFieldSize());
    } else if ("RSA".equalsIgnoreCase(keyType)) {
        RSAPublicKey rsaPubKey = (RSAPublicKey) pubKey;
        assertEquals("Modulus size should be what is specified during initialization", (keySize + 7) & ~7, (rsaPubKey.getModulus().bitLength() + 7) & ~7);
        if (spec != null) {
            RSAKeyGenParameterSpec params = (RSAKeyGenParameterSpec) spec;
            assertEquals((keySize + 7) & ~7, (params.getKeysize() + 7) & ~7);
            assertEquals(params.getPublicExponent(), rsaPubKey.getPublicExponent());
        }
    }
    final PrivateKey privKey = pair.getPrivate();
    assertNotNull("The PrivateKey for the KeyPair should be not null", privKey);
    assertEquals(keyType, privKey.getAlgorithm());
    if ("EC".equalsIgnoreCase(keyType)) {
        assertTrue("EC private key must be instanceof ECKey: " + privKey.getClass().getName(), privKey instanceof ECKey);
        assertEquals("Private and public key must have the same EC parameters", ((ECKey) pubKey).getParams(), ((ECKey) privKey).getParams());
    } else if ("RSA".equalsIgnoreCase(keyType)) {
        assertTrue("RSA private key must be instance of RSAKey: " + privKey.getClass().getName(), privKey instanceof RSAKey);
        assertEquals("Private and public key must have the same RSA modulus", ((RSAKey) pubKey).getModulus(), ((RSAKey) privKey).getModulus());
    }
    final byte[] userCertBytes = mAndroidKeyStore.get(Credentials.USER_CERTIFICATE + alias);
    assertNotNull("The user certificate should exist for the generated entry", userCertBytes);
    final CertificateFactory cf = CertificateFactory.getInstance("X.509");
    final Certificate userCert = cf.generateCertificate(new ByteArrayInputStream(userCertBytes));
    assertTrue("Certificate should be in X.509 format", userCert instanceof X509Certificate);
    final X509Certificate x509userCert = (X509Certificate) userCert;
    assertEquals("Public key used to sign certificate should have the same algorithm as in KeyPair", pubKey.getAlgorithm(), x509userCert.getPublicKey().getAlgorithm());
    assertEquals("PublicKey used to sign certificate should match one returned in KeyPair", pubKey, AndroidKeyStoreProvider.getAndroidKeyStorePublicKey(Credentials.USER_PRIVATE_KEY + alias, KeyStore.UID_SELF, x509userCert.getPublicKey().getAlgorithm(), x509userCert.getPublicKey().getEncoded()));
    assertEquals("The Subject DN should be the one passed into the params", dn, x509userCert.getSubjectDN());
    assertEquals("The Issuer DN should be the same as the Subject DN", dn, x509userCert.getIssuerDN());
    assertEquals("The Serial should be the one passed into the params", serial, x509userCert.getSerialNumber());
    assertDateEquals("The notBefore date should be the one passed into the params", start, x509userCert.getNotBefore());
    assertDateEquals("The notAfter date should be the one passed into the params", end, x509userCert.getNotAfter());
    // Assert that the cert's signature verifies using the public key from generated KeyPair
    x509userCert.verify(pubKey);
    // Assert that the cert's signature verifies using the public key from the cert itself.
    x509userCert.verify(x509userCert.getPublicKey());
    final byte[] caCerts = mAndroidKeyStore.get(Credentials.CA_CERTIFICATE + alias);
    assertNull("A list of CA certificates should not exist for the generated entry", caCerts);
    ExportResult exportResult = mAndroidKeyStore.exportKey(Credentials.USER_PRIVATE_KEY + alias, KeymasterDefs.KM_KEY_FORMAT_X509, null, null);
    assertEquals(KeyStore.NO_ERROR, exportResult.resultCode);
    final byte[] pubKeyBytes = exportResult.exportData;
    assertNotNull("The keystore should return the public key for the generated key", pubKeyBytes);
    assertTrue("Public key X.509 format should be as expected", Arrays.equals(pubKey.getEncoded(), pubKeyBytes));
}

Example 19 with ECPublicKey

use of java.security.interfaces.ECPublicKey in project wycheproof by google.

the class EcKeyTest method testEncodedPublicKey.

public void testEncodedPublicKey() throws Exception {
    KeyFactory kf = KeyFactory.getInstance("EC");
    for (String encodedHex : EC_INVALID_PUBLIC_KEYS) {
        byte[] encoded = TestUtil.hexToBytes(encodedHex);
        X509EncodedKeySpec x509keySpec = new X509EncodedKeySpec(encoded);
        try {
            ECPublicKey unused = (ECPublicKey) kf.generatePublic(x509keySpec);
            fail("Constructed invalid public key from:" + encodedHex);
        } catch (InvalidKeySpecException ex) {
            // OK, since the public keys have been modified.
            System.out.println(ex.toString());
        }
    }
}

Example 20 with ECPublicKey

use of java.security.interfaces.ECPublicKey in project wycheproof by google.

the class EcKeyTest method testKeyGeneration.

/**
   * Tests key generation for given parameters. The test can be skipped if the curve is not a
   * standard curve.
   */
void testKeyGeneration(ECParameterSpec ecParams, boolean isStandard) throws Exception {
    KeyPairGenerator keyGen = KeyPairGenerator.getInstance("EC");
    KeyPair keyPair;
    try {
        keyGen.initialize(ecParams);
        keyPair = keyGen.generateKeyPair();
    } catch (InvalidAlgorithmParameterException ex) {
        if (!isStandard) {
            return;
        }
        throw ex;
    }
    ECPublicKey pub = (ECPublicKey) keyPair.getPublic();
    ECPrivateKey priv = (ECPrivateKey) keyPair.getPrivate();
    EcUtil.checkPublicKey(pub);
    BigInteger s = priv.getS();
    // Check the length of s. Could fail with probability 2^{-32}.
    assertTrue(s.bitLength() >= EcUtil.fieldSizeInBits(ecParams.getCurve()) - 32);
// TODO(bleichen): correct curve?
// TODO(bleichen): use RandomUtil
}