Examples with AbstractPrivateKey com.icodici.crypto.AbstractPrivateKey used on opensource projects

Example 6 with AbstractPrivateKey

use of com.icodici.crypto.AbstractPrivateKey in project universa by UniversaBlockchain.

the class RSAOAEPPrivateKeyTest method decrypt.

/**
 * Test {@link RSAOAEPPrivateKey#decrypt}.
 */
@Test
public void decrypt() throws Exception {
    // Test on RSA vectors.
    AbstractPrivateKey rsaPrivateKey = oaepSpec.getPrivateKey();
    AbstractPublicKey rsaPublicKey = rsaPrivateKey.getPublicKey();
    ((RSAOAEPPrivateKey) rsaPrivateKey).resetDecryptor();
    assertArrayEquals(rsaPrivateKey.decrypt(oaepSpec.C), oaepSpec.M);
    ((RSAOAEPPublicKey) rsaPublicKey).resetEncryptor();
    assertArrayEquals(rsaPublicKey.encrypt(oaepSpec.M), oaepSpec.C);
    // Test on some random data.
    AbstractPrivateKey randomPrivateKey = randomPrivateKey4096;
    AbstractPublicKey randomPublicKey = randomPrivateKey.getPublicKey();
    SecureRandom rng = new SecureRandom();
    int maxMessageSize = ((RSAOAEPPrivateKey) randomPrivateKey).getMaxBlockSize(), minMessageSize = maxMessageSize, messageSize = (maxMessageSize >= minMessageSize) ? rng.nextInt(maxMessageSize - minMessageSize + 1) + minMessageSize : 0;
    // For our key pair we do multiple encryption-decryption cycles on different data.
    for (int i = 0; i < NUMBER_OF_RANDOM_ENCRYPTION_DECRYPTION_CYCLES; i++) {
        ((RSAOAEPPrivateKey) randomPrivateKey).resetDecryptor();
        ((RSAOAEPPublicKey) randomPublicKey).resetEncryptor();
        // Create random message
        byte[] message = new byte[messageSize];
        rng.nextBytes(message);
        byte[] encrypted = randomPublicKey.encrypt(message), decrypted = randomPrivateKey.decrypt(encrypted);
        assertArrayEquals(decrypted, message);
    }
}

Example 7 with AbstractPrivateKey

use of com.icodici.crypto.AbstractPrivateKey in project universa by UniversaBlockchain.

the class RSAOAEPPrivateKeyTest method toHash.

/**
 * Test {@link RSAOAEPPrivateKey#toHash}.
 */
@Test
public void toHash() throws Exception {
    // Test sample RSA vectors.
    AbstractPrivateKey rsaPrivateKey = oaepSpec.getPrivateKey();
    Map mapRSA = rsaPrivateKey.toHash();
    assertArrayEquals((byte[]) mapRSA.get("e"), oaepSpec.e);
    assertArrayEquals((byte[]) mapRSA.get("p"), oaepSpec.p);
    assertArrayEquals((byte[]) mapRSA.get("q"), oaepSpec.q);
    // SHA-1 is the default value
    assertFalse(mapRSA.containsKey("mgf1Hash"));
    // Test random key pair (4096 bit, SHA-512).
    AbstractPublicKey randomPublicKey4096 = randomPrivateKey4096.getPublicKey();
    Map mapPrivate4096 = randomPrivateKey4096.toHash(), mapPublic4096 = randomPublicKey4096.toHash();
    RSAPrivateCrtKeyParameters privateKeyParameters4096 = ((RSAOAEPPrivateKey) randomPrivateKey4096).state.keyParameters;
    RSAKeyParameters publicKeyParameters4096 = ((RSAOAEPPublicKey) (randomPrivateKey4096.getPublicKey())).state.keyParameters;
    // Check private key serialization.
    assertArrayEquals((byte[]) mapPrivate4096.get("e"), BigIntegers.asUnsignedByteArray(privateKeyParameters4096.getPublicExponent()));
    assertArrayEquals((byte[]) mapPrivate4096.get("p"), BigIntegers.asUnsignedByteArray(privateKeyParameters4096.getP()));
    assertArrayEquals((byte[]) mapPrivate4096.get("q"), BigIntegers.asUnsignedByteArray(privateKeyParameters4096.getQ()));
    assertEquals(mapPrivate4096.get("mgf1Hash"), "SHA-512");
    // Check public key serialization.
    assertArrayEquals((byte[]) mapPublic4096.get("n"), BigIntegers.asUnsignedByteArray(publicKeyParameters4096.getModulus()));
    assertArrayEquals((byte[]) mapPublic4096.get("e"), BigIntegers.asUnsignedByteArray(publicKeyParameters4096.getExponent()));
    assertEquals(mapPublic4096.get("mgf1Hash"), "SHA-512");
}

Example 8 with AbstractPrivateKey

use of com.icodici.crypto.AbstractPrivateKey in project universa by UniversaBlockchain.

the class RSAOAEPPublicKeyTest method checkSignature.

/**
 * Test {@link RSAOAEPPublicKey#checkSignature}.
 */
@Test
public void checkSignature() throws Exception {
    // Test sample RSA vectors.
    AbstractPublicKey rsaPublicKey = pssSpec.getPublicKey();
    AbstractPrivateKey rsaPrivateKey = pssSpec.getPrivateKey();
    assertArrayEquals(rsaPrivateKey.sign(pssSpec.M, HashType.SHA1, RSASSAPSSTestVectors.salt), pssSpec.S);
    assertTrue(rsaPublicKey.checkSignature(pssSpec.M, rsaPrivateKey.sign(pssSpec.M, HashType.SHA1, RSASSAPSSTestVectors.salt), HashType.SHA1, RSASSAPSSTestVectors.salt.length));
}