@Test
void createKeyPair_test_with_seed() {

    byte[] seed = new byte[]{0x01, 0x23, 0x45};
    KeyPair keyPairA = ECUtil.createKeyPair(seed);
    KeyPair keyPairB = ECUtil.createKeyPair(seed);
    assertThat(keyPairA.getPrivate().getEncoded()).isEqualTo(keyPairB.getPrivate().getEncoded());
}