PrivateKeyEd25519 extends PrivateKey { public static PrivateKey fromBytes(byte[] bytes) { return new PrivateKeyEd25519(bytes); } private  PrivateKeyEd25519(byte[] value); static PrivateKey fromHexString(String hexString); static PrivateKey fromBytes(byte[] bytes); static PrivateKey random(); @Override BigInteger getScalarSeed(HashDelegate hashDelegate);  }
@Test(expected = IllegalArgumentException.class) public void failure_GeneratePrivateKey_wrong_byte_length_2() { PrivateKeyEd25519.fromBytes(new byte[31]); }
@Test public void success_GeneratePrivateKey_from_all_zero_byte_array() { PrivateKey privateKey = PrivateKeyEd25519.fromBytes(new byte[32]); assertThat(privateKey.getInteger(), is(new BigInteger(1, new byte[32]))); assertThat(privateKey.getInteger(), is(new BigInteger("00"))); assertThat(privateKey.getRaw(), is(ByteUtils.paddingZeroOnHead(new BigInteger("00").toByteArray(), 32))); }
@Test public void success_GeneratePrivateKey_from_bytes() { byte[] seed = new byte[]{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}; PrivateKey privateKey1 = PrivateKeyEd25519.fromBytes(seed); assertThat(privateKey1.getRaw(), is(seed)); }
@Test public void success_SameByteArray_1() { byte[] seed = new byte[]{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31}; PrivateKey privateKey1 = PrivateKeyEd25519.fromBytes(seed); assertThat(privateKey1.getRaw(), is(seed)); }