@Test
public void testComputePrf_rfc589vector5() throws Exception {

  HashType hash = HashType.SHA1;
  byte[] ikm =
      Hex.decode(
          "000102030405060708090a0b0c0d0e0f"
              + "101112131415161718191a1b1c1d1e1f"
              + "202122232425262728292a2b2c2d2e2f"
              + "303132333435363738393a3b3c3d3e3f"
              + "404142434445464748494a4b4c4d4e4f");
  byte[] salt =
      Hex.decode(
          "606162636465666768696a6b6c6d6e6f"
              + "707172737475767778797a7b7c7d7e7f"
              + "808182838485868788898a8b8c8d8e8f"
              + "909192939495969798999a9b9c9d9e9f"
              + "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf");
  byte[] info =
      Hex.decode(
          "b0b1b2b3b4b5b6b7b8b9babbbcbdbebf"
              + "c0c1c2c3c4c5c6c7c8c9cacbcccdcecf"
              + "d0d1d2d3d4d5d6d7d8d9dadbdcdddedf"
              + "e0e1e2e3e4e5e6e7e8e9eaebecedeeef"
              + "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff");
  byte[] expectedResult =
      Hex.decode(
          "0bd770a74d1160f7c9f12cd5912a06eb"
              + "ff6adcae899d92191fe4305673ba2ffe"
              + "8fa3f1a4e5ad79f3f334b3b202b2173c"
              + "486ea37ce3d397ed034c7f9dfeb15c5e"
              + "927336d0441f4c4300e2cff0d0900b52"
              + "d3b4");
  HkdfStreamingPrf prf = new HkdfStreamingPrf(hash, ikm, salt);
  InputStream input = prf.computePrf(info);
  byte[] output = new byte[expectedResult.length];
  assertThat(input.read(output)).isEqualTo(expectedResult.length);
  assertThat(output).isEqualTo(expectedResult);
}