public void GetChainHeadTest()
{
var val = Strings.DecodeHexIntoBytes("475fbcef5e3a4e1621ed9a6fda5840c1d654715e55a8f5e514af0fb879ce0aec");
var chainHead = Chain.GetChainHead(val);
Assert.IsFalse(Bytes.Equality(chainHead.ChainHead, Encoding.UTF8.GetBytes("4c195ddcba466d2e15ce29d150c985bd7aaadaf881fa9a0abca0ee6ab07159f7")));
}
public void TestSegmentize()
{
var data = new byte[70000];
var r = new Random();
r.NextBytes(data);
var s = DataSegment.Segmentize(data, firstSegmentLength: DataSegment.DefaultMaxSegmentLength - 512);
var outData = DataSegment.Desegmentize(s);
Assert.IsTrue(Bytes.Equality(data, outData), "Pre and post segmentation data does not match");
}
/// <summary>
/// Unpack storable data to a CandidateOldVersionRecord
/// </summary>
/// <param name="packed">The packed OldVersionRecord data</param>
/// <param name="pubKey">The public key to verify with</param>
/// <returns>The record object</returns>
public static CandidateOldVersionRecord Unpack(byte[] packed, RSAParameters pubKey)
{
var sig = Arrays.CopyOfRange(packed, packed.Length - 512, packed.Length);
var data = Arrays.CopyOfRange(packed, 0, packed.Length - 512);
var prefix = Arrays.CopyOfRange(packed, 0, CandidateOldVersionPrefix.Length);
if (!Crypto.RSA_Verify(data, sig, pubKey))
{
throw new DataVerifyException("Could not cryptographically verify candidate update record");
}
data = Arrays.CopyOfRange(data, CandidateOldVersionPrefix.Length, data.Length);
if (!Bytes.Equality(CandidateOldVersionPrefix, prefix) ||
packed.Length != ChainIdLength * 2 + 512 + CandidateOldVersionPrefix.Length)
{
throw new RecordDataInvalidException("Invalid data provided for packed candidate update record");
}
return(new CandidateOldVersionRecord(Arrays.CopyOfRange(data, 0, ChainIdLength),
Arrays.CopyOfRange(data, ChainIdLength, ChainIdLength * 2)));
}