/// <summary>
/// Create uni-signatures based on the root signature.
/// </summary>
/// <returns></returns>
private IEnumerable <IKsiSignature> CreateUniSignatures(IKsiSignature rootSignature)
{
Logger.Debug("Start creating uni-signatures.");
AggregationHashChain existingAggregationHashChain = rootSignature.GetAggregationHashChains()[0];
byte[] rootSignatureData = rootSignature.EncodeValue();
ulong[] chainIndex = PrepareChainIndex(existingAggregationHashChain);
foreach (TreeNode node in _leafNodes)
{
using (MemoryStream stream = new MemoryStream())
{
AggregationHashChain aggregationHashChain = GetAggregationHashChain(existingAggregationHashChain, node, chainIndex);
aggregationHashChain.WriteTo(stream);
// Take root node signature data and add aggregation hash chain.
byte[] signatureData = new byte[rootSignatureData.Length + stream.Length];
Array.Copy(stream.ToArray(), signatureData, stream.Length);
Array.Copy(rootSignatureData, 0, signatureData, stream.Length, rootSignatureData.Length);
// Create new signature from the signature data.
yield return(_signatureFactory.CreateByContent(signatureData, node.Hash));
}
}
Logger.Debug("End creating uni-signatures.");
}
public void CreateFromPartsTest()
{
KsiSignatureFactory signatureFactory = new KsiSignatureFactory();
IKsiSignature signature;
using (FileStream stream = new FileStream(Path.Combine(TestSetup.LocalPath, Resources.KsiSignature_Ok), FileMode.Open))
{
signature = new KsiSignatureFactory().Create(stream);
}
IKsiSignature newSignature = signatureFactory.Create(signature.GetAggregationHashChains(), signature.CalendarHashChain, signature.CalendarAuthenticationRecord,
signature.PublicationRecord,
signature.Rfc3161Record, signature.InputHash);
Assert.AreEqual(signature.EncodeValue(), newSignature.EncodeValue(), "Signatures should be equal.");
}