byte[] CreateKeyVaultSignature(X509Certificate2 publicCert, SignatureManifest signatureManifest)
{
var chain = new X509Chain();
chain.Build(publicCert);
// Get the chain as bc certs
var additionals = chain.ChainElements.Cast <X509ChainElement>()
.Select(ce => DotNetUtilities.FromX509Certificate(ce.Certificate))
.ToList();
chain.Dispose();
var bcCer = DotNetUtilities.FromX509Certificate(publicCert);
var store = X509StoreFactory.Create("Certificate/Collection", new X509CollectionStoreParameters(additionals));
var generator = new CmsSignedDataGenerator();
var builder = new SignerInfoGeneratorBuilder();
var b = builder.Build(new RsaSignatureFactory("SHA256WITHRSA", provider), bcCer);
generator.AddSignerInfoGenerator(b);
generator.AddCertificates(store);
var msg = new CmsProcessableByteArray(signatureManifest.GetBytes());
var data = generator.Generate(msg, true);
var encoded = data.GetEncoded();
return(encoded);
}
public void Finialize(SignatureManifest manifest)
{
// Here we want to make sure that all
// resources have been released and
// all signature/temp files have been
// erased.
using (RdcServices rdcServices = new RdcServices())
{
rdcServices.PurgeSignatureStore(manifest.Signatures);
}
}
private IList <LocalRemotePair> PrepareSigPairs(SignatureManifest signatureManifest)
{
var remoteSignatures = signatureManifest.Signatures;
var localSignatures = localSignatureRepository.GetByFileName().ToList();
var length = Math.Min(remoteSignatures.Count, localSignatures.Count);
var remoteSignatureNames = remoteSignatures.Skip(remoteSignatures.Count - length).Take(length).Select(item => item.Name).ToList();
var localSignatureNames = localSignatures.Skip(localSignatures.Count - length).Take(length).Select(item => item.Name).ToList();
return(localSignatureNames.Zip(remoteSignatureNames,
(local, remote) => new LocalRemotePair {
Local = local, Remote = remote
}).ToList());
}
public Task <SignatureManifest> GetSignatureManifestAsync(DataInfo dataInfo)
{
return(Task.Factory.StartNew(() =>
{
signatureBuidInProgress.GetOrAdd(dataInfo.Name, new ReaderWriterLockSlim())
.EnterUpgradeableReadLock();
IEnumerable <SignatureInfo> signatureInfos = null;
try
{
var lastUpdate = _signatureRepository.GetLastUpdate();
if (lastUpdate == null || lastUpdate < dataInfo.LastModified)
{
signatureBuidInProgress.GetOrAdd(dataInfo.Name, new ReaderWriterLockSlim())
.EnterWriteLock();
try
{
signatureInfos = PrepareSignatures(dataInfo.Name);
}
finally
{
signatureBuidInProgress.GetOrAdd(dataInfo.Name, new ReaderWriterLockSlim())
.ExitWriteLock();
}
}
else
{
signatureInfos = _signatureRepository.GetByFileName();
}
}
finally
{
signatureBuidInProgress.GetOrAdd(dataInfo.Name, new ReaderWriterLockSlim())
.ExitUpgradeableReadLock();
}
var result = new SignatureManifest
{
FileLength = dataInfo.Length,
FileName = dataInfo.Name,
Signatures = SignatureInfosToSignatures(signatureInfos)
};
return result;
}));
}
private async Task <SynchronizationReport> SynchronizeTo(IAsyncFilesSynchronizationCommands destination,
ISignatureRepository localSignatureRepository,
ISignatureRepository remoteSignatureRepository,
SignatureManifest sourceSignatureManifest,
SignatureManifest destinationSignatureManifest)
{
var seedSignatureInfo = SignatureInfo.Parse(destinationSignatureManifest.Signatures.Last().Name);
var sourceSignatureInfo = SignatureInfo.Parse(sourceSignatureManifest.Signatures.Last().Name);
using (var localFile = StorageStream.Reading(Storage, FileName))
{
IList <RdcNeed> needList;
using (var needListGenerator = new NeedListGenerator(remoteSignatureRepository, localSignatureRepository))
{
needList = needListGenerator.CreateNeedsList(seedSignatureInfo, sourceSignatureInfo, Cts.Token);
}
return(await PushByUsingMultipartRequest(destination, localFile, needList));
}
}
public SignatureManifest GetSignatureManifest(string file, int recursionDepth)
{
SignatureManifest manifest;
SignatureCollection signatures;
// Open the source Stream
using (FileStream stream = File.OpenRead(file))
{
// Initialize our managed RDC wrapper
RdcServices rdcServices = new RdcServices();
rdcServices.WorkingDirectory = Path.GetTempPath();
rdcServices.RecursionDepth = recursionDepth;
GC.Collect();
GC.WaitForPendingFinalizers();
// Generate the signature files
signatures = rdcServices.GenerateSignatures(stream, Path.GetFileName(file));
if (signatures.Count < 1)
{
throw new RdcException("Failed to generate the signatures.");
}
manifest = new SignatureManifest(file, signatures);
manifest.FileLength = stream.Length;
// Let's close the signature streams.
foreach (SignatureInfo sig in signatures)
{
sig.InnerStream.Close();
}
}
return(manifest);
}
public async Task <Signature> CreateSignatureAsync(SignPackageRequest request, SignatureManifest signatureManifest, ILogger logger, CancellationToken token)
{
if (request == null)
{
throw new ArgumentNullException(nameof(request));
}
if (signatureManifest == null)
{
throw new ArgumentNullException(nameof(signatureManifest));
}
if (logger == null)
{
throw new ArgumentNullException(nameof(logger));
}
var authorSignature = CreateKeyVaultSignature(request.Certificate, signatureManifest);
var timestamped = await TimestampSignature(request, logger, authorSignature, token);
return(timestamped);
}
