public static byte[] SignRsa(RSACryptoServiceProvider rsaCsp, byte[] hash)
{
if (rsaCsp == null)
{
throw new ArgumentNullException(nameof(rsaCsp));
}
if (hash == null)
{
throw new ArgumentNullException(nameof(hash));
}
var cspInfo = rsaCsp.CspKeyContainerInfo;
var provider = new CngProvider(cspInfo.ProviderName);
var options = CngKeyOpenOptions.None;
if (cspInfo.MachineKeyStore)
{
options = CngKeyOpenOptions.MachineKey;
}
using (var cngKey = CngKey.Open(cspInfo.KeyContainerName, provider, options))
{
var result = NCryptInterop.SignHashRaw(cngKey, hash, rsaCsp.KeySize);
return(result);
}
}
public static byte[] SignRsa(CngKey cngKey, byte[] hash)
{
if (cngKey == null)
{
throw new ArgumentNullException(nameof(cngKey));
}
if (hash == null)
{
throw new ArgumentNullException(nameof(hash));
}
var result = NCryptInterop.SignHashRaw(cngKey, hash, cngKey.KeySize);
return(result);
}
