/// <summary>
/// Gets named registered Cryptographic Service Provider (CSP) or Key Storage Provider (KSP), its
/// information and supported cryptographic algorithms.
/// </summary>
/// <param name="name">Cryptographic provider name.</param>
/// <exception cref="PlatformNotSupportedException">
/// Current platform does not support key storage providers (prior to Windows Vista).
/// </exception>
/// <returns>Specified provider information. Method returns null if provider is not found.</returns>
public static CspProviderInfo GetProviderInfo(String name)
{
if (!CryptographyUtils.TestCNGCompat())
{
throw new PlatformNotSupportedException();
}
var providers = new CCspInformations();
providers.AddAvailableCsps();
try {
ICspInformation provider = providers.ItemByName[name];
return(new CspProviderInfo(provider));
} catch {
return(null);
}
}
internal CspObject(ICspInformation csp) {
Name = csp.Name;
Type = (ProviderTypeEnum)csp.Type;
//Algorithms = new ProviderAlgorithm(csp.CspAlgorithms);
IsHardware = csp.IsHardwareDevice;
IsSoftware = csp.IsSoftwareDevice;
IsRemovable = csp.IsRemovable;
IsSmartCard = csp.IsSmartCard;
IsLegacy = csp.LegacyCsp;
HardwareRNG = csp.HasHardwareRandomNumberGenerator;
KeyContainerLength = csp.MaxKeyContainerNameLength;
KeySpec = (X509KeySpecFlags)csp.KeySpec;
Version = csp.Version;
IsValid = csp.Valid;
Algorithms = (from ICspAlgorithm alg in csp.CspAlgorithms select new ProviderAlgorithm(alg)).ToArray();
}
internal CspProviderInfo(ICspInformation csp)
{
Name = csp.Name;
Type = (CspProviderType)csp.Type;
IsHardware = csp.IsHardwareDevice;
IsSoftware = csp.IsSoftwareDevice;
IsRemovable = csp.IsRemovable;
IsSmartCard = csp.IsSmartCard;
IsLegacy = csp.LegacyCsp;
HardwareRNG = csp.HasHardwareRandomNumberGenerator;
KeyContainerLength = csp.MaxKeyContainerNameLength;
KeySpec = (X509KeySpecFlags)csp.KeySpec;
Version = csp.Version;
IsValid = csp.Valid;
_algorithms.AddRange(from ICspAlgorithm alg in csp.CspAlgorithms select new CspProviderAlgorithmInfo(alg));
CryptographyUtils.ReleaseCom(csp);
}
