/// <summary>
/// Constructs internal context for Pkcs11Token class
/// </summary>
/// <param name="slotContext">Internal context for Pkcs11Slot class</param>
/// <returns>Internal context for Pkcs11Token class</returns>
private Pkcs11TokenContext GetTokenContext(Pkcs11SlotContext slotContext)
{
var tokenInfo = new Pkcs11TokenInfo(slotContext.Slot.GetTokenInfo());
Session masterSession = (!tokenInfo.Initialized) ? null : slotContext.Slot.OpenSession(SessionType.ReadOnly);
return(new Pkcs11TokenContext(tokenInfo, masterSession, slotContext));
}
/// <summary>
/// Requests PIN code for PKCS#11 token
/// </summary>
/// <param name="tokenContext">Internal context for Pkcs11Token class</param>
/// <returns>PIN code</returns>
public static byte[] GetTokenPin(Pkcs11TokenContext tokenContext)
{
IPinProvider pinProvider = tokenContext.SlotContext.StoreContext.PinProvider;
Pkcs11X509StoreInfo storeInfo = tokenContext.SlotContext.StoreContext.StoreInfo;
Pkcs11SlotInfo slotInfo = tokenContext.SlotContext.SlotInfo;
Pkcs11TokenInfo tokenInfo = tokenContext.TokenInfo;
GetPinResult getPinResult = pinProvider.GetTokenPin(storeInfo, slotInfo, tokenInfo);
if (getPinResult == null)
{
throw new Exception("Invalid response from IPinProvider");
}
if (getPinResult.Cancel)
{
throw new LoginCancelledException("Login with token pin was cancelled");
}
return(getPinResult.Pin);
}
/// <summary>
/// Creates new instance of Pkcs11TokenContext class
/// </summary>
/// <param name="tokenInfo">Detailed information about PKCS#11 token (cryptographic device)</param>
/// <param name="authenticatedSession">High level PKCS#11 session that holds authenticated state of the token</param>
/// <param name="slotContext">Internal context for Pkcs11Slot class</param>
internal Pkcs11TokenContext(Pkcs11TokenInfo tokenInfo, ISession authenticatedSession, Pkcs11SlotContext slotContext)
{
_tokenInfo = tokenInfo ?? throw new ArgumentNullException(nameof(tokenInfo));
_authenticatedSession = authenticatedSession;
_slotContext = slotContext ?? throw new ArgumentNullException(nameof(slotContext));
}