private byte[] ComputeHash(EstEIDReader estEidReader, byte[] data)
{
uint rc, digest_length = 0;
const uint hash_length = Digest.SHA1_LENGTH;
Digest hash = new Digest(estEidReader);
rc = hash.InitDigest(Digest.HashAlgorithm.SHA1);
if (rc != EstEIDReader.ESTEID_OK)
{
throw new Exception(Resources.CARD_HASH_INIT);
}
rc = hash.UpdateDigest(data, (uint)data.Length);
if (rc != EstEIDReader.ESTEID_OK)
{
throw new Exception(Resources.CARD_HASH_UPDATE);
}
HGlobalSafeHandle raw = new HGlobalSafeHandle((int)hash_length);
IntPtr hashBytes = raw;
if (hashBytes == IntPtr.Zero)
{
throw new OutOfMemoryException(Resources.OUT_OF_MEMORY);
}
rc = hash.FinalizeDigest(ref hashBytes, ref digest_length);
if (rc != EstEIDReader.ESTEID_OK)
{
throw new Exception(Resources.CARD_HASH_FINALIZE);
}
return(raw.ToByteArray());
}
private byte[] ComputeHash(EstEIDReader estEidReader, PdfSignatureAppearance sap)
{
Digest hash = new Digest(estEidReader);
const uint hash_length = Digest.SHA1_LENGTH;
uint digest_length = 0;
uint rc;
rc = hash.InitDigest(Digest.HashAlgorithm.SHA1);
if (rc != EstEIDReader.ESTEID_OK)
{
throw new Exception(Resources.CARD_HASH_INIT);
}
Stream s = sap.RangeStream;
MemoryStream ss = new MemoryStream();
int read = 0;
byte[] buff = new byte[8192];
while ((read = s.Read(buff, 0, 8192)) > 0)
{
ss.Write(buff, 0, read);
rc = hash.UpdateDigest(buff, (uint)read);
if (rc != EstEIDReader.ESTEID_OK)
{
throw new Exception(Resources.CARD_HASH_UPDATE);
}
}
HGlobalSafeHandle raw = new HGlobalSafeHandle((int)hash_length);
IntPtr hashBytes = raw;
if (hashBytes == IntPtr.Zero)
{
throw new OutOfMemoryException(Resources.OUT_OF_MEMORY);
}
rc = hash.FinalizeDigest(ref hashBytes, ref digest_length);
if (rc != EstEIDReader.ESTEID_OK)
{
throw new Exception(Resources.CARD_HASH_FINALIZE);
}
return(raw.ToByteArray());
}
private byte[] EstEIDCardSign(EstEIDReader estEidReader, PKCS11Signer signer, Byte[] digest)
{
uint rc, slot;
const uint rsa_length = SIGNATURE_LENGTH;
uint digest_length = rsa_length;
string pin = string.Empty;
TokenInfo token = null;
HGlobalSafeHandle raw = new HGlobalSafeHandle((int)rsa_length);
IntPtr rsaBytes = raw;
if (rsaBytes == IntPtr.Zero)
{
throw new OutOfMemoryException(Resources.OUT_OF_MEMORY);
}
token = signer.Token;
slot = signer.Slot;
if (token.LoginRequired && token.PinIsSet)
{
if (!token.PinPadPresent)
{
pin = ReadPin(token);
// redraw window: single-threaded UI
Application.DoEvents();
// user requested Cancel ?
if (pin == null)
{
throw new CancelException(Resources.ACTION_CANCELED);
}
// no pin supplied ?
else if (pin == string.Empty)
{
throw new Exception(Resources.NO_PIN_SUPPLIED);
}
}
else
{
// we have a PINPAD present
pin = null;
statusHandler(string.Format(Resources.UI_ENTER_PIN_ONTHE_PINPAD, token.Label), false);
}
}
rc = estEidReader.Sign(slot, pin, digest, (uint)digest.Length, ref rsaBytes, ref digest_length);
// failure ?
if (rc != EstEIDReader.ESTEID_OK)
{
// signing cancelled or timed out
if (rc == PKCS11Error.CKR_FUNCTION_CANCELED)
{
throw new CancelException(Resources.ACTION_CANCELED);
}
throw new PKCS11Exception(rc);
}
return(raw.ToByteArray());
}