private string signText(string inputText)
{
IPrivKey secretKey = null;
try
{
secretKey = IPriv.openSecretKey(m_Configuration.SecretKeyPath, m_Configuration.SecretKeyPassword);
return(secretKey.signText(inputText));
}
catch (IPrivException err)
{
throw new CryptographicException(err + " (код ошибки = " + err.code + ")", err);
}
finally
{
secretKey?.closeKey();
}
}
private void verifyText(string inputText)
{
IPrivKey publicKey = null;
try
{
publicKey = IPriv.openPublicKey(m_Configuration.PublicKeyPath, Convert.ToUInt32(m_Configuration.PublicKeySerial, 10));
publicKey.verifyText(inputText); // If this step is successfull, then signature is valid
}
catch (IPrivException err)
{
throw new CryptographicException(err + " (код ошибки = " + err.code + ")", err);
}
finally
{
publicKey?.closeKey();
}
}
/// <summary>Fail-fast checking of keys opening.</summary>
private void checkKeys()
{
checkKeyPath(m_Configuration.SecretKeyPath);
checkKeyPath(m_Configuration.PublicKeyPath);
IPrivKey secretKey = null;
IPrivKey publicKey = null;
try
{
secretKey = IPriv.openSecretKey(m_Configuration.SecretKeyPath, m_Configuration.SecretKeyPassword);
publicKey = IPriv.openPublicKey(m_Configuration.PublicKeyPath, Convert.ToUInt32(m_Configuration.PublicKeySerial, 10));
}
finally
{
secretKey?.closeKey();
publicKey?.closeKey();
}
}
private string Sign(string message)
{
string res = null;
IPrivKey sec = null;
try
{
sec = IPriv.openSecretKey(SecretKey, Password);
res = sec.signText(message);
}
catch (IPrivException ex)
{
Functions.AddEvent("Error signing the message!", string.Format("Sign!: [{0}]", ex.Message), EventType.Critical, null, ex);
}
if (sec != null)
{
sec.closeKey();
}
return(res);
}
private bool VerifySign(string message)
{
var res = false;
IPrivKey pub = null;
try
{
pub = IPriv.openPublicKey(PublicKey, Convert.ToUInt32(SerialNumber, 10));
pub.verifyText(message);
Functions.AddEvent("Signature valid!",
string.Format("VerifySign: [{0}]", message), EventType.Info);
res = true;
}
catch (IPrivException ex)
{
Functions.AddEvent("Error during signature verification!", string.Format("VerifySign!: [{0}]", ex.Message), EventType.Critical, null, ex);
}
if (pub != null)
{
pub.closeKey();
}
return(res);
}
