private void OptionValidateDocument_Click(object sender, EventArgs e)
{
try
{
string toValidate = UploadedDocumentClass.GetFileContent();
DigitalSignatureClass signObject = new DigitalSignatureClass();
bool isValid = signObject.ValidateDocument(toValidate);
LoadingScreenForm loadScreen = new LoadingScreenForm(UploadedDocumentClass.GetFileName(), "Validating Signature");
loadScreen.ShowDialog();
if (isValid)
{
MessageBox.Show("Signature is VALID", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("Signature is NOT valid", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
catch
{
MessageBox.Show("Signature is NOT valid", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void OptionEncryptAES_Click(object sender, EventArgs e)
{
SymmetricCryptography encrypterAES = new SymmetricCryptography(false);
string contentToEncrypt = UploadedDocumentClass.GetFileContent();
string encrypted = encrypterAES.EncryptDocumentAES(contentToEncrypt);
LoadingScreenForm loadScreen = new LoadingScreenForm(UploadedDocumentClass.GetFileName(), "AES Encryption");
loadScreen.ShowDialog();
SaveToTxt("helpfile_aes_encrypted", encrypted);
outputScreen.Text = "Encrypted with AES: \r\n" + encrypted;
}
private void OptionSignDocument_Click(object sender, EventArgs e)
{
string toSign = UploadedDocumentClass.GetFileContent();
DigitalSignatureClass signObject = new DigitalSignatureClass();
string signedDocument = signObject.SignDocument(toSign);
LoadingScreenForm loadScreen = new LoadingScreenForm(UploadedDocumentClass.GetFileName(), "Digital Signature");
loadScreen.ShowDialog();
SaveToTxt("helpfile_signature", signedDocument + "\r\n" + toSign);
outputScreen.Text = "SHA1 digest: \r\n" + signObject.GetDigestForSign();
outputScreen.Text += "\r\n\r\nSigned document: \r\n" + signedDocument;
}
private void OptionEncryptRSA_Click(object sender, EventArgs e)
{
AsymmetricCryptography encrypterRSA = new AsymmetricCryptography();
encrypterRSA.GenerateKeys();
string contentToEncrypt = UploadedDocumentClass.GetFileContent();
string encrypted = encrypterRSA.EncryptDocumentRSA(contentToEncrypt);
LoadingScreenForm loadScreen = new LoadingScreenForm(UploadedDocumentClass.GetFileName(), "RSA Encryption");
loadScreen.ShowDialog();
SaveToTxt("helpfile_rsa_encrypted", encrypted);
outputScreen.Text = "Encrypted with RSA: \r\n" + encrypted;
}
/// <summary>
/// Metoda koja se poziva na klik tipke za SHA1 sažimanje
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void OptionSHA1Digest_Click(object sender, EventArgs e)
{
string docContent = UploadedDocumentClass.GetFileContent();
SHADigestClass shaObject = new SHADigestClass(docContent);
string calculatedDigest = "";
shaObject.GetDigest();
calculatedDigest = shaObject.GetStringDigest();
SaveToTxt("helpfile_sha1_digest", calculatedDigest);
LoadingScreenForm loadScreen = new LoadingScreenForm(UploadedDocumentClass.GetFileName(), "SHA1 Digest");
loadScreen.ShowDialog();
outputScreen.Text = "SHA1 digest: \r\n" + calculatedDigest;
}
private void OptionDecryptAES_Click(object sender, EventArgs e)
{
try
{
SymmetricCryptography decrypterAES = new SymmetricCryptography(true);
string contentToDecrypt = UploadedDocumentClass.GetFileContent();
string decrypted = decrypterAES.DecryptDocumentAES(contentToDecrypt);
LoadingScreenForm loadScreen = new LoadingScreenForm(UploadedDocumentClass.GetFileName(), "AES Decryption");
loadScreen.ShowDialog();
SaveToTxt("helpfile_aes_decrypted", decrypted);
outputScreen.Text = "Decrypted with AES: \r\n" + decrypted;
}
catch
{
MessageBox.Show("Document is not valid AES encryption", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
