public static void VerifyFile(byte[] publicKey, string signatureFilePath, string filePath)
{
try
{
bool validSignature = DigitalSignatures.VerifySignature(signatureFilePath, filePath, publicKey);
if (!validSignature)
{
DisplayMessage.FilePathMessage(filePath, "Bad signature.");
return;
}
DisplayMessage.FilePathMessage(filePath, "Good signature.");
string comment = DigitalSignatures.GetComment();
DisplayMessage.Message($"Authenticated comment: {comment}");
}
catch (Exception ex) when(ExceptionFilters.Cryptography(ex))
{
Logging.LogException(ex.ToString(), Logging.Severity.Error);
if (ex is ArgumentOutOfRangeException)
{
DisplayMessage.Exception(ex.GetType().Name, ex.Message);
return;
}
DisplayMessage.Exception(ex.GetType().Name, "Unable to verify signature.");
}
}
public static void SignEachFile(string[] filePaths, string signatureFilePath, string comment, bool preHash, byte[] privateKey)
{
privateKey = PrivateKey.Decrypt(privateKey);
if (privateKey == null)
{
return;
}
if (string.IsNullOrEmpty(comment))
{
comment = _defaultComment;
}
foreach (string filePath in filePaths)
{
try
{
DigitalSignatures.SignFile(filePath, signatureFilePath, comment, preHash, privateKey);
DisplayMessage.FilePathMessage(filePath, "File signed successfully.");
}
catch (Exception ex) when(ExceptionFilters.Cryptography(ex))
{
DisplayMessage.FilePathException(filePath, ex.GetType().Name, "Unable to create signature.");
}
}
CryptographicOperations.ZeroMemory(privateKey);
}
public static void SignEachFile(byte[] privateKey, string comment, bool preHash, string[] filePaths)
{
privateKey = PrivateKey.Decrypt(privateKey);
if (privateKey == null)
{
return;
}
if (string.IsNullOrEmpty(comment))
{
comment = _defaultComment;
}
foreach (string filePath in filePaths)
{
try
{
DigitalSignatures.SignFile(filePath, comment, preHash, privateKey);
DisplayMessage.FilePathMessage(filePath, "File signed successfully.");
}
catch (Exception ex) when(ExceptionFilters.Cryptography(ex))
{
Logging.LogException(ex.ToString(), Logging.Severity.Error);
DisplayMessage.FilePathException(filePath, ex.GetType().Name, "Unable to create signature.");
}
}
Utilities.ZeroArray(privateKey);
}
public static void VerifyFile(string signatureFilePath, string filePath, byte[] publicKey)
{
try
{
bool validSignature = DigitalSignatures.VerifySignature(signatureFilePath, filePath, publicKey, out string comment);
if (!validSignature)
{
DisplayMessage.FilePathMessage(filePath, "Bad signature.");
return;
}
DisplayMessage.FilePathMessage(filePath, "Good signature.");
DisplayMessage.Message($"Authenticated comment: {comment}");
}
catch (Exception ex) when(ExceptionFilters.Cryptography(ex))
{
if (ex is ArgumentException)
{
DisplayMessage.FilePathMessage(signatureFilePath, ex.Message);
return;
}
DisplayMessage.Exception(ex.GetType().Name, "Unable to verify signature.");
}
}
