static int Encrypt(EncryptParameters p)
{
_arguments = p;
EnsureCanOverwriteDestination(p);
using (var decryptedStream = new FileStream(p.SourceFileName, FileMode.Open, FileAccess.Read, FileShare.None))
using (var encryptedStream = new FileStream(p.DestinationFileName, FileMode.Create, FileAccess.Write, FileShare.None))
using (var cipher = new EncryptedNewKeyCipher(p.Certificate))
{
cipher.Base64Encoded = p.Base64Encoded;
cipher.Encrypt(decryptedStream, encryptedStream);
}
return(0);
}
static int Decrypt(DecryptParameters p)
{
_arguments = p;
EnsureCanOverwriteDestination(p);
var retryWithBase64 = false;
do
{
try
{
using (var encryptedStream = new FileStream(p.SourceFileName, FileMode.Open, FileAccess.Read, FileShare.None))
using (var decryptedStream = new FileStream(p.DestinationFileName, FileMode.Create, FileAccess.Write, FileShare.None))
using (var cipher = new EncryptedNewKeyCipher(p.Certificate))
{
cipher.Base64Encoded = retryWithBase64;
cipher.Decrypt(encryptedStream, decryptedStream);
retryWithBase64 = false;
}
}
catch (ArgumentException x) when(x.ParamName == "encryptedStream")
{
if (retryWithBase64)
{
throw;
}
using (var reader = new StreamReader(p.SourceFileName, Encoding.ASCII))
{
for (var i = 0; i < 5 && !reader.EndOfStream; i++)
{
var line = reader.ReadLine();
if (!Regex.IsMatch(line, _base64Regex))
{
throw;
}
}
retryWithBase64 = true;
}
}
}while (retryWithBase64);
return(0);
}
static void Main(string[] args)
{
if (ParseArguments(args))
{
try
{
var cert = GetCert(_certSubject, _certThumbprint);
using (var cipher = new EncryptedNewKeyCipher(cert))
{
if (_base64)
{
cipher.Base64Encoded = true;
}
if (_encrypt)
{
using (var decryptedStream = new FileStream(_clearText, FileMode.Open, FileAccess.Read, FileShare.None))
using (var encryptedStream = new FileStream(_encryptedText, FileMode.Create, FileAccess.Write, FileShare.None))
cipher.Encrypt(decryptedStream, encryptedStream);
}
if (_decrypt)
{
using (var encryptedStream = new FileStream(_encryptedText, FileMode.Open, FileAccess.Read, FileShare.None))
using (var decryptedStream = new FileStream(_decryptedText, FileMode.Create, FileAccess.Write, FileShare.None))
cipher.Decrypt(encryptedStream, decryptedStream);
}
}
}
catch (Exception x)
{
Console.WriteLine(x.ToString());
Usage();
}
}
#if DEBUG
Console.WriteLine(Resources.PressAnyKey);
Console.ReadKey(true);
#endif
}
