static void DecryptFile(string path)
{
var pwd = PromptPassword("Password:");
var crypto = new PasswordEncryptionProvider(pwd);
using (var writeHandle = File.Open(path, FileMode.Open, FileAccess.Write, FileShare.Read))
using (var readHandle = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.Write))
{
crypto.DecryptFileAsync(readHandle, writeHandle, CancellationToken.None).GetAwaiter().GetResult();
}
}
public DecryptionFile(string encryptedPath, string password)
{
_cryptProvider = new PasswordEncryptionProvider(password);
_encryptedPath = encryptedPath;
var path = Path.Combine(Path.GetTempPath(), Path.GetFileName(encryptedPath) + ".dcrypt");
//open the encrypted file
using (var encryptedFile = new FileStream(encryptedPath, FileMode.OpenOrCreate, FileAccess.Read, FileShare.ReadWrite | FileShare.Delete))
//create the temporary decryption file
using (var decryptedFile = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.ReadWrite))
{
DecryptedPath = path;
_cryptProvider.DecryptFileAsync(encryptedFile, decryptedFile, CancellationToken.None).GetAwaiter().GetResult();
}
_origWriteTime = File.GetLastWriteTimeUtc(DecryptedPath);
}
static void EncryptFile(string path)
{
var pwd = PromptPassword("Password:"******"Confirm Password:"******"passwords do not match");
throw new InvalidPasswordException();
}
var crypto = new PasswordEncryptionProvider(pwd);
using (var writeHandle = File.Open(path, FileMode.Open, FileAccess.Write, FileShare.Read))
using (var readHandle = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.Write))
{
crypto.EncryptFileAsync(writeHandle, readHandle, CancellationToken.None).GetAwaiter().GetResult();
}
}
