private static void DecryptFile(CryptVerbs options, Keyset keys, string file)
{
byte[] input = File.ReadAllBytes(file);
if (!string.IsNullOrEmpty(options.Salsa20KeyEncrypt))
{
byte[] keyBytes = MiscUtils.StringToByteArray(options.Salsa20KeyEncrypt);
using SymmetricAlgorithm salsa20 = new Salsa20SymmetricAlgorithm();
byte[] dataKey = new byte[8];
Console.WriteLine($"[:] Salsa Encrypting '{file}'..");
using var decrypt = salsa20.CreateDecryptor(keyBytes, dataKey);
decrypt.TransformBlock(input, 0, input.Length, input, 0);
}
else if (!string.IsNullOrEmpty(options.Salsa20KeyDecrypt))
{
byte[] keyBytes = MiscUtils.StringToByteArray(options.Salsa20KeyDecrypt);
using SymmetricAlgorithm salsa20 = new Salsa20SymmetricAlgorithm();
byte[] dataKey = new byte[8];
Console.WriteLine($"[:] Salsa Decrypting '{file}'..");
using var encrypt = salsa20.CreateEncryptor(keyBytes, dataKey);
encrypt.TransformBlock(input, 0, input.Length, input, 0);
}
else
{
Console.WriteLine($"[:] Crypting '{file}'..");
keys.CryptData(input, 0);
}
Console.WriteLine($"[:] Saving file as {file}.dec..");
File.WriteAllBytes(file, input);
}
public static void Crypt(CryptVerbs options)
{
if (!File.Exists(options.InputPath))
{
Console.WriteLine("[X] File to encrypt does not exist.");
return;
}
byte[] input = File.ReadAllBytes(options.InputPath);
if (!string.IsNullOrEmpty(options.Salsa20KeyEncrypt))
{
byte[] keyBytes = MiscUtils.StringToByteArray(options.Salsa20KeyEncrypt);
using SymmetricAlgorithm salsa20 = new Salsa20();
byte[] dataKey = new byte[8];
Console.WriteLine("[:] Encrypting..");
using var decrypt = salsa20.CreateDecryptor(keyBytes, dataKey);
decrypt.TransformBlock(input, 0, input.Length, input, 0);
}
else if (!string.IsNullOrEmpty(options.Salsa20KeyDecrypt))
{
byte[] keyBytes = MiscUtils.StringToByteArray(options.Salsa20KeyDecrypt);
using SymmetricAlgorithm salsa20 = new Salsa20();
byte[] dataKey = new byte[8];
Console.WriteLine("[:] Decrypting..");
using var encrypt = salsa20.CreateEncryptor(keyBytes, dataKey);
encrypt.TransformBlock(input, 0, input.Length, input, 0);
}
else
{
Keyset[] keysets = CheckKeys();
if (keysets is null)
{
return;
}
Keyset keys = keysets.Where(e => e.GameCode.Equals(options.GameCode, StringComparison.OrdinalIgnoreCase)).FirstOrDefault();
if (keys is null)
{
Console.WriteLine($"Keyset with GameCode '{options.GameCode}' does not exist in the keyset file.");
return;
}
Console.WriteLine("[!] Crypting..");
keys.CryptData(input, 0);
}
Console.WriteLine($"[:] Saving file as {options.OutputPath}..");
File.WriteAllBytes(options.OutputPath, input);
Console.WriteLine("[/] Done.");
}
public static void Crypt(CryptVerbs options)
{
Keyset keys = null;
if (string.IsNullOrEmpty(options.Salsa20KeyEncrypt) && string.IsNullOrEmpty(options.Salsa20KeyDecrypt))
{
Keyset[] keysets = CheckKeys();
if (keysets is null)
{
return;
}
keys = keysets.Where(e => e.GameCode.Equals(options.GameCode, StringComparison.OrdinalIgnoreCase)).FirstOrDefault();
if (keys is null)
{
Console.WriteLine($"Keyset with GameCode '{options.GameCode}' does not exist in the keyset file.");
return;
}
}
foreach (var file in options.InputPath)
{
if (!File.Exists(file) && !Directory.Exists(file))
{
Console.WriteLine($"[X] File or folder '{file}' to decrypt/encrypt does not exist.");
continue;
}
bool isDir = File.GetAttributes(file).HasFlag(FileAttributes.Directory);
if (isDir)
{
foreach (var dirFile in Directory.GetFiles(file))
{
DecryptFile(options, keys, dirFile);
}
}
else
{
DecryptFile(options, keys, file);
}
}
Console.WriteLine("[/] Done.");
}