public static MinerWallet Open(string path, SecureString password)
{
byte[] data;
byte[] iv = new byte[16];
using (FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read))
{
fs.Read(iv, 0, iv.Length);
data = new byte[fs.Length - iv.Length];
fs.Read(data, 0, data.Length);
}
byte[] masterKey = password.ToArray().Sha256().Sha256();
using (AesManaged aes = new AesManaged())
using (ICryptoTransform decryptor = aes.CreateDecryptor(masterKey, iv))
{
return new MinerWallet(decryptor.TransformFinalBlock(data, 0, data.Length));
}
}
private void Save(string path, SecureString password)
{
byte[] masterKey = password.ToArray().Sha256().Sha256();
byte[] iv = new byte[16];
byte[] data;
using (RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider())
{
rng.GetNonZeroBytes(iv);
}
using (AesManaged aes = new AesManaged())
using (ICryptoTransform encryptor = aes.CreateEncryptor(masterKey, iv))
{
ProtectedMemory.Unprotect(key_exported, MemoryProtectionScope.SameProcess);
data = encryptor.TransformFinalBlock(key_exported, 0, key_exported.Length);
ProtectedMemory.Protect(key_exported, MemoryProtectionScope.SameProcess);
}
using (FileStream fs = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.None))
{
fs.Write(iv, 0, iv.Length);
fs.Write(data, 0, data.Length);
}
}