byte[] EncryptKeyForArchival(byte[] keyToExport, string passphrase, byte[] salt)
{
RijndaelManaged archivalEncryptionAlgorithm = new RijndaelManaged();
byte[] rgbKey = this.GenerateArchivalKey(archivalEncryptionAlgorithm, passphrase, salt);
byte[] rgbIV = new byte[archivalEncryptionAlgorithm.BlockSize / 8];
return(CryptographyUtility.Transform(archivalEncryptionAlgorithm.CreateEncryptor(rgbKey, rgbIV), keyToExport));
}
byte[] DecryptKeyForRestore(string passphrase, byte[] encryptedKey, byte[] salt)
{
RijndaelManaged archivalEncryptionAlgorithm = new RijndaelManaged();
byte[] rgbKey = this.GenerateArchivalKey(archivalEncryptionAlgorithm, passphrase, salt);
byte[] rgbIV = new byte[archivalEncryptionAlgorithm.BlockSize / 8];
byte[] buffer3 = CryptographyUtility.Transform(archivalEncryptionAlgorithm.CreateDecryptor(rgbKey, rgbIV), encryptedKey);
CryptographyUtility.ZeroOutBytes(rgbKey);
return(buffer3);
}
static byte[] Transform(ICryptoTransform transform, byte[] buffer)
{
return(CryptographyUtility.Transform(transform, buffer));
}