treasurechest/cli/ui/interfaces/encrypt/encrypt.cs

88 lines
2.8 KiB
C#

using System.IO;
using System;
using System.Text;
using Sodium;
using niceware;
using simplepack;
using chestcrypto.symmetric;
using treasurechest.STDIOWrapper;
namespace treasurechestCLI{
internal class EncryptMessageInterface{
private static void EncryptWithMnemonic(){
byte[] key = new byte[32]; // Key has to be 32 bytes in size
byte[] message; // Plaintext
string encrypted; // Ciphertext will be encoded with SimplePack.
try {
message = UTF8Encoding.UTF8.GetBytes(GetMessage.getTypedMessage());
}
catch(System.NullReferenceException){
return;
}
SimplePack packer = new SimplePack("treasure chest-message ", " end treasure chest message.");
key = SecretBox.GenerateKey();
encrypted = packer.encode(Symmetric.encrypt(message, key));
STDIO.O(encrypted);
foreach (string word in Niceware.ToPassphrase(key)){
Console.Write(word + " ");
}
STDIO.O("");
}
public static void EncryptMessage(){
int choice = 0;
int counter = 1;
translations.Strings strings = new translations.Strings();
string[] encryptMenuOptions =
{
strings.ENCRYPT_MENU_USE_PASSPHRASE,
strings.ENCRYPT_MENU_USE_PUBKEY,
strings.RETURN_TO_PREVIOUS_MENU
};
while(true){
counter = 1;
foreach(string option in encryptMenuOptions){
STDIO.O(counter.ToString() + ". " + option);
counter += 1;
}
try{
choice = Int32.Parse(System.Console.ReadLine());
}
catch (System.OverflowException){
// User being silly with input
STDIO.O(strings.MAIN_MENU_SELECT_INTEGER);
counter = 1;
}
catch(System.FormatException){
// Too lazy to check strings, force them to use int from menu which is faster anyway
STDIO.O(strings.MAIN_MENU_SELECT_INTEGER);
counter = 1;
}
catch(System.ArgumentNullException){
// Can happen when stream closes (e.g. ctrl-d)
// since menu is intended to be directly human interfaced, user probably wants to exit
choice = encryptMenuOptions.Length;
}
if (choice == 1){
EncryptWithMnemonic();
}
else if (choice == 2){
}
else if (choice == 3){
break;
}
}
}
}
}