public static void Encrypt(bool usePassword, string keyfile, string privateKey, string publicKey, string[] filePaths)
{
if (usePassword || !string.IsNullOrEmpty(keyfile))
{
char[] password = Array.Empty <char>();
if (usePassword)
{
password = PasswordPrompt.EnterNewPassword();
}
FileEncryptionWithPassword(password, keyfile, filePaths);
}
else if (!string.IsNullOrEmpty(publicKey) && !string.IsNullOrEmpty(privateKey))
{
if (publicKey.EndsWith(Constants.PublicKeyExtension))
{
FileEncryptionWithPublicKey(privateKey, publicKey, filePaths);
return;
}
// Use private key string
FileEncryptionWithPublicKey(privateKey, publicKey.ToCharArray(), filePaths);
}
else if (!string.IsNullOrEmpty(privateKey))
{
FileEncryptionWithPrivateKey(privateKey, filePaths);
}
else
{
DisplayMessage.Error("Please either specify a (password and/or keyfile), (private key and public key), or private key.");
}
}
public static (string publicKey, string privateKey) GenerateSigningKeyPair()
{
char[] password = PasswordPrompt.EnterNewPassword();
byte[] passwordBytes = Password.Hash(password);
using var keyPair = PublicKeyAuth.GenerateKeyPair();
byte[] publicKey = Utilities.ConcatArrays(Constants.Ed25519KeyHeader, keyPair.PublicKey);
byte[] encryptedPrivateKey = PrivateKey.Encrypt(passwordBytes, keyPair.PrivateKey, Constants.Ed25519KeyHeader);
return(ConvertKeys(publicKey, encryptedPrivateKey));
}
public static (string publicKey, string privateKey) GenerateEncryptionKeyPair()
{
char[] password = PasswordPrompt.EnterNewPassword();
byte[] passwordBytes = Password.Hash(password);
using var keyPair = PublicKeyBox.GenerateKeyPair();
byte[] publicKey = Arrays.Concat(Constants.Curve25519KeyHeader, keyPair.PublicKey);
byte[] encryptedPrivateKey = PrivateKey.Encrypt(passwordBytes, Constants.Curve25519KeyHeader, keyPair.PrivateKey);
return(ConvertKeys(publicKey, encryptedPrivateKey));
}
public static byte[] Decrypt(byte[] privateKey)
{
try
{
char[] password = PasswordPrompt.EnterYourPassword();
byte[] passwordBytes = Password.Hash(password);
return(Decrypt(passwordBytes, privateKey));
}
catch (CryptographicException)
{
DisplayMessage.Error("Incorrect password or the private key has been tampered with.");
return(null);
}
}