toSafe method

String toSafe(String password)

Encrypts the string using AES encryption with a provided password.

This method uses AES encryption in CBC mode. The password is adjusted to be exactly 32 bytes long, with the first 16 bytes used as the initialization vector (IV).

Example:

var originalText = 'Hello World';
var encrypted = originalText.toSafe('your-password-here');
print(encrypted); // Outputs encrypted base64 string

password The password used for encryption. It is truncated or padded to 32 bytes.

Returns the encrypted string encoded in base64.

Implementation

String toSafe(String password) {
  try {
    if (password.length > 32) {
      password = password.substring(0, 32);
    } else if (password.length < 32) {
      while (password.length != 32) {
        password += '-';
      }
    }

    var key = Key.fromUtf8(password);

    password = password.substring(0, 16);
    final iv = IV.fromUtf8(password);

    final e = Encrypter(AES(key, mode: AESMode.cbc));
    final encryptedData = e.encrypt(this, iv: iv);
    return encryptedData.base64;
  } catch (e) {
    return '';
  }
}