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Question Code error


New member
Apr 15, 2019
Programming Experience
Hi everyone,
Can you help me find what conceptual problems exist in this exam question (regardless of library definitions):
string oneWayEncode(string plaintextPassword) {
   try {
      var digest = new SHA256Managed();
      //plaintextPassword = string.Concat(plaintextPassword, "salt.");
      byte[] data = digest.ComputeHash(System.Text.Encoding.UTF8.GetBytes(plaintextPassword));
      return Convert.ToBase64String(data);
   } catch (ArgumentNullException e) {
   } catch (ObjectDisposedException e) {
bool login(string username, string password) {
   string storedPassword = db.lookupField(username, "password");
   return oneWayEncode(password) == oneWayEncode(storedPassword);
Last edited by a moderator:
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