Comparing Strings in Arduino C++?

I'm currently writing some arduino code for a GUI with with Keypad and 16x2 LCD implementation. Part of my program requires a password to be entered before certain content on the Arduino can be accessed, however I can't seem to figure out how to get my saved password and given input to work properly.

String pswd = "0000";char* Input(int Length, byte clmn, byte row) { char output[Length];int i = 0;while (i < Length) {char KeyPress = keypad.getKey();lcd.setCursor(clmn,row);if (KeyPress == '0' || KeyPress == '1' || KeyPress == '2' || KeyPress == '3' || KeyPress == '4' || KeyPress == '5' || KeyPress == '6' || KeyPress == '7' || KeyPress == '8' ||KeyPress == '9') {output[i] = KeyPress;lcd.print(KeyPress);i++;clmn++; lcd.setCursor(i+1,0);lcd.cursor();} }delay(3000);Serial.println(output);return output;}bool Is_Psswrd() { bool Passed = false;char *Test;String test;CH2 = true; while (CH2) { say("Password: ",0,0);Test = Input(4, 10, 0);test = Test;if (test==pswd) {Passed = true;CH2 = false; }else {for(int i = 0; i < 3; i++) {lcd.clear();say("Incorrect ",0,0);delay(200); } } }return Passed;} void setup() {Is_Psswrd();}void loop() {}

I've tried alot of different things for saving, inputting, and checking characters, some more jankier than others. My original plan was to save all variables as char* variables and use the strcmp() function, but that didn't seem to work (strcmp() kept outputting "144") and I learned I needed const char* to make the function work properly. I've given the code I believe is needed to access the issue, but if you need the rest of the code I can paste it.

I am very new to C++. Most of my code is written in Java. Can someone please explain what needs to be done to get two char*/strings to compare in the way I want. I am open to fully rewriting my functions I just need to get this implemented.