diff --git a/src/main/java/com/mattrixwv/CipherStreamJava/monoSubstitution/OneTimePad.java b/src/main/java/com/mattrixwv/CipherStreamJava/monoSubstitution/OneTimePad.java
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+++ b/src/main/java/com/mattrixwv/CipherStreamJava/monoSubstitution/OneTimePad.java
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+//CipherStreamJava/src/main/java/com/mattrixwv/CipherStreamJava/monoSubstitution/OneTimePad.java
+//Mattrixwv
+// Created: 02-23-22
+//Modified: 02-23-22
+package com.mattrixwv.CipherStreamJava.monoSubstitution;
+
+
+import com.mattrixwv.CipherStreamJava.exceptions.InvalidInputException;
+import com.mattrixwv.CipherStreamJava.exceptions.InvalidKeywordException;
+
+
+public class OneTimePad extends Vigenere{
+	//?Add some kind of entropy calculator?
+	//?Add some kind of "book passage includer"?
+
+
+	//Constructor
+	public OneTimePad(){
+		super();
+	}
+	public OneTimePad(boolean preserveCapitals, boolean preserveWhitespace, boolean preserveSymbols){
+		super(preserveCapitals, preserveWhitespace, preserveSymbols);
+	}
+
+	//Encodes input using key and returns the result
+	@Override
+	public String encode(String keyword, String inputString) throws InvalidKeywordException, InvalidInputException{
+		if(keyword.length() < inputString.length()){
+			throw new InvalidKeywordException("Key must be at least as long as the input");
+		}
+		return super.encode(keyword, inputString);
+	}
+	//Decodes input using key and returns the result
+	@Override
+	public String decode(String keyword, String inputString) throws InvalidKeywordException, InvalidInputException{
+		if(keyword.length() < inputString.length()){
+			throw new InvalidKeywordException("Key must be at least as long as the input");
+		}
+		return super.decode(keyword, inputString);
+	}
+}