CipherStream/CipherStreamJava
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Added logging

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Mattrixwv
2022-07-09 16:55:32 -04:00
parent e9c8397b86
commit 2d7382ba8f
44 changed files with 2341 additions and 1265 deletions
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39
src/main/java/com/mattrixwv/cipherstream/monosubstitution/Autokey.java
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@@ -1,47 +1,65 @@
//CipherStreamJava/src/main/java/com/mattrixwv/CipherStreamJava/Autokey.java
//Mattrixwv
// Created: 07-25-21
//Modified: 07-03-22
//Modified: 07-09-22
package com.mattrixwv.cipherstream.monosubstitution;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.mattrixwv.cipherstream.exceptions.InvalidInputException;
import com.mattrixwv.cipherstream.exceptions.InvalidKeywordException;
public class Autokey extends Vigenere{
private static final Logger logger = LoggerFactory.getLogger(Autokey.class);
//Special rules for setting the strings for encoding
private void encodeSet(String keyword, String inputString) throws InvalidKeywordException, InvalidInputException{
logger.debug("Setting fields for encoding");
//Set the input
setInputString(inputString);
StringBuilder newKey = new StringBuilder();
//Remove all unneccessary elements from the key
logger.debug("Setting keyword");
setKeyword(keyword);
newKey.append(keyword);
//Remove all unneccessary elements from the input
logger.debug("Adding input to keyword");
setKeyword(inputString);
newKey.append(getKeyword());
//Make sure the key is not any longer than the input
logger.debug("Removing last letters in the keyword");
keyword = newKey.substring(0, getKeyword().length());
//Set the new keyword
setKeyword(keyword);
//Make sure to update the offset
offset.clear();
setOffset();
}
//Setting the strings for decoding
private void decodeSet(String keyword, String inputString) throws InvalidKeywordException, InvalidInputException{
logger.debug("Setting fields for decoding");
//Remove all unneccessary elements from the key
logger.debug("Setting keyword");
setKeyword(keyword);
//Remove all unneccessary elements from the input
logger.debug("Setting input string");
setInputString(inputString);
}
//Decodes the inputString
@Override
protected String decode(){
logger.debug("Decoding");
//Decode what the key will allow, add that to the key and continue
StringBuilder currentOutput = new StringBuilder();
StringBuilder fullOutput = new StringBuilder();
@@ -51,36 +69,55 @@ public class Autokey extends Vigenere{
for(int letterCnt = 0;letterCnt < inputString.length();++letterCnt){
//If we have reached the end of the keyword add what we have to it and continue
if(offsetCnt == keyword.length()){
logger.debug("Appending partial output to keyword");
setKeyword(keyword + currentOutput.toString());
fullOutput.append(currentOutput);
currentOutput = new StringBuilder();
}
char letter = inputString.charAt(letterCnt);
logger.debug("Working character {}", letter);
if(Character.isUpperCase(letter)){
logger.debug("Appending uppercase");
letter -= offset.get((offsetCnt++) % offset.size());
if(letter < 'A'){
logger.debug("Wrapping around to Z");
letter += 26;
}
else if(letter > 'Z'){
logger.debug("Wrapping around to A");
letter -= 26;
}
}
else if(Character.isLowerCase(letter)){
logger.debug("Appending lowercase");
letter -= offset.get((offsetCnt++) % offset.size());
if(letter < 'a'){
logger.debug("Wrapping around to z");
letter += 26;
}
else if(letter > 'z'){
logger.debug("Wrapping around to a");
letter -= 26;
}
}
logger.debug("Decoded letter {}", letter);
currentOutput.append(letter);
}
//Empty the last character that were decoded
fullOutput.append(currentOutput);
//Save and return the results
logger.debug("Saving output string '{}'", fullOutput);
outputString = fullOutput.toString();
return outputString;
}