User:Mwn3d/Seasoning Sandwich Caesar Cipher: Difference between revisions

Content added Content deleted
m (Updated to use arrays instead of Maps. No idea what I was thinking.)
(This is probably getting way too crazy...add code to make the noise look more like the actual message with word length restrictions)
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StringBuilder encoded = new StringBuilder();
StringBuilder encoded = new StringBuilder();
if(addNoise){ //if we are encoding
if(addNoise){ //if we are encoding
StringBuilder noise = genNoise(enc.replaceAll("\\W", "")); //get noise based on the original string ignoring non-letter characters
StringBuilder noise = genNoise(enc); //get noise based on the original string ignoring non-letter characters
noise.insert((int)(Math.random() * noise.length()), " " + enc + " "); //insert the message into a random place in the noise
noise.insert((int)(Math.random() * noise.length()), " " + enc + " "); //insert the message into a random place in the noise
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* Generate noise to surround the actual message
* Generate noise to surround the actual message
*/
*/
private static StringBuilder genNoise(String enc){
private static StringBuilder genNoise(String orig){
//remove all non-word chars for figuring out which letters to include in noise
String enc = orig.replaceAll("\\W", "");
//get the number of each letter needed to bring them all up to the same frequency
//get the number of each letter needed to bring them all up to the same frequency
int[] invertedFreq = invert(letterFreq(enc));
int[] invertedFreq = invert(letterFreq(enc));
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StringBuilder noise = new StringBuilder();
StringBuilder noise = new StringBuilder();
Random rand = new Random();
Random rand = new Random();
double meanLen = getMeanLen(orig.split("\\b++"));
⚫
int waitForSpace = rand.nextInt(rand.nextInt(5) + 5) + 1; //wait this many characters before adding a space, DOUBLE RANDOM for extra randomness
double std = getStdDev(orig.split("\\b++"));
⚫
int waitForSpace = (int)(rand.nextGaussian() * std + meanLen) + 1; //wait this many characters before adding a space
while(rawNoise.length() > 0){ //while we still have letters left to add
while(rawNoise.length() > 0){ //while we still have letters left to add
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if(waitForSpace == 0){ //if we hit the wait time
if(waitForSpace == 0){ //if we hit the wait time
noise.append(' '); //add a space
noise.append(' '); //add a space
do{
waitForSpace = rand.nextInt(rand.nextInt(5) + 5) + 1; //select a new wait time
waitForSpace = (int)(rand.nextGaussian() * std + meanLen) + 1; //select a new wait time
}while(waitForSpace == 0);
}
}
}
}
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return freqLet;
return freqLet;
}
private static double getMeanLen(String[] words){
int total = 0;
for(String word:words){
total += word.length();
}
return (double)total / words.length;
}
private static double getStdDev(String[] words){
double mean = getMeanLen(words);
int totalDiff = 0;
for(String word:words){
totalDiff += (int)Math.pow(word.length() - mean, 2);
}
return Math.sqrt(totalDiff / words.length);
}
}
}</lang>
}</lang>
{{out}}
{{out}}
<pre>The quick brown fox Jumped over the lazy Dog and then he landed on a cat and it hurt
<pre>The quick brown fox Jumped over the lazy Dog and then he landed on a cat and it hurt
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m fj ubbx mplkw ssx zwi g urbwv jfjpli n q q zyv yvmyk the quick brown fox jumped over the lazy dog and then he landed on a cat and it hurt fhssiv wgmqyox sw bbpg zlkxql jzog yrwqc pvg rups git fcij kczrfz bcyvqh dxmk asl pmujcf k x</pre>
hgz ki spxq igxl op zr lix hl xcg u fz bx bs yvbv vu bm tgf gi mjwy yx krg jjk plmi lkzr zvb affz krj kcqjf v usd csp pnmw the quick brown fox jumped over the lazy dog and then he landed on a cat and it hurt js qw qqw syv myqpw of cwm sy cbu</pre>
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