public void quiz1_q1() {
FileResource fr = new FileResource("../secretmessage1.txt");
String encrypted = fr.asString();
int[] key = new int[4];
key = tryKeyLength(encrypted, 4, 'e');
for (int i = 0; i < 4; i++) {
System.out.println(key[i]);
}
}
public void testTryKeyLength() {
FileResource fr = new FileResource("athens_keyflute.txt");
String encrypted = fr.asString();
int[] key = new int[5];
key = tryKeyLength(encrypted, 5, 'e');
for (int i = 0; i < 5; i++) {
System.out.println(key[i]);
}
}
public void breakVigenere() {
// read in the encrypted message
FileResource fr = new FileResource();
String encrypted = fr.asString();
// read in the dictionary of valid words
FileResource dictRes = new FileResource("dictionaries/English");
HashSet<String> dict = readDictionary(dictRes);
String decrypted = breakForLanguage(encrypted, dict);
System.out.println(decrypted);
}
public void testBreakForAllLanguages() {
// read in the encrypted message
FileResource fr2 = new FileResource("athens_keyflute.txt");
String encrypted = fr2.asString();
HashMap<String, HashSet<String>> myMap = new HashMap<String, HashSet<String>>();
FileResource fr = new FileResource("dictionaries/English");
HashSet<String> dict = readDictionary(fr);
myMap.put("English", dict);
FileResource fr1 = new FileResource("dictionaries/Spanish");
HashSet<String> dict1 = readDictionary(fr1);
myMap.put("Spanish", dict1);
breakForAllLanguages(encrypted, myMap);
}
/*
* method to return a HashSet of words lower-cased and read from the file
* passed in as a parameter
*/
public HashSet<String> readDictionary(FileResource fr) {
// create a HashSet which you will be returning
HashSet<String> dict = new HashSet<String>();
for (String line : fr.lines()) {
// convert to lowercase and add to the dictionary
line = line.toLowerCase();
dict.add(line);
}
return dict;
}
