frequencyAnalysis.h

// LetterFrequency.h
#ifndef FREQUENCYANALYSIS_H
#define FREQUENCYANALYSIS_H
#define KEY_SIZE 26

typedef struct keyPhrase {
    
    char* word;
    int  hits;
    
}KEY;


typedef struct mappedKey {
    
    char cipherLetter;
    char mappedLetter;
    int  freq;
    
}keyMap;

keyMap* letterFrequency(char * ciphertext,int shift);
int keyComparison(char* deciphertext,keyMap* key,struct keyPhrase* dictionary,int size);
void decrypt(char* ciphertext, keyMap* key,struct keyPhrase* dictionary,int size,int type);
char* calculateNoSwap(char* deciphertext,struct keyPhrase* dictionary,int size, char* noSwap);
void sort(int *array, int num_elements, char *alphabet);


#endif