/* chmod - Change file modes                            Author: V. Archer */



/* Copyright 1991 by Vincent Archer

 *      You may freely redistribute this software, in source or binary

 *      form, provided that you do not alter this copyright mention in any

 *      way.

 */



#include <sys/types.h>

#include <sys/stat.h>

#include <dirent.h>

#include <errno.h>

#include <limits.h>

#include <stdlib.h>

#include <string.h>

#include <unistd.h>

#include <minix/minlib.h>

#include <stdio.h>

#include <assert.h>

#include <rijndael-api-fst.h>



#define MAXBC 256

#ifndef S_ISLNK

#define S_ISLNK(mode)   0

#define lstat           stat

#endif



#define USR_MODES (S_ISUID|S_IRWXU)

#define GRP_MODES (S_ISGID|S_IRWXG)

#define EXE_MODES (S_IXUSR|S_IXGRP|S_IXOTH)

#ifdef S_ISVTX

#define ALL_MODES (USR_MODES|GRP_MODES|S_IRWXO|S_ISVTX)

#else

#define ALL_MODES (USR_MODES|GRP_MODES|S_IRWXO)

#endif





/* Common variables */

char *symbolic;

mode_t new_mode, u_mask;

int rflag, errors;

struct stat st;

char path[PATH_MAX + 1];







/* Main module. The single option possible (-R) does not warrant a call to

 * the getopt() stuff.

 */

int main(argc, argv)

int argc;

char *argv[];

{

        AES_BYTE inBlock[4*MAXBC], outBlock[4*MAXBC],outBlock1[4*MAXBC], binKey[4*MAXKC];

        AES_BYTE direction,keyMaterial[32];

        keyInstance keyInst;

        cipherInstance cipherInst;

        FILE *fp;

        int i,j,k,keyLength,blockLength;

        char *test11, *test22,*initBlock,*initKey;

        char test1[1024], test2[1024];

        int x;

        int flag = 0;

        direction =0;



        //char data[20]="DATATOENCRPT";



        initKey   = "abcdeabcdeabcdeaabcdeabcdeabcdea";

        //initKey2  = "foofoofooofoofoofoofoofoofoofoof";

        keyLength = 128;

        blockLength = 8192;

        

        fp = fopen("test.txt","r");

        if(fp == NULL)

        {

                printf(" file not found \n");

                return;

        }

        else

        {

          printf("file opened, going on\n");

          while(fgets(test1,1024,fp) != NULL || flag != 1)

            {

              printf("copied some characters and am going to encrypt");

              flag = 1;

              //              printf("%s\n", test1);

              //              printf("iteration number: %d\n");

              test1[strlen(test1) -1] = '\0';

              test11 = test1;

              j = 4*MAXBC;

              for(i=0;i<j;i++)

                inBlock[i] = test11[i];

              for(i=0;i<32;i++)

                keyMaterial[i] = initKey[i];

              printf("\n key is := ");

              for(i=0;i<32;i++)

                printf("%c",keyMaterial[i]);

              printf("\n");       

              //keyInst.blockLen = blockLength;

              makeKey(&keyInst, direction, keyLength, keyMaterial);

              printf("Made key, continuing\n");

              //                        cipherInst.blockLen = blockLength;

              cipherInit (&cipherInst, MODE_ECB, NULL);

              printf("Made cipher, continuing\n");

              if (direction == DIR_ENCRYPT)

                {

                  printf("before memcpy inblock => %x and outblock => %x\n\n",inBlock,outBlock);

                  memcpy (outBlock, inBlock, blockLength/8);

                  blockEncrypt(&cipherInst, &keyInst, inBlock, blockLength, outBlock);

                  printf("\n finish encrypt inblock is => %x and outblock is => %x

\n",inBlock,outBlock);

                }

              

              direction = 1;

              keyMaterial[keyLength/4] = 0;

              //keyInst.blockLen = blockLength;

              makeKey(&keyInst, direction, keyLength, keyMaterial);

              //cipherInst.blockLen = blockLength;

              cipherInit (&cipherInst, MODE_ECB, NULL);

              printf("outblock => %x and outblock1 = %x \n",outBlock,outBlock1);

              blockDecrypt(&cipherInst, &keyInst, outBlock, blockLength, outBlock1);

              printf("\n decrypt outBlock is => %x and outBlock1 => %s

\n",outBlock,outBlock1);

            }

          

        }

        fclose(fp);

        return;

        

}