X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/Cipher_code.git/blobdiff_plain/656b608a022c716868f21e2aa84da15fb6aa4e86..a66bfebaa250175e91299fe0143e201b6bcfbe43:/OneRoundIoT/openssl/openssl_evp.c

diff --git a/OneRoundIoT/openssl/openssl_evp.c b/OneRoundIoT/openssl/openssl_evp.c
index be8eb74..4e99565 100644
--- a/OneRoundIoT/openssl/openssl_evp.c
+++ b/OneRoundIoT/openssl/openssl_evp.c
@@ -57,7 +57,9 @@ int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key,
    * In this example we are using 256 bit AES (i.e. a 256 bit key). The
    * IV size for *most* modes is the same as the block size. For AES this
    * is 128 bits */
-
+  static double  time=0;
+  double t=0;
+  t=TimeStart();
   //256
   //avant ecb
   if(ctr) {
@@ -68,6 +70,10 @@ int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key,
       if(1 != EVP_EncryptInit_ex(ctx, EVP_aes_128_cbc(), NULL, key, iv))
 	handleErrors();
 
+  time+=TimeStop(t);
+  printf("Time init %f\n",time);
+
+  
 //  int cipherBlockSize = EVP_CIPHER_CTX_block_size(ctx);  
 //  printf("INFO(evp_encrypt): block size: %d\n", cipherBlockSize);
 
@@ -76,25 +82,24 @@ int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key,
    * EVP_EncryptUpdate can be called multiple times if necessary
    */
 
-
+/*
   static double  time=0;
   double t=0;
   t=TimeStart();
-
-//  for(int i=0;i<nb_test;i++)
+*/
+  for(int i=0;i<nb_test;i++)
   {  
   
-    
-    if(1 != EVP_EncryptUpdate(ctx, ciphertext, &len, plaintext, plaintext_len))
+      if(1 != EVP_EncryptUpdate(ctx, ciphertext, &len, plaintext, plaintext_len))
       handleErrors();
     ciphertext_len = len;
     
   }
-  time+=TimeStop(t);
-  if(index==nb_test-1)
-    printf("Time encrypt %f\n",time);
+/*  time+=TimeStop(t);
+  // if(index==nb_test-1)
+  printf("Time encrypt %f\n",time);
     
-
+*/
 
   
   /* Finalise the encryption. Further ciphertext bytes may be written at
@@ -142,20 +147,22 @@ int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key,
    * EVP_DecryptUpdate can be called multiple times if necessary
    */
   
-  static double time=0;
+/*  static double time=0;
   double t=0;
   t=TimeStart();
-
-//  for(int i=0;i<nb_test;i++)
+*/
+  for(int i=0;i<nb_test;i++)
   {  
+    plaintext_len = 0;
     if(1 != EVP_DecryptUpdate(ctx, plaintext, &len, ciphertext, ciphertext_len))
       handleErrors();
     plaintext_len = len;
   }
-
-  time+=TimeStop(t);
-  if(index==nb_test-1)
+/*  time+=TimeStop(t);
+//  if(index==nb_test-1)
     printf("Time decrypt %f\n",time);
+*/
+
   
   /* Finalise the decryption. Further plaintext bytes may be written at
    * this stage.
@@ -163,6 +170,8 @@ int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key,
   if(1 != EVP_DecryptFinal_ex(ctx, plaintext + len, &len)) handleErrors();
   plaintext_len += len;
 
+  
+  
   /* Clean up */
   EVP_CIPHER_CTX_free(ctx);
 
@@ -223,7 +232,8 @@ int main (int argc, char** argv)
 //  load_RGB_pixmap("No_ecb_mode_picture.ppm", &width, &height, &data_R, &data_G, &data_B);
   }
   else {
-    width=height=size_buf;
+    width=size_buf;
+    height=size_buf;
     imsize=width*height;
     buffer=malloc(imsize*sizeof(uchar));
     for(int i=0;i<imsize;i++) {
@@ -234,7 +244,7 @@ int main (int argc, char** argv)
 
 
   int oneD=width*height;
-  uchar *plaintext = malloc(imsize);
+  uchar *plaintext = malloc(imsize+1000);   //add that for cbc
   if(lena) {
     for(int i=0;i<oneD;i++) {
       plaintext[i]=data_R[i];
@@ -251,10 +261,10 @@ int main (int argc, char** argv)
 
   
 
-  uchar *ciphertext = malloc(imsize);
+  uchar *ciphertext = malloc(imsize+1000); //add that for cbc
 
   /* Buffer for the decrypted text */
-  uchar *decryptedtext = malloc(imsize);
+  uchar *decryptedtext = malloc(imsize+1000); //add that for cbc
 
   int decryptedtext_len, ciphertext_len;
 
@@ -274,7 +284,7 @@ int main (int argc, char** argv)
 
   int i;
 
-  for(i=0;i<nb_test;i++)
+//  for(i=0;i<nb_test;i++)
   {  
     ciphertext_len = encrypt (plaintext, imsize, key, iv,
 			      ciphertext, ctr, i );
@@ -298,7 +308,7 @@ int main (int argc, char** argv)
   t=0;
   t=TimeStart();
 
-  for(int i=0;i<nb_test;i++)
+  //for(int i=0;i<nb_test;i++)
   {  
     /* Decrypt the ciphertext */
     decryptedtext_len = decrypt(ciphertext, ciphertext_len, key, iv,
@@ -325,7 +335,7 @@ int main (int argc, char** argv)
        equal=0;
      }
    }
-   printf("RESULT CORRECT: %d\n",equal);
+//   printf("RESULT CORRECT: %d\n",equal);
  }