X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/Cipher_code.git/blobdiff_plain/8e7ce26ffa675a1249751a2a2e5d3b5c1cdc0553..696a03b79ed936131f6e76a73aef69a46a704582:/OneRoundIoT/openssl/openssl_evp.c?ds=sidebyside

diff --git a/OneRoundIoT/openssl/openssl_evp.c b/OneRoundIoT/openssl/openssl_evp.c
index bd4243a..4e99565 100644
--- a/OneRoundIoT/openssl/openssl_evp.c
+++ b/OneRoundIoT/openssl/openssl_evp.c
@@ -41,7 +41,7 @@ void handleErrors(void)
 
 
 int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key,
-	    unsigned char *iv, unsigned char *ciphertext, int ctr)
+	    unsigned char *iv, unsigned char *ciphertext, int ctr, int index)
 {
   EVP_CIPHER_CTX *ctx;
 
@@ -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);
 
@@ -76,14 +82,24 @@ int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key,
    * EVP_EncryptUpdate can be called multiple times if necessary
    */
 
-  if(1 != EVP_EncryptUpdate(ctx, ciphertext, &len, plaintext, plaintext_len))
-    handleErrors();
-  ciphertext_len = len;
-
+/*
+  static double  time=0;
+  double t=0;
+  t=TimeStart();
+*/
+  for(int i=0;i<nb_test;i++)
+  {  
   
-
-
-
+      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);
+    
+*/
 
   
   /* Finalise the encryption. Further ciphertext bytes may be written at
@@ -99,7 +115,7 @@ int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key,
 }
 
 int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key,
-	    unsigned char *iv, unsigned char *plaintext, int ctr)
+	    unsigned char *iv, unsigned char *plaintext, int ctr, int index)
 {
   EVP_CIPHER_CTX *ctx;
 
@@ -131,17 +147,31 @@ int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key,
    * EVP_DecryptUpdate can be called multiple times if necessary
    */
   
- 
-  if(1 != EVP_DecryptUpdate(ctx, plaintext, &len, ciphertext, ciphertext_len))
-    handleErrors();
-  plaintext_len = len;
+/*  static double time=0;
+  double t=0;
+  t=TimeStart();
+*/
+  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)
+    printf("Time decrypt %f\n",time);
+*/
 
+  
   /* Finalise the decryption. Further plaintext bytes may be written at
    * this stage.
    */
   if(1 != EVP_DecryptFinal_ex(ctx, plaintext + len, &len)) handleErrors();
   plaintext_len += len;
 
+  
+  
   /* Clean up */
   EVP_CIPHER_CTX_free(ctx);
 
@@ -166,11 +196,11 @@ int main (int argc, char** argv)
     if(strncmp(argv[i],"lena",4)==0) lena = atoi(&(argv[i][4]));          //Use Lena or buffer
   }
 
-  printf("nb times %d\n",nb_test);
+/*  printf("nb times %d\n",nb_test);
   printf("ctr %d\n",ctr);
   printf("lena %d\n",lena);
   printf("size_buf %d\n",size_buf);
-
+*/
 
 
 
@@ -202,7 +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++) {
@@ -213,7 +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];
@@ -230,10 +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;
 
@@ -242,7 +273,9 @@ int main (int argc, char** argv)
   OpenSSL_add_all_algorithms();
   OPENSSL_config(NULL);
 */
-   double time=0;
+
+
+  double time=0;
   double t=TimeStart();
 
   
@@ -251,10 +284,10 @@ 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);
+			      ciphertext, ctr, i );
   }
 
  time+=TimeStop(t);
@@ -275,11 +308,11 @@ 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,
-				decryptedtext,ctr);
+				decryptedtext,ctr, i);
   }
 
  time+=TimeStop(t);
@@ -302,7 +335,7 @@ int main (int argc, char** argv)
        equal=0;
      }
    }
-   printf("RESULT CORRECT: %d\n",equal);
+//   printf("RESULT CORRECT: %d\n",equal);
  }