X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/Cipher_code.git/blobdiff_plain/8e7ce26ffa675a1249751a2a2e5d3b5c1cdc0553..fd03c6c18761aedcf1616b4dadc316fbb07ebde3:/OneRoundIoT/openssl/openssl_evp.c?ds=sidebyside

diff --git a/OneRoundIoT/openssl/openssl_evp.c b/OneRoundIoT/openssl/openssl_evp.c
index bd4243a..0a4b949 100644
--- a/OneRoundIoT/openssl/openssl_evp.c
+++ b/OneRoundIoT/openssl/openssl_evp.c
@@ -16,6 +16,9 @@ typedef unsigned char   uchar;
 int nb_test=1;
 int ctr=0;
 
+double time_encrypt=0;
+double time_decrypt=0;
+
 double TimeStart()
 {
   struct timeval tstart;
@@ -41,7 +44,7 @@ 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;
 
@@ -49,6 +52,9 @@ int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key,
 
   int ciphertext_len;
 
+
+
+  
   /* Create and initialise the context */
   if(!(ctx = EVP_CIPHER_CTX_new())) handleErrors();
 
@@ -58,40 +64,46 @@ int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key,
    * IV size for *most* modes is the same as the block size. For AES this
    * is 128 bits */
 
+  double t=TimeStart();
+  
   //256
   //avant ecb
-  if(ctr) {
-    if(1 != EVP_EncryptInit_ex(ctx, EVP_aes_128_ctr(), NULL, key, iv))
-      handleErrors();
-  }
-  else
+  for(int i=0;i<nb_test;i++)
+  {  
+    
+    if(ctr) {
+      if(1 != EVP_EncryptInit_ex(ctx, EVP_aes_128_ctr(), NULL, key, iv))
+	handleErrors();
+    }
+    else
       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);
-
+    
+    
+    /* Provide the message to be encrypted, and obtain the encrypted output.
+     * EVP_EncryptUpdate can be called multiple times if necessary
+     */
+    
+    if(1 != EVP_EncryptUpdate(ctx, ciphertext, &len, plaintext, plaintext_len))
+      handleErrors();
+    ciphertext_len = len;
+    
+    /* Finalise the encryption. Further ciphertext bytes may be written at
+     * this stage.
+     */
+    if(1 != EVP_EncryptFinal_ex(ctx, ciphertext + len, &len)) handleErrors();
+    ciphertext_len += len;
+  }
   
-  /* Provide the message to be encrypted, and obtain the encrypted output.
-   * EVP_EncryptUpdate can be called multiple times if necessary
-   */
-
-  if(1 != EVP_EncryptUpdate(ctx, ciphertext, &len, plaintext, plaintext_len))
-    handleErrors();
-  ciphertext_len = len;
-
+  time_encrypt+=TimeStop(t);
   
-
-
-
-
-  
-  /* Finalise the encryption. Further ciphertext bytes may be written at
-   * this stage.
-   */
-  if(1 != EVP_EncryptFinal_ex(ctx, ciphertext + len, &len)) handleErrors();
-  ciphertext_len += len;
-
   /* Clean up */
   EVP_CIPHER_CTX_free(ctx);
 
@@ -99,7 +111,7 @@ 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;
 
@@ -118,6 +130,11 @@ int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key,
 
   //256
 
+  double t=TimeStart();
+  
+  for(int i=0;i<nb_test;i++)
+  {  
+  
   //avant => ecb
   if(ctr) {
     if(1 != EVP_DecryptInit_ex(ctx, EVP_aes_128_ctr(), NULL, key, iv))
@@ -131,17 +148,32 @@ 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();
+*/
+
+    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;
+  }
 
+
+  time_decrypt+=TimeStop(t);
+  
   /* Clean up */
   EVP_CIPHER_CTX_free(ctx);
 
@@ -166,11 +198,11 @@ 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 +234,8 @@ 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 +246,7 @@ 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 +263,10 @@ 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;
 
@@ -242,8 +275,10 @@ int main (int argc, char** argv)
   OpenSSL_add_all_algorithms();
   OPENSSL_config(NULL);
 */
-   double time=0;
-  double t=TimeStart();
+
+
+
+
 
   
   /* Encrypt the plaintext */
@@ -251,15 +286,16 @@ 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);
 
- printf("Time encrypt %f\n",time);
+
+// printf("Time encrypt %f\n",time);
+ printf("%e\t",(double)imsize*nb_test/time_encrypt);
 
  if(lena) {
    for(int i=0;i<oneD;i++) {
@@ -271,20 +307,15 @@ int main (int argc, char** argv)
  }
  
   
-  time=0;
-  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);
-
- printf("Time decrypt %f\n",time);
+ //printf("Time decrypt %f\n",time);
+ printf("%e\t",(double)imsize*nb_test/time_decrypt);
 
  if(lena) {
    for(int i=0;i<oneD;i++) {
@@ -302,7 +333,7 @@ int main (int argc, char** argv)
        equal=0;
      }
    }
-   printf("RESULT CORRECT: %d\n",equal);
+//   printf("RESULT CORRECT: %d\n",equal);
  }