code improvement

[Cipher_code.git] / OneRoundIoT / openssl / openssl_evp.c

diff --git a/OneRoundIoT/openssl/openssl_evp.c b/OneRoundIoT/openssl/openssl_evp.c
index 55ba25ef467e10820f98649421af2716598c9fa4..6860932ba85a2e8c9d5f7b3e64c1593a2980422c 100644 (file)
--- a/OneRoundIoT/openssl/openssl_evp.c
+++ b/OneRoundIoT/openssl/openssl_evp.c
@@ -57,9 +57,14 @@ 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
+    for(int i=0;i<nb_test;i++)
+  {  
+
   if(ctr) {
     if(1 != EVP_EncryptInit_ex(ctx, EVP_aes_128_ctr(), NULL, key, iv))
       handleErrors();
@@ -68,6 +73,10 @@ 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);
 
@@ -81,15 +90,12 @@ int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key,
   double t=0;
   t=TimeStart();
 */
-  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);
@@ -102,7 +108,7 @@ int encrypt(unsigned char *plaintext, int plaintext_len, unsigned char *key,
    */
   if(1 != EVP_EncryptFinal_ex(ctx, ciphertext + len, &len)) handleErrors();
   ciphertext_len += len;
-
+  }
   /* Clean up */
   EVP_CIPHER_CTX_free(ctx);
 
@@ -129,6 +135,9 @@ int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key,
 
   //256
 
+  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))
@@ -146,12 +155,12 @@ int decrypt(unsigned char *ciphertext, int ciphertext_len, unsigned char *key,
   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);
@@ -163,7 +172,7 @@ 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 */
@@ -226,7 +235,8 @@ 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++) {
@@ -237,7 +247,7 @@ 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];
@@ -254,10 +264,10 @@ 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;
 
@@ -268,7 +278,8 @@ int main (int argc, char** argv)
 */
 
 
-  double time=0;
+  double time_encrypt=0;
+  double time_decrypt=0;
   double t=TimeStart();
 
   
@@ -283,9 +294,10 @@ int main (int argc, char** argv)
                              ciphertext, ctr, i );
   }
 
- time+=TimeStop(t);
+ time_encrypt+=TimeStop(t);
 
- printf("Time encrypt %f\n",time);
+// printf("Time encrypt %f\n",time);
+ printf("%f\t",(double)imsize*nb_test/time_encrypt);
 
  if(lena) {
    for(int i=0;i<oneD;i++) {
@@ -297,7 +309,6 @@ int main (int argc, char** argv)
  }
  
   
-  time=0;
   t=0;
   t=TimeStart();
 
@@ -308,9 +319,10 @@ int main (int argc, char** argv)
                                decryptedtext,ctr, i);
   }
 
- time+=TimeStop(t);
+ time_decrypt+=TimeStop(t);
 
- printf("Time decrypt %f\n",time);
+ //printf("Time decrypt %f\n",time);
+ printf("%f\t",(double)imsize*nb_test/time_decrypt);
 
  if(lena) {
    for(int i=0;i<oneD;i++) {