Hi I was using you library. Great work!!

But i notice some strange with the CBC even when the IV param is mark as "IN" in the prototype declarations

_AES_IN UCHAR *iv

I notice that the IV value is changed after call that function.

If we dont save the IV before call the functions we are going to lose our data.

Y made this PoC to show the bug:

`int main() {
unsigned char *data,*key,*iv,*enc;

data =(unsigned char*) malloc(32);
iv =  (unsigned char*) malloc(16);
key = (unsigned char*) malloc(32);
enc = (unsigned char*) malloc(32);

memset(data,'B',32);	//Idont care this now
memset(key,0xF0,32);	//Idont care this now

memset(iv,'A',16);		//I know need to be random, but just for this example

printf("Current data: %s\n",data);
printf("Current IV: %s\n",iv);
intel_AES_enc256_CBC(data,enc,key,2, iv);
printf("Current IV: %s\n",iv);		//Here BUG the current Value of IV was changed
intel_AES_dec256_CBC(enc,data,key,2, iv);
printf("Dec: %s\n",data);

}`

Greetings, I'm a game developer looking to replace the small but slow AES API of my game with something much faster. The current API takes about 3 seconds for 576 KB of data on my PC (with an i5-13500). I stumbled upon your API which looked very straightforward to use so I'm curious, how well does your API perform particularly in comparison with the one I currently use?
Kind regards.