Subversion Repositories avs_aes

#include <stdio.h>

#include <string.h>

#include <avs_aes.h>

#include <avs_aes_driver.h>

#define SDRAM_ADDR     0x08000000

int main(){

        volatile unsigned int* aesctrl       = (unsigned int *)AESCTRLWD;

        volatile unsigned int* resultport    = (unsigned int *)RESULT_ADDR;

        volatile unsigned int* dataport      = (unsigned int *)DATA_ADDR;

        volatile unsigned int* keyport           = (unsigned int *)KEY_ADDR;

        avs_aes_handle context;

    //init pointers

    volatile int* wptr = (int*)SDRAM_ADDR;

    volatile int* rptr = (int*)SDRAM_ADDR;

        int i=0;

    unsigned int result[4];

        unsigned int Userkey[8] = {

                0x11111111,0x22222222,0x33333333,0x44444444,

                0x55555555,0x66666666,0x77777777,0x88888888};

        unsigned int Payload[4] = {

                0xAA555555,0xBB666666,0xCC777777,0xDD888888};

// Start MEMTEST   

    printf("Hello from Nios II!\n");

    // Fill the memory 

    printf("Filling Memory at %p \n",wptr);

    i=42;

    while(i< 4){

        printf("| %d -> %X |\n",i, wptr);

        *(wptr++)=Userkey[i++];

    }

    i=0;

    printf("\n I: %d Reading Memory from %X \n",i,rptr);

    while(i< 4){

        printf("MEM: %X > %X \n",rptr,*rptr);

        rptr++;

        i++;

    }

// START AES-Operations

        printf("AES-Test\n");

        avs_aes_init(&context);

        avs_aes_setKey(&context,&Userkey);

        avs_aes_setPayload(&context,&Payload);

        avs_aes_encrypt(&context);

    while(avs_aes_isBusy(&context)){

        printf("not ready\n");

    }

    printf("receiving 729cd44f 32a48d85 b8188185 c579ae49\n");

    memcpy(result,context.result,4*sizeof(unsigned int));

    for(i=0; i<4 ; i++){

        printf("received 0x%X \n",result[i]);

    }

// Decrypt same payload -  

    avs_aes_decrypt(&context);

        while(avs_aes_isBusy(&context)){

        printf("not ready\n");

    }

    printf("receiving 9c7076af ac2e5716 6681d3ac 014f64c0 \n");

    memcpy(result,context.result,4*sizeof(unsigned int));

    for(i=0; i<4 ; i++){

        printf("received 0x%X \n",result[i]);

    }

// Change payload ...

        Payload[3] = 0x11111111;

        Payload[2] = 0xAAAAAAAA;

        Payload[1] = 0xCCCCCCCC;

        Payload[0] = 0x00000000;

        //new encryption

        avs_aes_setPayload(&context,&Payload);

        avs_aes_encrypt(&context);

        while(avs_aes_isBusy(&context)){

        printf("not ready\n");

    }

        memcpy(result,context.result,4*sizeof(unsigned int));

    for(i=0; i<4 ; i++){

        printf("received 0x%X \n",result[i]);

    }

        //new decryption

    avs_aes_decrypt(&context);

        while(avs_aes_isBusy(&context)){

        printf("not ready\n");

    }

    memcpy(result,context.result,4*sizeof(unsigned int));

    for(i=0; i<4 ; i++){

        printf("received 0x%X \n",result[i]);

    }

        printf("Done \n");

    return 0;

}