File content as of revision 1:efd619e002fd:

#include "mbed.h"
#include "AES.h"

char message[] = {
    "Hello World!"
};

const char key[32] = {
    0x60, 0x3D, 0xEB, 0x10, 0x15, 0xCA, 0x71, 0xBE,
    0x2B, 0x73, 0xAE, 0xF0, 0x85, 0x7D, 0x77, 0x81,
    0x1F, 0x35, 0x2C, 0x07, 0x3B, 0x61, 0x08, 0xD7,
    0x2D, 0x98, 0x10, 0xA3, 0x09, 0x14, 0xDF, 0xF4
};

const char iv[16] = {
    0x74, 0x11, 0xF0, 0x45, 0xD6, 0xA4, 0x3F, 0x69,
    0x18, 0xC6, 0x75, 0x42, 0xDF, 0x4C, 0xA7, 0x84
};

void printData(const void* data, size_t length)
{
    const char* dataBytes = (const char*)data;
    for (size_t i = 0; i < length; i++) {
        if ((i % 8) == 0)
            printf("\n\t");
        printf("0x%02X, ", dataBytes[i]);
    }
    printf("\n");
}

int main()
{
    AES aes;

    //Print the original message
    printf("Original message: \"%s\"", message);
    printData(message, sizeof(message));

    //Encrypt the message in-place
    aes.setup(key, AES::KEY_256, AES::MODE_CBC, iv);
    aes.encrypt(message, sizeof(message));
    aes.clear();

    //Print the encrypted message
    printf("Encrypted message:");
    printData(message, sizeof(message));

    //Decrypt the message in-place
    aes.setup(key, AES::KEY_256, AES::MODE_CBC, iv);
    aes.decrypt(message, sizeof(message));
    aes.clear();

    //Print the decrypted message
    printf("Decrypted message: \"%s\"", message);
    printData(message, sizeof(message));
}