#include<stdio.h>
#include<stdint.h>

void encrypt_block(void* data, uint8_t key){
	uint8_t *typed_data = (uint8_t*)data;
	for(int i = 0; i < 4; i++){
		typed_data[i] += key;
	}
}

// It'll encrypted 
void encrypt_data(void* data, uint8_t key, size_t datasize){
	size_t offset = 0;
	while(offset < datasize){
		encrypt_block(data + offset, key);
		offset += 4;
	}
}

int main(){
	/*
	int plaintext;
	printf("Enter a number:  ");
	scanf("%d", &plaintext);
	*/
	
	char plaintext[5];
	char* pplaintext = plaintext;
	printf("Enter a string:  ");
	scanf("%s", pplaintext);

	uint32_t entry; // same thing as unsigned char, 1 byte
	printf("Enter the key:  ");
	scanf("%d", &entry);
	uint8_t key = entry;

	//printf("Encoding %d(%x) with key %d\n", plaintext, plaintext, key);
	printf("Encoding:  %s(%x)\n", plaintext, *((uint32_t*)plaintext));

	encrypt_data(plaintext, key, 4);

	printf("Encrypted:  %s(%x)\n", plaintext, *((uint32_t*)plaintext));

	
	
	return 0;
}