C中的简单加密实现

#include<stdio.h>

int main() {
    char message[] = "Hello, world!";
    char key = 0xAA;
    char encrypted_message[sizeof(message)];
    int i;

    for (i = 0; i< sizeof(message); i++) {
        encrypted_message[i] = message[i] ^ key;
    }

    printf("Encrypted message: ");
    for (i = 0; i< sizeof(message); i++) {
        printf("%02X ", encrypted_message[i]);
    }
    printf("\n");

    return 0;
}