C++ code I need decryption ( must loop through the encrypted file and again, xor every byte with a one ) ?? Basically the opposite of if the code below ??

so this is picture below is encrypted part ( it loops through the input file and xor every byte with a one.)

..il AT&T #include "Main.h" int encryptData(char *data, int d 6:08 PM ataLength) asm ( mov ebx, 0 mov ecx, data srt loop: cmp dataLength, ebx jmp end_loop mov al ,byte ptr[ecx] xor al, 1 mov byte ptr[ecx],al jmp srt loop end_loop: return 0