Design of hard disk protection program with the function of preventing start-up from floppy disk
Wang Yi-gang · Jisuanji gongcheng yu sheji · 2006
From the structure of the master boot sector,with respect to the disadvantages of the protection card for the harddisk in itself,each sector's work process of the master boot program for the harddisk is analyzed in detail as well as the structure of the master boot sector,which includes setting registers and stacks,moving code,coding the partition table with XOR,searching boot partition,reading and verifying boot sector.Meanwhile,a new function is added to the master boot program with relative program making use of the char-acteristics of the master boot sector itself,together with the facility and the efficiency of XOR coding.The result of research shows the advantages of XOR coding in security and timeliness.