ppp1115 wrote:
事情沒有絕對的......(恕刪)
在這裡我要推Acronis Trueimage裡面附加的cleanup utilities裡面有銷毀檔案的工具, 用這個東西砍檔,
用fast選項以外的格式來砍檔, 硬碟送到國外去資料也不一定找的到
Fast 1 Logical zeros (0x00 numbers) to all sectors to shred.
United States Department of Defense 5220.22-M 4 1st pass – randomly selected symbols to each byte of each sector, 2 – complementary to written during the 1st pass; 3 – random symbols again; 4 – writing verification.
United States: NAVSO P-5239-26 (RLL) 4 1st pass – 0x01 to all sectors, 2 – 0x27FFFFFF, 3 – random symbol sequences, 4 – verification.
United States: NAVSO P-5239-26 (MFM) 4 1st pass – 0x01 to all sectors, 2 – 0x7FFFFFFF, 3 – random symbol sequences, 4 – verification.
German: VSITR 7 1st – 6th – alternate sequences of: 0x00 and 0xFF; 7th – 0xAA; i.e. 0x00, 0xFF, 0x00, 0xFF, 0x00, 0xFF, 0xAA.
Russian: GOST P50739-95 1 Logical zeros (0x00 numbers) to each byte of each sector for 6th to 4th security level systems. Randomly selected symbols (numbers) to each byte of each sector for 3rd to 1st security level systems.
Peter Gutmann 35 Peter Gutmann’s method is very sophisticated. It’s based on his theory of hard disk information wiping (see http://www.cs.auckland.ac.nz/~pgut001/pubs/secure_del.html).
Bruce Schneier 7 Bruce Schneier offers a seven-pass overwriting method in his Applied Cryptography book. 1st pass – 0xFF, 2nd pass – 0x00, and then five times with a cryptographically secure pseudo-random sequence.
比你的方法好用多了.
