öƽ , Ư Ǵ Ư Ƿ . Ϻ⺸ ī Űܼ ״ Ī̴. ̴ Ϻ öƽ 밳 ̿ ʷ Ͽ õõ ʰ Ǿ ̶ ȴ. ߱ ںν ڱ Ǿ ġϵ ǰ ִ.
̷ ī ״ δ ǹϴ ٰ ʴ ͵ ִ. о߿ Ӱ ․ ۾, Ϻ ڵ鵵 ؼ Ǽ ָ · Ǵ κ .
ϳϳ ٷ ⼭ ٷ鼭 ǹ̸ ϰ .
öƽ ῡ
Ӷ :
ݴ Ӷ ϱ? װ Ƽ ؼ Ƽ ε, Ƽ̶ ( : ܷü) ȭ εǾ ڷ ϰ ū ڷ ̰, ڿ迡 ־ ̶⺸ٴ ΰ Ӱ ϼŲ ̴. ϴ̳ õ â ̶ Ϳ ũ(ڷ) Ǿ(õ ڹ) , ΰ ڷ ũⰡ ̸ ڰ ԵǴ ȥչ̴. öƽ̶ ̳ ٸ ǰ ִ.
(չ) ( ȥչ) ̴ :
ٸ 2 ̻ ( A B) -A-B-A-B-A-B-簡 A-A-A-B-B-B- ȭа ӷ, AS 簡 Ϸ 66 ̴.
, Ӷ ӵ ٸ ӿ ʴ ִ 2 ̻ ߰ ÷ ̵ ̴. ߰ ƴϱ ִ . ̰ ִ δ PC/AES ִ.
ٸ öƽ Ǵ ϴٸ Ư¡ Ȱϰ Ǹ öƽ ó ũ ǰ ߰ Ÿ ʴ. ΰ Ǻλ ̳ ϴ ̷ 췯 ʴ , پ ߰ڰ Ÿ ?
<۱ڨ 'öƽ̾' - .>
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