單項(xiàng)選擇題

Which of the following encryption methods is known to be unbreakable?下面哪一個(gè)加密算法被認(rèn)為是不可破解的？（）

A.Elliptic Curve Cryptography.橢圓曲線加密
B.One-timepads.一次性隨機(jī)密鑰
C.Symmetric ciphers.對(duì)稱密鑰
D.DES codebooks.DES密碼本

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單項(xiàng)選擇題

The DES algorithm is an example of what type of cryptography?DES算法是下面哪一個(gè)加密算法的一個(gè)樣例？（）

A.Secre tKey.秘密密鑰
B.Asymmetric Key.非對(duì)稱密鑰
C.Two-key雙密鑰
D.Public Key.公鑰

單項(xiàng)選擇題

Kerberos depends upon what encryption method?Kerberos依賴于那種加密算法（）

A.Blowfish cryptography.Blowfish加密
B.PublicKey cryptography.公鑰加密
C.ElGamal cryptography.ElGamal加密
D.SecretKey cryptography.秘密密鑰加密