问题
单项选择题
PGP是一种电子邮件安全方案，它一般采用的散列函数是( )。
A．DSS
B．RSA
C．DES
D．SHA
答案
参考答案：D
解析： 最新的PGP用TDEA和CAST作为对称密码，数字签名采用DSS，散列函数采用的是SHA。
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PGP是一种电子邮件安全方案，它一般采用的散列函数是( )。
A．DSS
B．RSA
C．DES
D．SHA
参考答案：D
解析： 最新的PGP用TDEA和CAST作为对称密码，数字签名采用DSS，散列函数采用的是SHA。
| 35．Applications put computers to pratical business (1) , but below the (2) it’s the heart of an operating system—the kernel that provides the technical wizardry to juggle multiple program, connect to networks and store (3) . A traditional kernal provides all the functions for applications. The kemal (4) memory, I/O devices and parcels out processor time. The kernel also supports security and fault (5) , which is the ablity to recover automatically when parts of the system fail. |
(5)
A．error
B．question
C．tolerance
D．problem