单项选择题
从认证中心CA获取用户B的数字证书,该证书用
(53)
做数字签名;从用户B的数字证书中可以获得
(54)
。
A.CA的公钥
B.CA的私钥
C.B的公钥
D.B的私钥
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单项选择题
A.3 B.12 C.375 D.100
A.3
B.12
C.375
D.100
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单项选择题
A. ISO B. ITU C. IEEE D. CCITT
A socket is composed of two addresses:
(74)
.Heterogeneous network environments consist of computer systems from
(75)
vendors that run different operating systems and communication protocols.
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