Which of the following statements are true？ （） A:  RC4 is a stream cipher B:  Stream ciphers require padding C:  AES is a block cipher D:  DES and 3DES are stream ciphers E:  AES is a stream cipher F:  AES， DES， and 3DES can be used as HMAC algorithms

【判断题】使用set authentication password cipher password命令可以配置密文密码

​分组密码工作模式主要有EBC（Electronic Code Book，电子密码本）、CBC（Cipher Block Chaining，密文链接）、CFB（Cipher Block FeedBack，密文反馈）、OFB（Output FeedBack，输出反馈）与CTR（Counter，计数器）等模式‏

中国大学MOOC: 用列置换加密的方法，采用关键词“cipher”对以下明文进行加密：glad to see you

在注册表安全的设置中在命令行中输入(<br/>)命令打开注册表编辑器 A: REGEDIT B: CIPHER C: ATTRIB D: PRINT

用列置换加密的方法，采用关键词“cipher”对以下明文进行加密：glad to see you A: gstodyleaeou B: gtdlaoesoyeu C: gltdaseooyeu D: ldaogtseoyeu

Wi-Fi Protected Access was an interim step on the way to the more secure WPA2. What was added in WPA2 to make it more secure？（） A: PEAP B: EAP-FAST C: AES encryption D: Rivest Cipher 4 encryptio

Wi-Fi Protected Access was an interim step on the way to the more secure WPA2. What was added in WPA2 to make it more secure？（） A:  PEAP B:  EAP-FAST C:  AES encryption D:  Rivest Cipher 4 encryption

system-view [Huawei] user-interface console 0 [Huawei-ui-consoleO] user privilege level 15 [Huawei-ui-consoleO] authentication-mode password [Huawei-ui-consoleO] set authentication password cipher huawei2012 [Huawei-ui-consoleO] quit 关于上述配置命令说法错误的是（ ）

关于上述配置命令说法错误的是（）。 <Huawei>system-View [Huawei]user-interface console 0 [Huawei-ui-console0]user privilege level 15 [Huawei-ui-console0]authentication-mode password [Huawei-ui-console0]set authentication password cipher huawei2012 [Huawei-ui-console0]quit