澳洲詹姆斯库克大学论文代写:系统攻击

澳洲詹姆斯库克大学论文代写:系统攻击

在收集未加密的明文、密文之间的交换和BTS女士和相应的帧数的偷听者很容易检索一块与兰德如上描述。它是真实的,当用户发送短信与相应的密码密钥加密KC。但是在这种情况下,一个偷听者能够解密消息发送/空气界面参数的帮助下,他已经收集了[2]。现在,攻击者可以修改信息。再次MAC值的系统不提供任何条款或散列函数用户为了确保消息不回火中间任何入侵者。因此变更或修改的消息仍是现有系统的威胁。

澳洲詹姆斯库克大学论文代写:系统攻击

After collecting unencrypted plain text, cipher text exchange between MS and BTS and the corresponding frame number it is easy for an eavesdropper to retrieve a BLOCK associated with RAND as describe above. It is genuine that whenever the user sends SMS it is encrypted with corresponding cipher key KC. However in this case an eavesdropper is able to decrypt the message sent over air interface with the help of parameter that he had collected [2]. Now by then an attacker can modify the message. Again the system does not offer any provision for MAC value or hash function for user in order to be sure that the message is not tempered in the middle by any intruder. Hence alteration or modification of message is still the existing threat for system.

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