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Set-top boxes based Safety Research and Implementation of uCLinux the DHCP

Author: XuHaiZuo
Tutor: WangXuBen
School: Chengdu University of Technology
Course: Signal and Information Processing
Keywords: MD5 digest HMAC Set-top boxes DHCP protocol
CLC: TN948.5
Type: Master's thesis
Year: 2004
Downloads: 171
Quote: 4
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Abstract


The situation of the rapid development of the information age , a combination of computer technology , networking and communications technology and the widespread application of Internet , 3C (Computer, Communication, Consumer) one trend has been formed , the inevitable result is the center of the computer industry transferred to products from computing products , and thus the concept of information appliances . , Due to the constantly increasing functionality required in the field of application development of information appliances , embedded systems also will become the new darling of the software industry . Inside the computer itself, the field of miniaturization and specialization has become the new trend of development , also need the support of embedded systems . Information appliances in the network environment , applications are the same like ordinary PC users faced with security annoyances , which requires us to some security measures adopted in the embedded system . This thesis is discussed in detail based on the concept of information appliances author completed a master's degree thesis work during digital STB ( SET TOP BOX STB ) DHCP communication protocol based on embedded operating system uCLinux security issues . First demonstrated trends of the digital set-top boxes and related technical background it shipped to the entire network environment uClinux operating system in a set-top box , and then discusses the theoretical basis , the final focus are discussed in detail in the set-top box in the uClinux operating system DHCP security communication principles and implementations. Three security program to achieve : first : agreed cleartext password authentication set-top boxes and the legal status of the DHCP server The MD5 authentication information legitimacy : second : the use of the the HMAC algorithm validation set-top box with the server identity information legitimacy ; three types: IPSEC verify the set-top box with a DHCP server identity and information legitimacy . Each approach are packet sequence number only method or sliding window method replay attacks . The complexity of the three scenarios in turn increase safety increased in turn , depends largely on the complexity of the algorithm and architecture structures .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > TV > TV and television equipment > Television transmitter and receiver equipment
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