TAILIEUCHUNG - SecurityProtocols

In the last lecture we looked at some high-level descriptions of key distribution and agreement schemes. These protocols cannot be used as they were stated. In implementation of the actual protocol, there are many situations one should be careful of. In this lecture, we will look at some common protocol failures that arise when trying to implement security protocols We will then look at some specific examples of security protocols | Security Protocols: They’re so NOT Easy! Lecture Motivation In the last lecture we looked at some high-level descriptions of key distribution and agreement schemes. These protocols cannot be used as they were stated. In implementation of the actual protocol, there are many situations one should be careful of. In this lecture, we will look at some common protocol failures that arise when trying to implement security protocols We will then look at some specific examples of security protocols Lecture Outline Some stories from the Dark Side Design Principles for building security protocols Key tools for building robust security protocols Naming Encryption Signing Timestamps and nonces Examples as we go Wide-Mouthed Frog Denning-Sacco Woo-Lam Needham-Schroeder We’ll end with a look at Kerberos Tales from the Dark Side of Security Prepayment in Electricity Meter Systems: Present a (purchased) digital token to a power meter. Digital token would convey an ID so it could not be duplicated .

• An ninh - Bảo mật
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