TAILIEUCHUNG - Chapter 5 – Public Key Infrastructure

So Symmetric key (private key) encryption is fast and nice, but has what MAJOR problem? Symmetric Key encryption, also doesn’t provide integrity concerns ;( Asymmetric Key/public key encryption can be combined with Symmetric Key encryption to solve BOTH problems, but Symmetric Key encryption has what problem of it’s own? | Security+ All-In-One Edition Chapter 5 – Public Key Infrastructure Brian E. Brzezicki Public Key Infrastructure So Symmetric key (private key) encryption is fast and nice, but has what MAJOR problem? Symmetric Key encryption, also doesn’t provide integrity concerns ;( Asymmetric Key/public key encryption can be combined with Symmetric Key encryption to solve BOTH problems, but Symmetric Key encryption has what problem of it’s own? MiM (normal exchange) MiM Attack! (part 1) MiM Attack! Part 2 Public Key Infrastructure Wouldn’t it be nice if some one we could distribute public keys AND be assured that the public key we received was the actual public key of the person we expect to talk to? PKI to the rescue! PKI (109) PKIs are generally concerned with ensuring and managing identity trust, specifically using “digital certificates”. Provides all the components necessary for users to be able to communicate securely in a managed method. Includes hardware, software, policies, services, .

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