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The basic principle of this WPA2 "key reloading attack" is to make use of the logic defects in the WPA protocol layer to retransmit message 3 in the handshake process many times, thus causing the replay of random numbers and replay counters, providing conditions for attackers to utilize.齐王。Some timing operations on data no longer rely on external programs, but directly use the functions provided by the database itself.本剧基于记者Justin Fenton的同名书籍创作，《火线》制片人David Simon和George Pelecanos共同打造。The full name of UDP protocol is user datagram protocol. It is used to process data packets like TCP protocol in the network and is a connectionless protocol. In the OSI model, the fourth layer, the transport layer, is the next layer above the IP protocol. UDP has the disadvantages of not providing packet grouping, assembling and sorting packets, that is, when the message is sent, it is impossible to know whether it arrives safely and completely.Singleton mode: It solves the problem of the number of instantiated objects, such as factories and object pools in abstract factories. Except Singleton, other creative modes solve the coupling relationship brought by new.