CCMP (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol) is an IEEE 802.11i encryption protocol, created to replace WEP, an earlier, insecure protocol. CCMP uses the Advanced Encryption Standard (AES) algorithm. In the 802.11i standard, unlike WPA, key management and message integrity is handled by a single component CCMP built around AES. This article does not cite its references or sources. ... IEEE 802. ... A cryptographic protocol is an abstract or concrete protocol that performs a security-related function and applies cryptographic methods. ... Wired Equivalent Privacy (WEP) is part of the IEEE 802. ... General Designer(s) Vincent Rijmen and Joan Daemen First published 1998 Derived from Square (cipher) Cipher(s) based on this design Crypton (cypher), Anubis (cipher), GRAND CRU Algorithm detail Block size(s) 128 bits note Key size(s) 128, 192 or 256 bits note Structure Substitution-permutation network Number of... General Designer(s) Vincent Rijmen and Joan Daemen First published 1998 Derived from Square (cipher) Cipher(s) based on this design Crypton (cypher), Anubis (cipher), GRAND CRU Algorithm detail Block size(s) 128 bits note Key size(s) 128, 192 or 256 bits note Structure Substitution-permutation network Number of... Wi-Fi Protected Access (WPA and WPA2) is a class of systems to secure wireless (Wi-Fi) computer networks. ... In cryptography, key management includes all of the provisions made in a cryptosystem design, in cryptographic protocols in that design, in user procedures, and so on, which are related to generation, exchange, storage, safeguarding, use, vetting, and replacement of keys. ... In telecommunication, the term data integrity has the following meanings: The condition that exists when data is unchanged from its source and has not been accidentally or maliciously modified, altered, or destroyed. ... General Designer(s) Vincent Rijmen and Joan Daemen First published 1998 Derived from Square (cipher) Cipher(s) based on this design Crypton (cypher), Anubis (cipher), GRAND CRU Algorithm detail Block size(s) 128 bits note Key size(s) 128, 192 or 256 bits note Structure Substitution-permutation network Number of...

The CCMP packet

The process of encrypting data is done through encapsulation. The encapsulation process is completed through encryption and the packet headers being wrapped for transmission. The CCMP encapsulations attempt to ensure the confidentiality and integrity of the communications channel, and to prevent replay attacks. Integrity is assured by calculating a MIC (Message Integrity Code) sum to check if a message is altered, protecting data from reply attacks. In this case CCMP uses another algorithm from that used by TKIP. ...