Encryption has been in use for a long time. The ancient Greeks and Romans used early encryption techniques to secure their communications, and governments and individuals have used encryption ever since. Many early types of encryption are still in use in some form today, including steganography, restrictive algorithms, and proprietary encryption schemes. These older encryption techniques often suffer from numerous design and implementation flaws, and, when companies integrate them into networking products, security ultimately suffers.

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Securing Your WLAN With Encryption