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US Government retires ‘clipper chip’ used in NSA surveillance

Never heard of FIPS-185? Perhaps you know it as the Escrowed Encryption Standard (EES). Its best-known implementation was a chipset known as the Clipper Chip. The Clipper Chip???and the lesser known implementation, Capstone???were developed by the U.S. National Security Agency (NSA) to be installed in communications devices, for the purpose of protecting private communications, but which also provided “back door” access to law enforcement agencies to conduct electronic surveillance, subject to court order. Naturally, this raised a lot of questions and concerns (some of which are worthy of a whole other blog post).