If You Don’t Want AES and ChaCha20 … There’s SM4

While AES has been proven to be secure, it hasn’t stopped Google from promoting ChaCha20. While AES is highly secure, in some applications it is perhaps too resource-intensive for some devices. ChaCha20 — a stream cipher — often has lesser processing requirements. So while AES and ChaCha20 are popular, in China, OSCCA (Organization of State Commercial Administration of China) has also authorized SM4 for…

--

--

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store
Prof Bill Buchanan OBE

Prof Bill Buchanan OBE

7K Followers

Professor of Cryptography. Serial innovator. Believer in fairness, justice & freedom. Based in Edinburgh. Old World Breaker. New World Creator. Building trust.