China’s Great Firewall is a complex and opaque censorship system affecting over a billion internet users. It impacts privacy tool design globally and poses challenges for researchers and policymakers. Jackson Sippe, a PhD researcher at the University of Colorado Boulder, studies national censorship systems and contributed to a study on a new Great Firewall technique that disrupted encrypted proxies in China. Jackson joins Gregor Vand to discuss the Great Firewall’s mechanics, the 2021–2023 blocking event, a popcount-based detection algorithm, and the implications for the open internet’s future.
Gregor Vand is a security technologist with experience as a CTO in cybersecurity firms, based in Singapore. More details can be found on his profile at vand.hk or LinkedIn.
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