Facebook open sources library to enhance latest Transport Layer Security protocol


For several years, the Internet Engineering Task Force (IETF) has been working to improve the Transport Layer Security (TLS) protocol, which is designed to help developers protect data as it moves around the internet. Facebook created an API library called Fizz to enhance the latest version, TLS 1.3, on Facebook’s networks. Today, it announced it’s open sourcing Fizz and placing it on GitHub for anyone to access and use. Facebook is currently running more than 50 percent of its traffic through TLS 1.3 and Fizz, which they believe is the largest implementation of TLS 1.3 to date. All of this is referring to how traffic moves around the internet and how servers communicate with one another in a secure way. This is particularly important because as Facebook points out, in modern internet server architecture, it’s not uncommon to have different key pieces of the process spread out across the world. This raises challenges around reducing latency as data moves from server to server. One of the major issues involved writing data to a huge chunk of memory, which increased resource overhead and reduced speed. To get around this issue, Facebook decided to divide the data into smaller chunks as it moved…

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