What a server knows about you before it reads a single header

DEV Community·6 points·remdore·6 days ago·dev.to

A TLS handshake is a detailed statement about your software. Chrome offers 15 cipher suites and speaks HTTP/2; Python offers 30 and cannot. Five Chrome handshakes gave five different JA3 hashes and one JA4, which turns out to be the whole reason JA4 exists.

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#python #reads #single #server #header #server knows #single header #security

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