fix: harden eventsub signature verification#611
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d-fischer merged 4 commits intotwurple:mainfrom Feb 3, 2025
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Type: Bugfix/Improvement
Force
sha256hmac to avoid algorithm downgrade and usetimingSafeEqualto avoid timing attacksPrevents notification forgery and secret key recovery (which would require node <17 or
--openssl-legacy-providerfor MD4 usage, and an extremely unrealistic number of http requests)