I don't know of an environment variable to enable that with OpenSSL, but there is one for NSS. For recent versions it has to be enabled at compile time, but it'

I don't know of an environment variable to enable that with OpenSSL, but there is one for NSS. For recent versions it has to be enabled at compile time, but it's enabled for the official Firefox binaries. https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NS...