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Is OpenSSH using OpenSSL to encrypt traffic? Or something else?

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This is not strictly a duplicate, however this earlier question is probably relevant to help explain the concepts.… – user185 Apr 29 '11 at 23:01
up vote 17 down vote accepted

OpenSSH is a program depending on OpenSSL the library, specifically OpenSSH uses the libcrypto part of OpenSSL.

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It's worth mentioning that OpenSSH does not use the TLS protocol thats used for HTTPS etc. OpenSSH uses some of the OpenSSL cryptographic primatives. – JasperWallace Apr 22 '14 at 8:04

OpenSSH can be compiled without OpenSSL since 2014:

The author stated that this was in the making for a long time, but Heartbleed was likely the last straw.

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