[ruby/openssl] pkey: use EVP_PKEY_dup() if available
We can use it to implement OpenSSL::PKey::PKey#initialize_copy. This should work on all key types, not just DH/DSA/EC/RSA types.
https://github.com/ruby/openssl/commit/66cd8cbaaf
Added by rhenium (Kazuki Yamaguchi) almost 4 years ago
[ruby/openssl] pkey: use EVP_PKEY_dup() if available
We can use it to implement OpenSSL::PKey::PKey#initialize_copy. This
should work on all key types, not just DH/DSA/EC/RSA types.
https://github.com/ruby/openssl/commit/66cd8cbaaf