Quote:
... and this alias tries to find compatibility between $encode's CBC vs OpenSSL.

I have been unable to find a combination of $encode()/$decode() that matches OpenSSL either.

As you noticed, older versions of openssl.exe use md5. At the time of implementation, I was using an even older version of openssl.exe. Unfortunately, I no longer have the test mIRC/perl/PHP/bat scripts and openssl.exe version that I was using in 2013 to confirm compatibility.

It does match Perl's blowfish CBC encrypt/decrypt though.

Unless there is a certain combination of switches and parameters that we're missing, I am going to assume that it does not match OpenSSL and will be removing this description from the help file.

I may look into adding a new switch to enable OpenSSL compatibility. I have added this to my to-do list. That said, I am not sure how useful this would be.