It only addresses half the problem, but Ruby's own man page has a bolded warning: http://ruby-doc.org/stdlib-2.4.0/libdoc/openssl/rdoc/OpenSSL/Cipher.html http

It only addresses half the problem, but Ruby's own man page has a bolded warning: http://ruby-doc.org/stdlib-2.4.0/libdoc/openssl/rdoc/OpenSSL/Cipher.html http://ruby-doc.org/stdlib-2.4.0/libdoc/openssl/rdoc/OpenSSL... Always create a secure random IV for every encryption of your Cipher