Other standards and documentation:
<ul>
<item name="OpenSSL Cookbook"
- info="A free ebook that covers configuration and command-line usage; highly recommended. First published in 2013; continuously updated)."
+ info="A free ebook that covers configuration and command-line usage; highly recommended. Updated in March, with more than 30 new pages."
url="https://www.feistyduck.com/books/openssl-cookbook/">
<item name="X.680 and X.690"
info="The official ASN.1, BER and DER specifications."