I'm not an expert on Shiro, but there are a number of high level differences, e.g., - Shiro covers authorization, plus authentication, session mgt, etc. The Ca

I'm not an expert on Shiro, but there are a number of high level differences, e.g., - Shiro covers authorization, plus authentication, session mgt, etc. The Carta project is authorization only - Shiro relies on external data to make authorization decisions. The Carta project stores that data internally - Shiro is run as part of your app. The Carta project is run as a separate service - Related: Shiro is specific to Java.