Overview

Liferay Portal 5 and 6 support different permission algorithms.

Liferay Portal 5.2.x and 6.0.x supported permission algorithm 5. In addition, Liferay Portal 6.0.x introduced permission algorithm 6.

Brian Chan states, "Algorithm 6 is an improved version of Algorithm 5. It provides the exact same functionality, but reduces database size by 66%."

Please refer to the References section (below) for related links on permission algorithm 5 and 6.

If you are using Liferay Portal 5.2.x, you will be using permission algorithm 5.

But, if you are using Liferay Portal 6.0.x, you could be using permission algorithm 5 or 6.

How do you check which permission algorithm is active in Liferay Portal 6.0.x ?

Permission Algorithm Checks

Check 1 - Check Active Permission Algorithm Using System Admin Control Panel

1. Navigate to "Control Panel > Server Administration > Properties > Portal Properties"
2. Find property "permissions.user.check.algorithm" and confirm the value is 6.

Check 2 - Review Liferay Portal Database Tables

Permission algorithm 6 relies upon different tables and data in the database schema.

Review the row counts for the "Permission_" and "Resource_" tables.

Liferay Portal 6.0.x Permission Database Tables

Table Name	LP 5.2.x Row Count	LP 6.0.x Row Count
Permission_	31+	0
Resource_	20+	0

If permission algorithm 6 is active, the row count for the "Permission_" and "Resource_" tables will be 0 (empty).

References

• Permission Algorithms
• The New Liferay Permission Algorithm (a.k.a. 5, a.k.a RBAC)
• Proposing more permission optimizations
• Security Algorithm 6, bitwise based permission scheme