Assertion Skew Factor for notBefore Time

This attribute is used to calculate the notBefore time of an assertion. For example, if IssueInstant is 2002-09024T21:39:49Z, and Assertion Skew Factor For notBefore Time is set to 300 seconds (180 is the default value), the notBefore attribute of the conditions element for the assertion would be 2002-09-24T21:34:49Z.

The total valid duration of an assertion is defined by the values set in both the Assertion Timeout and Assertion Skew Factor For notBefore Time attributes.