C# Eval Expression MD5 Exception

NOTE: Since 2020, the default generation is FIPS by default. So, this error only happens with old license key.

Problem

You execute a method from the Eval Expression.NET library, and the following error is thrown:

This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.

Solution

Cause

The default algorithm to validate the license key & name is not supported with FIPS enabled.

Fix

Ask for a compatible key

Contact us and we will send you a new key supporting FIPS: info@zzzprojects.com

Disable FIPS

Article: Disable FIPS