Need to reduce a UUID to 12 characters/Digits and more or less keep its unique property

Hello Together,

I what to reduce the length if a GUID to 12 characters (alphanumeric) but keep its unique (more or less)

I thought about calculating a Hash Key of a fixed length of 12. But I could not find a ABAP standard method that provide me a suitable calculation of a HASH with a fixed length.

Any other Ideas?

Kind regards

Markus