New Post: PIN TRANSLATION FROM TPK TO ZPK

Hi!

When you are generating PIN key using HC command for POS terminal you should use ANSI scheme 'X' for exported key as in example below:

0000HCUA742C4D5245766BBCF3DD22E2A659FDE;XU0 

If you are using Variant scheme 'U' for key under TMK the resulting key decrypted by terminal will be different than you are expecting. Thales Variant scheme a bit transforms LMK to encrypt different types and lengths of keys. 'X' scheme is the correct one to get the same key on terminal and host sides. On host side (application) you should keep the key under LMK in 'U' scheme.

Regards,
Juris