4 min read
Martin Rupp (guest): 10. February 2023
The “Four Corners” model, also called the “Four Party Scheme”, is utilized in almost all standard card payment systems across the globe. Here, we...
4 min read
Martin Rupp (guest): 01. December 2022
Among all the various key block formats, the TR-34 format is undoubtedly one of the most sophisticated. The TR-34 norm is an implementation of the...
3 min read
Martin Rupp (guest): 05. November 2022
This article proposes a few answers to a series of frequently asked questions (FAQs) about key blocks and their use with PCI.
2 min read
Martin Rupp (guest): 10. September 2022
A key block is a unique piece of cryptography that is used to protect cryptographic keys while they are being sent over networks that might not be...
4 min read
Martin Rupp (guest): 10. September 2022
IBM’s mainframe computers have been a rock-steady part of banks’ security infrastructure for many years. Originating from the local data-center...
2 min read
Martin Rupp (guest): 15. July 2022
There are several types of key block formats used in different industries, especially the retail banking industry. The systems that use these key...
2 min read
Martin Rupp (guest): 10. May 2022
One aspect of key management is dealing with what happens when a symmetric cryptographic key is no longer needed. The section ‘Key Replacement,...
3 min read
Martin Rupp (guest): 26. November 2021
The PCI Council requires most actors of payment networks to implement ANSI X9.24/TR-31-compliant key blocks to wrap and securely transmit, transfer,...
2 min read
Martin Rupp (guest): 21. October 2021
This article proposes answers to a series of frequently asked questions (FAQs) about key blocks.
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