PCI-DSS refers to the credit card industries security compliance process for credit card merchants and software providers. More information on PCI-DSS on their offical website here.
Control version 4.0 was the first version to meet the general conditions for PCI-DSS certification, however official (external) certification was not sought until Control 4.4.
Control 4.0 implemented secure credit cards storage and restricted information (VCodes), but Cyrious chose to implement a more comprehensive security model with Control 4.4.
TDES utilizes a trinary key system. Each of these keys is necessary to encrypt and decrypt the information. These keys are supplied as follows:
Several new credit card options were required for PCI compliance.
The access to the credit card system is only as secure as the login for anyone with legitimate access to the same information. Control required several changed to fully meet PCI recommendations and requirements for user login security.