What is the designation for a merchant using a PCI PTS-approved end-to-end encryption solution?

The designation for a merchant using a PCI PTS-approved end-to-end encryption solution is SAQ B-IP. This self-assessment questionnaire (SAQ) is specifically designed for merchants who utilize point-of-interaction systems with an approved encryption solution that protects cardholder data. SAQ B-IP indicates that the merchant employs point-to-point encryption, ensuring that card data is encrypted at the point of entry and remains secure throughout the transaction process.

This designation acknowledges that the implementation of an end-to-end encryption solution significantly enhances the security posture of the merchant by minimizing the risk of data breaches and protecting sensitive cardholder information. Merchants falling under this classification are assessed against specific requirements to validate that their chosen encryption technology aligns with PCI DSS standards and properly protects cardholder data.

Other options like SAQ A, SAQ B, and SAQ C are aimed at different scenarios that do not involve the use of end-to-end encryption solutions or only cover different types of payment environments and security measures.