Patent ID: 11868992
Assignee: BANKS AND ACQUIRERS INTERNATIONAL HOLDING
Field: IT methods for management (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. A system comprising:
a cash register of a merchant;
a payment terminal of the merchant, said payment terminal being distinct from the cash register and configured to carry out payment operations in favor of said cash register; and
a trusted component providing a secured execution environment, said trusted component being coupled with the cash register, and said trusted component comprising:
a secured processor; and
a non-transitory computer-readable medium comprising instructions of a trust application stored thereon, which when executed by the processor configure the trusted component to perform acts comprising:
receiving, from the cash register, a first request for setting up a first secured communications channel with said trusted component, the first request comprising an identifier of said cash register, cyphered by the cash register with a key of said trusted component;
in response to receiving the first request, the trusted component setting up said first secured communications channel between the trusted component and the cash register by using at least said identifier of said cash register contained in said first request;
receiving, through a communication interface of the cash register, from the payment terminal of the merchant, distinct from the cash register, a second request for setting up a second secured communications channel with said trusted component, wherein the second request corresponds to a pairing instruction, sent to the payment terminal by the cash register, wherein the pairing instruction comprises session initialization data;
in response to receiving the second request, the trusted component setting up said second secured communications channel between the trusted component and said payment terminal by using at least one piece of data contained in said second request; and
after setting up the first and second secured communications channels:
receiving a first message through the second secured communications channel established with said secure component, originating from the payment terminal and addressed to said cash register, the first message containing said session initialization data intended for the cash register,
extracting said session initialization data from the first message, and
transmitting a second message to the cash register through the first secured communications channel, the second message containing the session initialization data intended for the cash register.