Abstract: Cryptographic digital signature certificate chains protect the authenticity of device level public keys used to verify a signature over the transaction data generated from a device private key. It is possible that quantum computers will be able to counterfeit certificate chains enabling massive fraud. The present disclosure provides a method of trusting a constrained device cryptographic public key in a distributed and off-line manner without traversing a cryptographic public key digital signature certificate chain. The method includes: receiving a request to validate a transaction from a payment device; extracting device identification data; interrogating the payment device to determine if data specific to the operator is stored; receiving and validating a local transaction authentication value or rejecting the device; determining whether the payment device is on a deny list, determining to authenticate the payment device; and provisionally validating the transaction.

Abstract: A method for secure transactions on a mobile handset or tablet equipped with a touch screen controlled by a secure processor such as a master secure element or Trusted Execution Environment having gesture recognition capabilities. Since the touch screen is fully controlled by the secure processor, the user can securely enter the transaction amount using gestures to validate the transaction.

Abstract: A reconfigurable digital wallet device such as a smart card containing a secure element and acting as an instantiation of a subset of a virtual wallet stored in the cloud. The digital wallet device is managed and synchronized with the virtual wallet in the cloud using a mobile device such as a smartphone.

Abstract: A smartcard communicating simultaneously with a smart phone and a point of sale, thereby allowing the smartcard to act as a bridge between the point of sale and the smart phone. The smart card is typically powered by the point of sale and typically communicates with the smart phone using BLUETOOTH Low Energy (BLE).

Abstract: The master secure element comprises a processor, a memory and a logic unit and at least controls the user input of the handset in order to secure the user authentication based on PIN entry. The PIN code is entered directly into the secure element with no possibility for the host processor to intercept the code or for a malware program to inject the code into the master secure element.

Abstract: A smartcard communicating simultaneously with a smart phone and a point of sale, thereby allowing the smartcard to act as a bridge between the point of sale and the smart phone. The smart card is typically powered by the point of sale and typically communicates with the smart phone using BLUETOOTH Low Energy (BLE).

Abstract: A reconfigurable digital wallet device such as a smart card containing a secure element and acting as an instantiation of a subset of a virtual wallet stored in the cloud. The digital wallet device is managed and synchronized with the virtual wallet in the cloud using a mobile device such as a smartphone.

Abstract: In accordance with the invention, in order to validate a transaction on a mobile handset, PC, tablet or similar device, a user closes the loop between a non-secure display controlled by a host processor and a secure keypad controlled by a secure processor such as a master secure element or trusted execution environment. The user validates the transaction by entering on the secure keypad the data shown on the non-secure display. The transaction is validated because the user only enters the data that the user agrees to and only the user is able to enter the data.

Abstract: The master secure element comprises a processor, a memory and a logic unit and at least controls the user input of the handset in order to secure the user authentication based on PIN entry. The PIN code is entered directly into the secure element with no possibility for the host processor to intercept the code or for a malware program to inject the code into the master secure element.

Abstract: A method for secure transactions on a mobile handset or tablet equipped with a touch screen controlled by a secure processor such as a master secure element or Trusted Execution Environment having gesture recognition capabilities. Since the touch screen is fully controlled by the secure processor, the user can securely enter the transaction amount using gestures to validate the transaction.

Abstract: The claimed subject matter can provide an architecture that can transparently provide more robust interactions between a host device and a smartcard or other mass media storage device by way of block level read or write operations provided as part of a standard interface protocol. A virtual controller can be installed on the smartcard to manage access to the data store of a smartcard. The virtual controller can provide special objects (e.g., files, directories, partitions . . . ) to the host, and upon an access to one of these special files, call an application to manage pre- or post-processing of the data transferred between the host and the smartcard.

Abstract: The claimed subject matter can provide an architecture that can transparently provide more robust interactions between a host device and a smartcard or other mass media storage device by way of block level read or write operations provided as part of a standard interface protocol. A virtual controller can be installed on the smartcard to manage access to the data store of a smartcard. The virtual controller can provide special objects (e.g., files, directories, partitions . . . ) to the host, and upon an access to one of these special files, call an application to manage pre- or post-processing of the data transferred between the host and the smartcard.

Abstract: In a system for data exchanges without physical contact between a generally mobile portable set and a terminal or a population of generally fixed terminals, it is sought to make a modular set comprising a portable object (notably a memory card) that can be inserted either into a transceiver device, or in an ISO reader for by example, by saving on an interface management system and by reducing the power consumption of the set to the minimum. The transceiver device is without any microprocessor, and the portable object houses means for the management notably of the transmission/reception protocol of the portable set and of the ISO 7816-3 protocol.