Secure NFC apparatus and method supporting various security modules in plug-in fashion
First Claim
Patent Images
1. A secure Near Field Communication (NFC) apparatus, comprising:
- a plug-in socket for inserting a security module;
an NFC unit outside the plug-in socket, configured to communicate with an external device via non-contact NFC based on a first communication protocol, and configured to additionally communicate with the security module inserted in the socket; and
a protocol matching unit outside the plug-in socket and connected between the NFC unit and the socket such that signals communicated between the NFC unit and the inserted security module pass through the protocol matching unit, wherein the inserted security module is communicated with the protocol matching unit based on a second communication protocol;
wherein said protocol matching unit is configured toidentify a type of the security module by communicating with the security module inserted in the plug-in socket,generate a chip identification signal related to the type of the security module,identify the first communication protocol in which signals are communicated between the NFC unit and the protocol matching unit,identify the second communication protocol in which signals are communicated between the protocol matching unit and the inserted security module, andbased on the chip identification signal, determine if the first communication protocol matches the second communication protocol,wherein the protocol matching unit comprises a protocol conversion unit configured to perform protocol conversion between the first and second communication protocols in response to a determination that the first communication protocol does not match the second communication protocol; and
in response to a determination that the first communication protocol matches the second communication protocol, the protocol matching unit causes signals output by the NFC unit to bypass the protocol conversion unit and to be transferred to the inserted security module without protocol conversion, and causes signals output by the inserted security module to bypass the protocol conversion unit and to be transferred to the NFC unit without protocol conversion.
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Abstract
A secure NFC apparatus includes a plug-in socket, an NFC unit, and a protocol matching unit. A security module is inserted in the plug-in socket. The NFC unit communicates with the outside via non-contact NFC using signals based on an S2C protocol. The protocol matching unit determines the type of chip in the inserted security module, generates a chip identification signal according to results of the identification, and matches the protocol of the signals based on the S2C protocol, which are input to and output from the NFC unit, with the protocol of the signals, which are input to and output from the security module, according to the chip identification signal.
33 Citations
26 Claims
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1. A secure Near Field Communication (NFC) apparatus, comprising:
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a plug-in socket for inserting a security module; an NFC unit outside the plug-in socket, configured to communicate with an external device via non-contact NFC based on a first communication protocol, and configured to additionally communicate with the security module inserted in the socket; and a protocol matching unit outside the plug-in socket and connected between the NFC unit and the socket such that signals communicated between the NFC unit and the inserted security module pass through the protocol matching unit, wherein the inserted security module is communicated with the protocol matching unit based on a second communication protocol; wherein said protocol matching unit is configured to identify a type of the security module by communicating with the security module inserted in the plug-in socket, generate a chip identification signal related to the type of the security module, identify the first communication protocol in which signals are communicated between the NFC unit and the protocol matching unit, identify the second communication protocol in which signals are communicated between the protocol matching unit and the inserted security module, and based on the chip identification signal, determine if the first communication protocol matches the second communication protocol, wherein the protocol matching unit comprises a protocol conversion unit configured to perform protocol conversion between the first and second communication protocols in response to a determination that the first communication protocol does not match the second communication protocol; and in response to a determination that the first communication protocol matches the second communication protocol, the protocol matching unit causes signals output by the NFC unit to bypass the protocol conversion unit and to be transferred to the inserted security module without protocol conversion, and causes signals output by the inserted security module to bypass the protocol conversion unit and to be transferred to the NFC unit without protocol conversion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A secure Near Field Communication (NFC) method using a security module plugged in a socket of a secure NFC apparatus, the method comprising:
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communicating an external device with a NFC unit of the secure NFC apparatus via non-contact NFC based on a first communication protocol, the NFC unit being outside the socket and configured to additionally communicate with the security module through a protocol matching unit of the secure NFC apparatus, said protocol matching unit being outside the socket and connected between the security module and the NFC unit, wherein the inserted security module is communicated with the protocol matching unit based on a second communication protocol; the protocol matching unit identifying a type of the security module by communicating with the security module inserted in the socket and generating a chip identification signal related to the type of the security module; the protocol matching unit identifying the first communication protocol in which signals are communicated between the NFC unit and the protocol matching unit; the protocol matching unit identifying the second communication protocol in which signals are communicated between the protocol matching unit and the inserted security module; based on the chip identification signal, the protocol matching unit determining if the first communication protocol matches the second communication protocol; the protocol matching unit performing conversion, by means of a protocol conversion unit included in the protocol matching unit, between the first communication protocol and the second communication protocol in response to a determination that the first communication protocol does not match the second communication protocol; and the protocol matching unit causing the signals communicated between the NFC unit and the security module to bypass the protocol conversion unit in response to a determination that the first communication protocol matches the second communication protocol. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification