Information access control
First Claim
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1. A method for accessing information from a portable device, the method comprising:
- receiving information read from the portable device, a first portion of the information comprising optical information read optically from the portable device and a second portion of the information comprising electromagnetic information read electromagnetically from the portable device;
determining a cryptographic key from the received information; and
electromagnetically communicating with the portable device to retrieve an electromagnetic transmission packet from the portable device, the electromagnetic transmission packet comprising encrypted data; and
decrypting the retrieved encrypted data using the determined cryptographic key.
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Abstract
Methods and systems are provided for information access control. Information read from a portable device is received. One portion of the information includes optical information read optically from the portable device and another portion of the information includes electromagnetic information read electromagnetically from the device. A cryptographic key is determined from the received information. The portable device is communicated with electromagnetically to retrieve an electromagnetic transmission packet that includes encrypted data. The retrieved encrypted data are decrypted using the determined cryptographic key.
102 Citations
16 Claims
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1. A method for accessing information from a portable device, the method comprising:
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receiving information read from the portable device, a first portion of the information comprising optical information read optically from the portable device and a second portion of the information comprising electromagnetic information read electromagnetically from the portable device;
determining a cryptographic key from the received information; and
electromagnetically communicating with the portable device to retrieve an electromagnetic transmission packet from the portable device, the electromagnetic transmission packet comprising encrypted data; and
decrypting the retrieved encrypted data using the determined cryptographic key. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A processing device for accessing information from a portable device, the processing device comprising:
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a radio-frequency antenna;
an optical reader;
secure-access memory; and
a processor in communication with the radio-frequency antenna, the optical reader, and the secure-access memory, the processor coupled with a computer-readable storage medium having a computer-readable program embodied therein for directing operation of the process, the computer-readable program comprising;
instructions for receiving information from the portable device, a first portion of the information comprising optical information read optically from the portable device with the optical reader and a second portion of the information comprising electromagnetic information read electromagnetically from the portable device and received with the radio-frequency antenna;
instructions for determining a cryptographic key from the received information;
instructions for electromagnetically communicating with the portable device using the radio-frequency antenna to retrieve an electromagnetic transmission packet from the portable device, the electromagnetic transmission packet comprising encrypted data; and
instructions for decrypting the retrieved encrypted data using the determined cryptographic key. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification