Method and system for generating security access key value for radio frequency card
First Claim
1. A system for generating a security access key value for a radio frequency (RF) card, the system comprising:
- a card issuing unit, which reads a chip serial number from an empty RF card, performs an operation on the chip serial number according to a predetermined algorithm to generate a security access key value, and encodes the security access key value into the empty RF card;
an RF card, which is activated by a radio frequency radiated from a card terminal, and when the RF card receives the same security access key value as that it has from the card terminal, transmits information recorded in its memory area to the card terminal in order to pay charge for the use of the RF card; and
a card terminal, which receives a chip serial number from an RF card activated by a radio frequency radiated from an antenna of the card terminal, performs an operation on the chip serial number according to the predetermined algorithm the same as that used by the card issuing unit so as to generate a security access key value, and accesses the memory area of the RF card using the generated security access key value in order to collect charge for the use of the RF card.
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Accused Products
Abstract
A method and system for generating a unique security access key value for a radio frequency (RF) card are provided so that different kinds of RF cards issued by different companies can be read using a single card terminal in order to collect charge for the use of the RF cards. The system includes a card issuing unit, which reads a chip serial number from an empty RF card, performs an operation on the chip serial number according to a predetermined algorithm to generate a security access key value, and encodes the security access key value into the empty RF card; an RF card, which is activated by a radio frequency radiated from a card terminal, and when the RF card receives the same security access key value as that it has from the card terminal, transmits information recorded in its memory area to the card terminal in order to pay charge for the use of the RF card; and a card terminal, which receives a chip serial number from an RF card activated by a radio frequency radiated from an antenna of the card terminal, performs an operation on the chip serial number according to the predetermined algorithm the same as that used by the card issuing unit so as to generate a security access key value, and accesses the memory area of the RF card using the generated security access key value in order to collect charge for the use of the RF card.
44 Citations
7 Claims
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1. A system for generating a security access key value for a radio frequency (RF) card, the system comprising:
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a card issuing unit, which reads a chip serial number from an empty RF card, performs an operation on the chip serial number according to a predetermined algorithm to generate a security access key value, and encodes the security access key value into the empty RF card;
an RF card, which is activated by a radio frequency radiated from a card terminal, and when the RF card receives the same security access key value as that it has from the card terminal, transmits information recorded in its memory area to the card terminal in order to pay charge for the use of the RF card; and
a card terminal, which receives a chip serial number from an RF card activated by a radio frequency radiated from an antenna of the card terminal, performs an operation on the chip serial number according to the predetermined algorithm the same as that used by the card issuing unit so as to generate a security access key value, and accesses the memory area of the RF card using the generated security access key value in order to collect charge for the use of the RF card. - View Dependent Claims (2, 3, 4, 5)
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6. A method of generating a security access key value for a radio frequency (RF) card, the method comprising:
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generating a security access key value by performing an operation on a chip serial number transmitted from an empty RF card according to a predetermined algorithm and encoding the security access key value into the empty RF card, thereby issuing an RF card having the security access key value;
activating the RF card approaching within an effective distance of an antenna of a card terminal and reading the chip serial number from the RF;
generating a security access key value by performing an operation on the read chip serial number according to the algorithm used when the RF card is issued; and
trying to access a memory area of the RF card using the security access key value generated using the chip serial number read from the RF card, and when the access is allowed, collecting charge for the use of the RF card based on information stored in the memory area of the RF card. - View Dependent Claims (7)
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Specification