Method of guaranteeing users' anonymity and wireless local area network (LAN) system therefor
First Claim
1. A method of guaranteeing users'"'"' anonymity in a wireless Local Area Network (LAN) system, the method comprising:
- (a) creating a temporary address set by randomly transforming a unique Media Access Control (MAC) address of a wireless terminal, and simultaneously transmitting more than one addresses included in the temporary address set to the wireless terminal; and
(b) performing data packet transmissions between the wireless terminal and a wireless access node using a temporary address selected from the temporary address set corresponding to the wireless terminal as a source address or a destination address, wherein in (a), the wireless access node encodes the temporary address set using a predetermined encryption key for the temporary address set, and transmits the encoded temporary address set to the wireless terminal.
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Accused Products
Abstract
A method of guaranteeing users'"'"' anonymity and a wireless LAN system therefor are provided. In a wireless LAN system, the method of guaranteeing user'"'"' anonymity includes (a) creating a plurality of temporary address sets, each of which corresponds to a unique Media Access Control (MAC) address of a wireless terminal and transmitting the temporary address set to the corresponding wireless terminal, and (b) performing data packet transmission between the wireless terminal and the wireless access node using a temporary address selected from the temporary address set as a source address or a destination address. Therefore, it is possible to guarantee users'"'"' anonymity and improve security of a system by not exposing a MAC address during data packet transmission between a wireless terminal and a wireless access node.
26 Citations
19 Claims
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1. A method of guaranteeing users'"'"' anonymity in a wireless Local Area Network (LAN) system, the method comprising:
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(a) creating a temporary address set by randomly transforming a unique Media Access Control (MAC) address of a wireless terminal, and simultaneously transmitting more than one addresses included in the temporary address set to the wireless terminal; and (b) performing data packet transmissions between the wireless terminal and a wireless access node using a temporary address selected from the temporary address set corresponding to the wireless terminal as a source address or a destination address, wherein in (a), the wireless access node encodes the temporary address set using a predetermined encryption key for the temporary address set, and transmits the encoded temporary address set to the wireless terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless Local Area Network (LAN) system of guaranteeing users'"'"' anonymity comprising:
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at least one wireless terminal; and a wireless access node adapted to create a temporary address set by randomly transforming a unique Media Access Control (MAC) address of wireless terminal, and use a temporary address selected from the temporary address set as a destination address, wherein the wireless terminal is adapted to simultaneously receive more than one temporary addresses included in the temporary address set corresponding to the unique MAC address thereof, and use a temporary address selected from the received temporary address set as a source address, wherein the wireless access node encodes the temporary address set using a predetermined encryption key for the address set, and respectively transmits the encoded temporary address set to the wireless terminal. - View Dependent Claims (10, 11, 12, 13)
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14. A wireless access node of guaranteeing users'"'"' anonymity comprising:
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a memory adapted to receive and store more than one temporary address sets, each of which consists of N (where N is an integer greater than or equal to two) random addresses and is created by randomly transforming a unique MAC address of a wireless terminal; and a destination address generation unit adapted to enable a temporary address set corresponding to the unique MAC address of the wireless terminal requesting authentication from among the temporary address sets stored in the memory, generate a temporary address randomly selected from the enabled temporary address set, and use the temporary address as a destination address, wherein the temporary address set is encoded using a predetermined encryption key for the temporary address set, and more than one temporary addresses included in the encoded temporary address set is simultaneously transmitted to the wireless terminal. - View Dependent Claims (15, 16)
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17. A wireless terminal of guaranteeing users'"'"' anonymity comprising:
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a memory adapted to receive and store a temporary address set including more than one temporary addresses simultaneously transmitted to the wireless terminal, created by randomly transforming a unique MAC address of the wireless terminal and encoded using a predetermined encryption key for the temporary address set, from a wireless access node, and store the temporary address set; and a source address generation unit adapted to generate a temporary address randomly selected from the temporary address set stored in the memory, and use the temporary address as a source address. - View Dependent Claims (18, 19)
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Specification