METHOD AND APPARATUS FOR PREVENTING REPLAY ATTACK IN WIRELESS NETWORK ENVIRONMENT
First Claim
1. A method for preventing a replay attack, comprising the steps of:
- mutually exchanging a prime number between a main node and one or more children nodes;
generating, by the main node, a Prime Sequence Code Matrix (PSCM) corresponding to the prime number;
notifying, by the main node, the one or more children nodes of sequence orders corresponding to the one or more children nodes;
selecting, by the main node, an arbitrary value of a Prime Sequence Code-1 (PSC1) among a series of values corresponding to an arbitrary node in the PSCM;
computing, by the arbitrary node, a Prime Sequence Code-2 (PSC2) subsequent to receiving the PSC1 using a sequence order received from the main node and the prime number, and transmitting PSC2 to the main node; and
comparing, by the main node, the received PSC2 with the PSCM.
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Accused Products
Abstract
A method for preventing a replay attack is provided. A prime number is mutually exchanged between a main node and children nodes. The main node generates a Prime Sequence Code Matrix (PSCM) corresponding to the prime number, notifies the children nodes of sequence orders corresponding to the children nodes. The main node selects an arbitrary value of a Prime Sequence Code-1 (PSC1) among a series of values corresponding to an arbitrary node in the PSCM. The arbitrary node computes a Prime Sequence Code-2 (PSC2) subsequent to receiving the PSC1 using a sequence order received from the main node and the prime number. The PSC2 is transmitted to the main node. The main node compares the received PSC2 with the PSCM. The method can be easily applied by supplementing a weakness for a replay attack on the basis of an IEEE 802.15-4-2006 standard and minimizing system load.
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Citations
12 Claims
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1. A method for preventing a replay attack, comprising the steps of:
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mutually exchanging a prime number between a main node and one or more children nodes; generating, by the main node, a Prime Sequence Code Matrix (PSCM) corresponding to the prime number; notifying, by the main node, the one or more children nodes of sequence orders corresponding to the one or more children nodes; selecting, by the main node, an arbitrary value of a Prime Sequence Code-1 (PSC1) among a series of values corresponding to an arbitrary node in the PSCM; computing, by the arbitrary node, a Prime Sequence Code-2 (PSC2) subsequent to receiving the PSC1 using a sequence order received from the main node and the prime number, and transmitting PSC2 to the main node; and comparing, by the main node, the received PSC2 with the PSCM. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wireless communication network apparatus for preventing a replay attack, comprising:
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a first communication means generating a Prime Sequence Code Matrix (PSCM) using a prime number corresponding to a number of nodes, assigning the prime number and sequence orders to the nodes, selecting and transmitting an arbitrary value of a Prime Sequence Code-1 (PSC1) in the PSCM, receiving a Prime Sequence Code-2 (PSC2) corresponding to the PSC1 from the nodes, and checking PSC2; and a plurality of second communication means generating the PSC2 using the prime number, the sequence orders, and the PSC1 received from the first communication means, and transmitting the generated PSC2 to the first communication means. - View Dependent Claims (9, 10, 11, 12)
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Specification