Method for updating secret shared data in a wireless communication system
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United States of America Patent
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Jun 5, 2001
Grant Date -
N/A
app pub date -
Jul 31, 1998
filing date -
Jul 31, 1998
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Abstract
In the method for updating secret shared data (SSD) in a wireless communication system, a first party outputs a first random number as a first challenge wherein the first party is one of a network and a mobile. A second party generates a second random number in response to the first challenge. The second party is the mobile if the first party is the network, and the second party is the network if the first party is the mobile. The second party generates a first challenge response by performing a keyed cryptographic function (KCF) on the first challenge and the second random number using a secondary key, which is not the SSD and is derived from a root key. The second party then transfers the second random number, as a second challenge, and the first challenge response to the first party. The first party verifies the second party based on the first and second challenges and the first challenge response, generates a second challenge response by performing the KCF on the second challenge using the secondary key, and transfers the second challenge response to the second party. The second party verifies the first party based on the second challenge and the second challenge response. Both parties respectively establish the SSD based on the first and second challenges.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- ALCATEL-LUCENT USA INC.
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Patel, Sarvar | Montville, NJ | 86 | 1355 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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