Patent
Method and system for deriving an encryption key using joint randomness not shared by others
마리안 루돌프,라자트 프라탐 무커지 +1 more
- 19 Jan 2006
4
TL;DR: The present invention relates to a method and system for deriving an encryption key using JRNSO (joint randomness not shared by others), which may be generated by using a Diffie-Hellman key derivation algorithm.
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Abstract: The present invention relates to a method and system for deriving an encryption key using JRNSO (joint randomness not shared by others). Communicating entities are also generate JRNSO bits from a channel impulse response (CIR) estimate, JRNSO bits are used in the generation of encryption keys. The authentication type can be either pre-shared key system can be IEEE 802.1x. In the IEEE 802.1x system, a master key, PMK (pairwise master key) or (pairwise transient key) PTK may be generated using the JRNSO bits. Encryption keys may be generated by using a Diffie-Hellman key derivation algorithm.
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Citations
Radio-telepathy: extracting a secret key from an unauthenticated wireless channel
Suhas Mathur,Wade Trappe,Narayan B. Mandayam,Chunxuan Ye,Alexander Reznik +4 more
- 14 Sep 2008
TL;DR: This paper presents a protocol that allows two users to establish a common cryptographic key by exploiting special properties of the wireless channel: the underlying channel response between any two parties is unique and decorrelates rapidly in space.
Automatic Secret Keys From Reciprocal MIMO Wireless Channels: Measurement and Analysis
Jon W. Wallace,Rajesh K. Sharma +1 more
TL;DR: Information theoretic limits for random key generation in multiple-input multiple-output (MIMO) wireless systems exhibiting a reciprocal channel response are investigated experimentally with a new three-node MIMO measurement campaign.
293
Secret Key Extraction from Level Crossings over Unauthenticated Wireless Channels
Suhas Mathur,Wade Trappe,Narayan B. Mandayam,Chunxuan Ye,Alexander Reznik +4 more
- 01 Jan 2009
TL;DR: It is necessary to have alternatives for establishing keys between wireless peers without resorting to a fixed infrastructure to ensure availability of a certificate authority or a key management center in a dynamic mobile wireless environment.
8
Building information-theoretic confidentiality and traffic privacy into wireless networks
Suhas Mathur
- 01 Jan 2010
TL;DR: Building Information-Theoretic Confidentiality and Traffic Privacy into Wireless Networks and how to combine these into a coherent architecture for mobile networks is described.
References
Automatic Secret Keys From Reciprocal MIMO Wireless Channels: Measurement and Analysis
Jon W. Wallace,Rajesh K. Sharma +1 more
TL;DR: Information theoretic limits for random key generation in multiple-input multiple-output (MIMO) wireless systems exhibiting a reciprocal channel response are investigated experimentally with a new three-node MIMO measurement campaign.
293
Secret Key Extraction from Level Crossings over Unauthenticated Wireless Channels
Suhas Mathur,Wade Trappe,Narayan B. Mandayam,Chunxuan Ye,Alexander Reznik +4 more
- 01 Jan 2009
TL;DR: It is necessary to have alternatives for establishing keys between wireless peers without resorting to a fixed infrastructure to ensure availability of a certificate authority or a key management center in a dynamic mobile wireless environment.
8
Building information-theoretic confidentiality and traffic privacy into wireless networks
Suhas Mathur
- 01 Jan 2010
TL;DR: Building Information-Theoretic Confidentiality and Traffic Privacy into Wireless Networks and how to combine these into a coherent architecture for mobile networks is described.