Host identity protocol method and apparatus

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique

Reexamination Certificate

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Details

C726S008000, C726S009000, C726S010000

Reexamination Certificate

active

07996675

ABSTRACT:
A modified Host Identity Protocol, HIP, base exchange method is provided for use by first and second HIP hosts (Initiator and Responder) having a shared state from a pre-existing relationship. In the modified HIP base exchange method, an authentication message (I2′) is sent (S2) from the first host (Initiator) to the second host (Responder) comprising an identifier (HITI) of the first host (Initiator) and a cryptographic item (PF). The authentication message (I2′) is received (S3) at the second host (Responder). Following receipt, the identifier and information relating to the shared state are used (S4) to authenticate the cryptographic item (PF). If the cryptographic item, and the rest of the authentication message, is authenticated, a confirmation message (R2′) is sent from the second host (Responder) to the first host (Initiator) to indicate successful authentication. These two messages (I2′and R2′) are equivalent to the I2and R2messages of the standard HIP base exchange protocol, and the requirement for the I1and R1messages from the standard HIP base exchange protocol is eliminated.

REFERENCES:
patent: 2007/0204150 (2007-08-01), Jokela et al.
patent: 2007/0274312 (2007-11-01), Salmela et al.
patent: WO 2005/101753 (2005-10-01), None
Lars Jessen Roost et al. The Host Identity Protocol: An Experimental Evaluation. Spring 2005. Aalborg University. p. 1-126.
Pekka Nikander. Host Identity Protocol. Feb. 23, 2005. p. 1-55.
R. Moskowitz & P. Nikander. RFC 4423: Host Identity Protocol (HIP) Architecture. May 2006. p. 1-25.
Thomas R. Henderson et al. Experience with the Host Identity Protocol for Secure Host Mobility and Multihoming. 2003. IEEE. 2120-2125.
R. Moskowitz. Internet Draft: Host Identity Payload and Protocol. Nov. 2001. p. 1-33.
Ren Yan Zhang Hongke Zhang Sidong IP Lab et al: “A proposal to replace HP base exchange with IKE-H method; draft-yan-hip-ike-h-01.txt;” IETF Standard-Working-Draft, Internet Engineering Task Force, IETF, CH, No. 1, May 10, 2005.

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