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Paper 2006/446
New Identity-Based Authenticated Key Agreement Protocols from Pairings (without Random Oracles)
Shengbao Wang and Zhenfu Cao and Kim-Kwang Raymond Choo
Abstract
We present the first provably secure ID-based key agreement protocol, inspired by the ID-based encryption scheme of Gentry, in the standard (non-random-oracle) model. We show how this key agreement can be used in either escrowed or escrowless mode. We also give a protocol which enables users of separate private key generators to agree on a shared secret key. All our proposed protocols have comparable performance to all known protocols that are proven secure in the random oracle model.
Note: Some minor changes were made to the security proof.
Metadata
- Available format(s)
- PDF PS
- Publication info
- Published elsewhere. In submission.
- Keywords
- identity-based cryptographyauthenticated key agreementbilinear pairingsstandard model
- Contact author(s)
- shengbao-wang @ cs sjtu edu cn
- History
- 2007-09-05: last of 9 revisions
- 2006-12-04: received
- See all versions
- Short URL
- https://ia.cr/2006/446
- License
-
CC BY