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Paper 2004/180
Efficient Identity-Based Encryption Without Random Oracles
Brent R. Waters
Abstract
We present the first efficient Identity-Based Encryption (IBE) scheme that is fully secure without random oracles. We first present our IBE construction and reduce the security of our scheme to the decisional Bilinear Diffie-Hellman (BDH) problem. Additionally, we show that our techniques can be used to build a new signature scheme that is secure under the computational Diffie-Hellman assumption without random oracles.
Metadata
- Available format(s)
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. Eurocrypt 2005
- Keywords
- Identity-Based Encryption
- Contact author(s)
- bwaters @ cs stanford edu
- History
- 2010-12-11: last of 3 revisions
- 2004-07-26: received
- See all versions
- Short URL
- https://ia.cr/2004/180
- License
-
CC BY