Identity-based encryption from the Weil pairing. (English) Zbl 1002.94023

Boneh, Dan; Franklin, Matt

Kilian, Joe (ed.), Advances in cryptology - CRYPTO 2001. 21st annual international cryptology conference, Santa Barbara, CA, USA, August 19-23, 2001. Proceedings. Berlin: Springer. Lect. Notes Comput. Sci. 2139, 213-229 (2001).

Summary: We propose a fully functional identity-based encryption scheme. The scheme has chosen ciphertext security in the random oracle model assuming an elliptic curve variant of the computational Diffie-Hellman problem. Our system is based on the Weil pairing. We give precise definitions for secure identity based encryption schemes and give several applications for such systems.
For the entire collection see [Zbl 0969.00102].

MSC:

94A60	Cryptography
14G50	Applications to coding theory and cryptography of arithmetic geometry

Keywords:

encryption; ciphertext security; random oracle model; Weil pairing