Multi-receiver Encryption Based on Certificateless Public Key Cryptography
Chul Sur, Chae-Duk Jung, Kyung-Hyune Rhee · 한국멀티미디어학회 학술발표논문집 · 2006
In this paper we first introduce the notion of multi-receiver certificateless encryption that avoids the inherent key escrow problem of multi-receiver identity-based encryption, and construct a highly efficient multi-receiver certificateless encryption scheme based on bilinear pairings, which does not need pairing computation to encrypt a message for multiple receivers. Moreover, the proposed scheme only needs one pairing computation to decrypt the ciphertext while recently proposed multi-receiver identity-based encryption scheme requires two pairing computations for decryption.