General Group Oriented ID-based Cryptosystems with Chosen Plaintext Security

A scheme for general group oriented ID-based cryptosystems is proposed. This scheme allows an authorized subset in the general access structure to cooperatively decrypt the ciphertext of a message. It is constructed using bi-linear pairings. Its security is based on the intractability of the computational bilinear Diffie-Hellman problem. The scheme possesses chosen-plaintext security in the random oracle model.

• Type: Journal
• Year: 2008
• Where: IJNSEC
• Authors: Chunxiang Xu, Junhui Zhou, Guozhen Xiao
• Keywords: Computational Bilinear Diffie-hellman, General Access Structure, IJNSEC 2008, Random Oracle Model