Identity-Based Encryption Secure against Selective Opening Chosen-Ciphertext Attack

• Main Authors: Lai, Junzuo, DENG, Robert H., Liu, Shengli, Weng, Jian, Zhao, Yunlei
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2014
• Subjects: identity-based encryption; chosen ciphertext security; selective opening security; Information Security
• Online Access: https://ink.library.smu.edu.sg/sis_research/2605; https://ink.library.smu.edu.sg/context/sis_research/article/3605/viewcontent/Lai2014_Chapter_Identity_BasedEncryptionSecure_pv.pdf
• Institution: Singapore Management University

Security against selective opening attack (SOA) requires that in a multi-user setting, even if an adversary has access to all ciphertexts from users, and adaptively corrupts some fraction of the users by exposing not only their messages but also the random coins, the remaining unopened messages reta...