夜晚 发表于 2025-3-28 16:24:33
http://reply.papertrans.cn/43/4247/424693/424693_41.pngToxoid-Vaccines 发表于 2025-3-28 21:33:11
adversary has access to a decryption oracle. An efficient KDM.-CCA secure PKE scheme for affine functions was proposed by Lu, Li and Jia (LLJ, EuroCrypt2015). We point out that their security proof cannot go through based on the DDH assumption..In this paper, we introduce a new concept . . and defin