基于秘密共享的条件代理重加密方案攻击[EB/OL]
北京:中国科技论文在线
) 摘要: 最近,蓝才会等提出了一个新的基于秘密共享的条件代理重加密方案,并宣称他们的方案支持多条件``与''和``或"运算,且在随机预言机模型下能达到不可区分选择密文安全
本文通过给出具体攻击方法指出其方案并不满足其所宣称的不可区分选择密文安全
条件代理重加密 Liu Dan
选择密文安全
) Abstract: Recently,Lan et al
proposed a new condition proxy re-encryption scheme on secret sharing, and claimed that their scheme obtains multiple conditions "and" and "or" operation,Even in the random oracle model indicates that their scheme satisfy the security of indistinguishability against chosen-ciphertext attacks,However, by giving a concrete attack, we indicate that their scheme can't obtain IND-CPRE-CCA secure Keywords: secret sharing, indistinguishability,chosen ciphertext,conditional proxy re-encryption 下载PDF阅读器 PDF全文下载: 初稿 ( 22 ) 作者简介: 通信联系人: 【收录情况】 中国科技论文在线: 刘丹