通信学报
• 论文I 密码算法与安全协议 • 上一篇 下一篇
刘文浩,王圣宝,曹珍富,韩立东
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摘要: 可托管公钥加密方案中1个公钥对应于2个解密私钥,它可大大减少公钥基础设施PKI中公钥证书的数目,从而降低其公钥证书管理的负荷。同时对于用户端来说,它也能减小所需私钥存储空间,减轻用户的私钥管理负担。提出2个新的可托管公钥加密方案,其中第2个方案是文献中所有现存同类方案中最为高效的。它也是第1个可证安全的此类方案,其安全性基于标准的双线性Diffie-Hellman假设。
Abstract: In an escrowable public key encryption (E-PKE) scheme, there are two keys associated with one public key. It can reduce the total number of certificates in the public key infrastructure (PKI) to a large extent, thus degrade the complexity of certificate management. Moreover, an E-PKE scheme can also reduce the key storage for end users. Two such schemes were proposed, with the second one being the most efficient one among all existing E-PKE schemes. It is also the first provably secure E-PKE scheme, whose security is based on the standard bilinear Diffie-Hellman (BDH) assumption.
刘文浩,王圣宝,曹珍富,韩立东. 可证安全的高效可托管公钥加密方案[J]. 通信学报.
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https://www.infocomm-journal.com/txxb/CN/Y2014/V35/I7/4