arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1208.5848cs.CR
收藏

更新CP-ABE中属性的一种新方法

Updating attribute in CP-ABE: A New Approach

Nishant Doshi, Devesh Jinwala

摘要:

在基于属性的密文-策略加密(CP-ABE)中,属性被附加到用户的秘密密钥上,访问策略被附加到密文上。如果用户的秘密密钥中的属性满足该策略,则只有真正的用户才能解密密文。然而,这种情况还需要利用变化的属性周期性地更新秘密密钥。根据我们的观察,目前这样做的尝试效率不高。本文提出了一种新的方法,在不知道其他属性的情况下,有效地增加、更新或删除特定属性的值。

英文摘要:

In Ciphertext-Policy Attribute Based Encryption (CP-ABE), attributes are attached to the user's secret key and access policy is at-tached to the ciphertext. If attributes in the secret key of a user satisfy the policy then only the genuine user can decrypt the ciphertext. However, such scenario also necessitates periodic updating of the secret key with the changing attributes. According to our observations, the existing attempts at doing so are not efficient. In this paper, we propose a newer approach to add, update or delete the value of particular attribute effi-ciently without the knowledge of the other attributes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑