期刊名称：IAENG International Journal of Computer Science
印刷版ISSN：1819-656X
电子版ISSN：1819-9224
出版年度：2018
卷号：45
期号：4
页码：500-504
出版社：IAENG - International Association of Engineers
摘要：The current society, with a rapidly multiplyingdata volume, offered new valences and created new opportunitiesto develop cryptography. Public-key cryptosystems are themost important contribution of modern cryptography.Attribute-based encryption corresponds to the public keycryptography, and enables plain text access only if the user hasall the attributes which the original text was encrypted with.There are two types of Attribute-based encryption: Key-PolicyAttribute-Based Encryption and Ciphertext-Policy Attribute-Based Encryption.The basic idea of Ciphertext-policy Attribute-based encryptionscheme is that a cryptotext is associated to an accesspolicy. In Ciphertext-Policy Attribute-Based Encryption theauthorization is included in the encrypted data, and only userswho satisfy the associated policy can decrypt the data. Data canbe encrypted without knowing the number of users who candecrypt, but only specifying the policy enabling the decrypt.This paper proposes a quantum version of a Ciphertext-Policy Attribute-Based Encryption method. Our version isconceptually close to the classical one, dealing with quantummultilevel secret sharing scheme to encrypt quantum states andwith access structures, for decryption.
