attribute-based encryptionfine-grained access controlSM9 AlgorithmDispatching and Control Cloud (DCC) is a cloud platform constructed by State Grid Corporation with the technology of cloud computing. DCC has improved the overall operation and monitoring capabilities, the smart level and many other ...
Step4:密钥链矿工(KM)拿到变色龙哈希私钥(CHSK)后通过变色龙哈希算法更新Key Chain中CT为CT′。 Discussion 本方案使得未撤销访问权限和新授权的数据使用者(NDU)不但可以访问更新之前的数据还可以访问更新之后的数据,但被撤销访问权限的数据使用者(UDU)不能访问更新之后的数据,因为没有更新后的ABE私钥(ABEα′,SK)...
If the set S of attributes satisfies the access structure A then the algorithm will decrypt the ciphertext and return a message M . We now describe a security model for ciphertext-policy ABE schemes. Like identity-based encryption schemes [37, 13, 24] the security model allows the adversary...
then extend the R-CP-ABE to a primitive called Augmented R-CP-ABE (AugR-CP-ABE), which will lastly be transformed to a policy-specific blackboxtraceableR-CP-ABE. More specifically, in Sect.3, we define the encryption algorithm of AugR-CP-ABE asEncryptA(PP,M,R...
Countless data generated in Smart city may contain private and sensitive information and should be protected from unauthorized users. The data can be encrypted by Attribute-based encryption (CP-ABE), which allows encrypter to specify access policies in t
Parallel image encryption algorithm based on discretized chaotic map英文资料 Forward security in Hierarchical Identity-Based Encryption Scheme在分层的基于身份的加密方案的前向安全性 基于1-Wire总线的DS28E01加密芯片原理研究及其在FPGA加密系统中的应用 Study on Principle of DS28E01 Encryption Chip Based on ...
Ciphertext Policy Attribute-Based Encryption (CP-ABE), as a commonly used one-to-many encryption algorithm, can allow users to perform fine-grained access control on the encrypted data. Intuitively, the CP-ABE is helpful in ensuring the security of smart healthcare systems. In this case, the...
1 Introduction The notion of predicate encryption (PE) and attribute-based encryption (ABE), introduced by Katz et al. [2] and Sahai et al. [10] respectively, constitute an advanced class of encryption primitives known as functional encryption (FE) that provides more ?exible and ?ne-grained...
Attribute-Based Encryption (ABE) offers fine-grained decryption policy such that users can do decryption if their attributes satisfy the policy. Such flexibility enables it applicable in various applications in government and business. However, there are
Towards Robust IoT Security: A Blockchain Design with Attribute-Based Encryption Chapter © 2024 Securing Data Provenance in Internet of Things (IoT) Systems Chapter © 2017 Analysis of Retractable Attribute Base Encryption Algorithm for Internet of Things Driven by Blockchain Chapter © ...