Hierarchical functional encryption
Web10 de dez. de 2024 · Simple Functional Encryption Schemes for Inner Products. Conference Paper. Mar 2015. Michel Abdalla. Bourse Florian. Angelo De Caro. David Pointcheval. View. Show abstract. Web3 de nov. de 2024 · The rapid development of communication technologies, the network, advanced computing methods and wireless medical sensors gives rise to a modern medical system. In this system, large-scale electronic health records (EHRs) are often outsourced to be stored at the third parties, such as cloud service providers (CSPs). However, CSPs …
Hierarchical functional encryption
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Webciphertext attribute expressed by x satisfies the formula expressed by v.Although Bob knows sk v and v, Bob has no idea which attribute x is embedded in ct x except that the ciphertext attribute satisfies the formula, i.e., v·x = 0, if the fully attribute-hiding security is achieved. On the other hand, Bob may obtain some additional information on the … WebRoughly speaking, functional encryption supports restricted secret keys that enable a key holder to learn a specific function of encrypted data, but learn nothing else about the …
WebBrakerski, Z., Chandran, N., Goyal, V., Jain, A., Sahai, A., Segev, G.: Hierarchical functional encryption (2024) Google Scholar 5. Brakerski Z Dagmi O Zikas V De Prisco R Shorter circuit obfuscation in challenging security models Security and Cryptography for Networks 2016 Cham Springer 551 570 10.1007/978-3-319-44618-9_29 06641773 … Web19 de out. de 2015 · Functional encryption provides fine-grained access control for encrypted data, allowing each user to learn only specific functions of the encrypted data. …
Web1 de mar. de 2010 · Fully Secure Functional Encryption: Attribute-Based Encryption and (Hierarchical) Inner Product Encryption. Allison Lewko, Tatsuaki Okamoto, Amit Sahai, … WebIn contrast to the conventional all-or-nothing encryption, functional encryption (FE) allows partial revelation of encrypted information based on the keys associated with different functionalities. Extending FE with key delegation ability, hierarchical functional encryption (HFE) enables a secret key holder to delegate a portion of its decryption ability to others …
Web1 de mar. de 2010 · Fully Secure Functional Encryption: Attribute-Based Encryption and (Hierarchical) Inner Product Encryption. Allison Lewko, Tatsuaki Okamoto, Amit Sahai, Katsuyuki Takashima, and Brent Waters Abstract. In this paper, we present two fully secure functional encryption schemes. Our first result is a fully secure attribute-based …
Web11 de jun. de 2024 · Functional Encryption (FE) expands traditional public-key encryption in two different ways: it supports fine-grained access control and allows learning a function of the encrypted data. In this paper, we review all FE classes, describing their functionalities and main characteristics. In particular, we mention several schemes for each class, … the powerhouse that generates atp energyWebFully Secure Functional Encryption 65 There is one important subtlety inherent in the dual system technique. In the step where the kth key becomes semi-functional, the simulator … sierra designs tabernash 4 footprintWebThis book provides awareness of methods used for functional encryption in the academic and professional communities. The book covers functional encryption algorithms and … the powerhouse wedding venueWebHierarchical Functional Encryption Zvika Brakerski Gil Segevy Abstract Functional encryption provides ne-grained access control for encrypted data, allowing each user to learn only speci c functions of the encrypted data. We study the notion of hierarchical … the powerhouse stoney creek menuWeb1 de set. de 2024 · Inner product functional encryption (IPFE), as a novel cryptographic primitive, can be classified into public-key IPFE (PK-IPFE) and secret-key IPFE (SK … the power index at infinity weighted votingWebKeywords: Hierarchical · Functional encryption · Matrix product · Hash proof system 1 Introduction Encryption can provide confidentiality and privacy for our sensitive information in a variety of ways. Typically, conventional encryption is in an all-or-nothing fashion that an entity is able to either access all the encrypted information or the power house rocky mount ncWebIn contrast to the conventional all-or-nothing encryption, functional encryption (FE) allows partial revelation of encrypted information based on the keys associated with different … the power in a circuit with 120v and 5a is