Generic Construction of Public-key Authenticated Encryption with Keyword Search Revisited
نویسندگان
چکیده
Public key authenticated encryption with keyword search (PAEKS) has been proposed, where a sender's secret is required for encryption, and trapdoor associated not only but also the sender. This setting allows us to prevent information leakage of from trapdoors. Liu et al. (ASIACCS 2022) proposed generic construction PAEKS based on word-independent smooth projective hash functions (SPHFs) PEKS. In this paper, we propose new PAEKS, which more efficient than al.'s in sense that use one SPHF, used two SPHFs. addition, consistency considered security model stronger al.'s. Briefly, keywords even though Thus, sender should work against ciphertexts generated by another sender, if same associated. That is, previous definitions, there room ciphertext be searchable was specified when generated, violates authenticity PAKES. Our definition considers multi-sender captures case. indistinguishability chosen attack (IND-CKA) inside guessing (IND-IKGA), defined Qin (ProvSec 2021), an adversary allowed query challenge oracles. We highlight several issues terms functions, e.g., their does satisfy they claimed hold.
منابع مشابه
Public Key Encryption with Keyword Search Revisited
The public key encryption with keyword search (PEKS) scheme recently proposed by Boneh, Di Crescenzo, Ostrovsky, and Persiano enables one to search encrypted keywords without compromising the security of the original data. In this paper, we address three important issues of a PEKS scheme, “refreshing keywords”, “removing secure channel”, and “processing multiple keywords”, which have not been c...
متن کاملGeneric Combination of Public Key Encryption with Keyword Search and Public Key Encryption
In this paper, we study the problem of secure integrating public key encryption with keyword search (PEKS) with public key data encryption (PKE). We argue the previous security model is not complete regarding keyword privacy and the previous constructions are secure only in the random oracle model. We solve these problems by first defining a new security model, then give a generic construction ...
متن کاملPublic Key Encryption with Keyword Search
We study the problem of searching on data that is encrypted using a public key system. Consider user Bob who sends email to user Alice encrypted under Alice’s public key. An email gateway wants to test whether the email contains the keyword “urgent” so that it could route the email accordingly. Alice, on the other hand does not wish to give the gateway the ability to decrypt all her messages. W...
متن کاملPublic-Key Encryption with Registered Keyword Search
Public-key Encryption with Keyword Search (PEKS) enables a server to test whether a tag from a sender and a trapdoor from a receiver contain the same keyword. In this paper, we highlight some potential security concern, i.e. a curious server is able to answer whether any selected keyword is corresponding to a given trapdoor or not (called an offline keyword guessing attack). The existing semant...
متن کاملA Study of Public Key Encryption with Keyword Search
Public Key Encryption with Keyword Search (PEKS) scheme enable one to search the encrypted data with a keyword without revealing any information. The concept of a PEKS scheme was proposed by Boneh et al. in 2004 and Baek et al. who extended PEKS scheme into a secure channel free PEKS scheme (SCF-PEKS) which removes the assumption, a secure channel between users and a server. In this paper, we s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
سال: 2023
ISSN: ['1745-1337', '0916-8508']
DOI: https://doi.org/10.1587/transfun.2023cip0005