[PDF] Top 20 Downgradable Identity-based Encryption and Applications

... Identity-based encryption (IBE) is a concept introduced by Shamir in [Sha84] allowing encrypting for a specic recipient using solely his iden- tity (for example an email address or phone number) ... See full document

... selective- identity and chosen plaintext attacks (mKDM-sID-CPA security for short) if no adversary is able to distinguish between encryptions of a particular message m and encryptions of some functions of a set of ... See full document

... The concept of proxy re-encryption (PRE) is proposed by Blaze et al. [3] in 1998, which allows a semi-trusted proxy, with some information (a.k.a., the re-encryption key), to translate a ciphertext under ... See full document

... Identity Based Encryption (IBE) is an open key cryptosystem and disposes of the advantages of open key foundation (PKI) and explore relationship in popular open key ... See full document

... id-based encryption schemes in 2005, in which the identity was viewed as a set of descriptive ...fuzzy identity-based encryption scheme, a user with the secret key for the ... See full document

... (CPRE), identity-based PRE (IPRE) and broadcast PRE (BPRE), have been proposed for flexible ...conditional identity-based broadcast PRE (CIBPRE) and formalizes its semantic ... See full document

... An Identity-Based Encryption (IBE) is an interesting alternative to public key encryption, which simplify key management in a certificate-based Public Key Infrastructure (PKI) with use ... See full document

... In existing system each user’s private key size is 3log n points in an elliptic curve, where n is the number of leaf nodes (users) in the binary tree. The scheme also results in enormous computation workload for ... See full document

... Broadcast encryption (BE) allows a sender to broadcast its message to a set of receivers in a single ...broadcast encryption scheme, ciphertext length is always related to the size of the receiver ... See full document

... the encryption time (Enc time), and the decryption time (Dec time) according to the maximum depth of the pattern (L) where e and p denote the numbers of scalar multiplications and pairings, ...an encryption ... See full document

... Cryptography has mainly five elements named plain text, cipher text, keys, and encryption & decryption algorithm. In PKC, public private key pairs has been maintained. Everyone will know public key and private ... See full document

... Identity based Public key encryption supports basic presentation of open key cryptography by allowing a component's open key to be gotten from an optional recognizing evidence worth, for instance, ... See full document

... character based encryption plot which is provably secure in the standard ...personality based encryption conspire which is provably secure without arbitrary prophets, in spite of the fact that ... See full document

... Selective opening attacks (SOA) concern a multi-user scenario, where an adversary breaks into a subset of honestly created ciphertexts and tries to learn information on the plaintexts of some unopened (but potentially ... See full document

... of encryption and decryption in this study. A simulation of the encryption and decryption time was made to test the execution time of both processes by using the same machine and ...of encryption ... See full document

... the identity of the sender even to the recipient, for instance, a journalist wants to disclose a scandal about a politician who has participated in the presidential ... See full document

... Ostruvsky et al [9] in 2007 proposed an attribute based encryption with non-monotonic access structure. In this scheme, the access formula of access structure in private key can represent any type through ... See full document

... an identity-based (leveled) fully homomorphic encryption (IBFHE) scheme, and it was noted that several existing LWE-based IBE schemes satisfy the required ... See full document

... Thus, based on distributed computation, we will studydistributed remote data integrity checking model and presentthe corresponding concrete protocol in multi- cloud ... See full document

... receiver’s identity are needed to encrypt, and there is no way to communicate to the senders that an identity has been revoked, such a mechanism to regularly update users’ private keys seems to be the only ... See full document