[PDF] Top 20 Time-Based Direct Revocable Ciphertext-Policy Attribute-Based Encryption with Short Revocation List

... with attribute update by the cloud ...the ciphertext and re-generates new secret key for users, who have updated their ...Embedding Revocation List into Ciphertext (Direct) ... See full document

... [23], attribute-based encryption [11, 21, 24, 13, 20] has been an active research area in cryptography in part since it is a primitive with interesting functional applications [10, 5] and can be ... See full document

... enforcing direct user revocation in the context of ...very short ciphertexts, especially constant number of revocation controlling components, with- out imposing any extra overhead in the ... See full document

... Abstract Ciphertext-Policy Attribute-Based Encryp- tion (CP-ABE) is an access control mechanism over encrypted data and well suited for secure group-based ...Identity-based ... See full document

... Abstract—Ciphertext Policy Attribute-Based Encryption (CP- ABE) has been proposed to implement the attribute-based access control ...access policy such that only ... See full document

... control policy which is applied over encrypted data using private keys and cipher ...the attribute set that the decryptor needs to possess in order to decrypt the cipher ...user based on their ... See full document

... In this, Randomizable Proofs and Delegatable Anonymous Credentials revise the entire approach to constructing anonymous credentials and identify randomizable zero-knowledge proof of knowledge systems as the key building ... See full document

... In the first category like [4, 8, 9, 10, 16] and ours, in order to lighten the burden of key generator authority, several domain authorities with a hierarchy structure are considered. The main goal in such the systems is ... See full document

... more direct control on access policies and the policy checkingoccurs “inside the ...an attribute-based access control frameworkfor cloud storage systems and propose a fine-grained ... See full document

... some time, or some private keys might be compromised, key revocation or update for each attribute is necessary in order to make systems ...user revocation can be done via the proxy ... See full document

... - Ciphertext Policy Attribute Based Encryption (CP-ABE) has been desired encryption knowledge to solve the stimulating difficult of secure data sharing in cloud ...computing. ... See full document

... This is commonly believed that we are currently starting a second period of development of cryptography. This “era of modern cryptography” sees the creation and the improvement of many advanced cryptographic schemes, ... See full document

... impacted attribute KEKs are updated and ...The attribute KEKs are generated and maintained via a global binary tree that assigns users to the leaf ...user’s attribute set in order to generate and ... See full document

... Hierarchical Identity based encryption Scheme (HIBE) is that the hierarchic variety of IBE[19]. The conception of HIBE theme will facilitate to elucidate the definition of security. In a regular IBE ... See full document

... Identity Based Encryption (IBE) was proposed to obviate the need for a user to a priori possess a certificate obtained using ...the ciphertext, would be alone able to decrypt the ... See full document

... an attribute based encryption (ABE) scheme for arbitrary predicate into an ABE scheme for its dual ...into ciphertext-policy ABE (CP-ABE), and vice versa, for dually related ... See full document

... text-policy attribute-based hybrid secret writing with verifiable delegation ...our ciphertext policy attribute-based hybrid encryption, we may delegate the ... See full document

... allow revocation, as the same value could be kept by the users and reused after their key is no longer supposed to be ...each ciphertext, which gives the gatekeeper a large amount of information such as the ... See full document

... character based encryption was at first displayed by Horwitz and Lynn ...identity based encryption. In character based encryption the trusted party is the private key ...dynamic ... See full document

... same time. If users attribute is not valid, then the user is unable to access future PHR files using that ...using attribute based encryption we can encrypt personal health records ... See full document