[PDF] Top 20 (Hierarchical) Identity-Based Encryption from Affine Message Authentication

... Identity-based encryption (IBE) [28] enables a user to encrypt to a recipient’s identity id ...challenge identity id ∗ after seeing the public key and arbitrarily many user secret keys ... See full document

... Works. Identity-based encryption (IBE) is one of most powerful build- ing blocks to provide data confidentiality which can encrypt a message with- out retrieving and verifying the public key ... See full document

... is based on quadratic residue problems modulo a composite n = p · q (where p and q are large primes) and was published shortly after the publishing of ...an encryption of an `-bit message consists of ... See full document

... transformations from DIBE to ABE. Attribute- Based Encryption (ABE), introduced by Sahai and Waters [SW05], is a generalization of both identity-based encryption and broadcast ... See full document

... for identity-based ...transformation from passively-secure IBE to chosen-ciphertext PKE also holds in the KDM ...of identity-based encryption with key-dependent security in the ... See full document

... tree encryption (BTE) ...a message for some node, one uses the name of the target node as the public key to encrypt the ...ε from a PKG and each of other nodes can derive its secret key from ... See full document

... the authentication and confidentiality in a broker-less content based publish/subscribe ...any identity. To decrypt the message, a receiver has to obtain a private key for its identity ... See full document

... use identity ID contacts PKG, which uses the master private key to generate privatekey for identity ...of message, the authorized user must obtain an appropriate private key from ... See full document

... MAC from any chosen ciphertext attack (CCA) secure (symmetric- or public-key) ...CCA-secure encryption seems like a complete “overkill” for building ...CCA-secure encryption schemes are actually ... See full document

... Obviously, such a data sharing system can provide confidentiality and backward secrecy. Furthermore, the method of decrypting and re-encrypting all the shared data can ensure forward secrecy. However, this brings new ... See full document

... Public key cryptosystem was introduced by Diffie and Hellman (1976) to resolve two major problems which were privacy and authentication. The main interest of public key cryptosystem was to deliver message ... See full document

... the authentication and confidentiality in a broker-less content based publish/subscribe ...any identity. To decrypt the message, a receiver has to obtain a private key for its identity ... See full document

... user’s identity provider) and, on the basis of that authentication statement (usually being some kind of a token), use other services and applications within ... See full document

... the message. Then, the sender encrypts both the message and the signature using a symmetric encryption algorithm, such as AES [2] or DES ...authenticated encryption scheme (it is also called ... See full document

... Attribute Encryption (CP-ABE) under concrete and noninteractive cryptographic assumptions in the standard ...size, encryption, and decryption time scales linearly with the complexity of the access ... See full document

... its authentication and security features, which can be applied at the port level or at the user ...web-based authentication, and then assigned a pre-defined operational ... See full document

... In short, the RankSign algorithm uses an efficient decoding algorithm which takes input a random word of the syndrome space (obtained from the hash of the file we want to sign) and outputs a word of small weight ... See full document

... 8. Implementations. The authentication mechanism described in this Standard may be implemented in software, firmware, hardware, or any combination thereof. NIST has developed a Cryptographic Module Validation ... See full document

... are sent to P . (Naturally, P will not be able to receive these messages before obtaining his/her own user secret key during registration.) Now we claim that P ’s view in that scenario cannot be simulated efficiently. ... See full document

... As the core idea of our proposal is general, it allows various instantiations, by seeing OTR or OTR ′ as a prototype. What we need is just to instantiate R e accepting n-bit input and tweak (N, i, ω), and producing n-bit ... See full document