Attribute-Based Credential (ABC) schemes provide a privacy-friendly method to perform authentication. In such a system the user does not necessarily have to identify himself, but may reveal only partial information about him, i.e., attributes the user possesses. The use of this technique is a proper solution for several kinds of authentication where no full identification is required, e.g., buy...

In this paper, we present two fully secure functional encryption schemes. Our first resultis a fully secure attribute-based encryption (ABE) scheme. Previous constructions of ABEwere only proven to be selectively secure. We achieve full security by adapting the dualsystem encryption methodology recently introduced by Waters and previously leveraged toobtain fully secure IBE ...

As more sensitive data is shared and stored by third-party sites on the internet, there will be a need to encrypt data stored at these sites. One drawback of encrypting data is that it can be selectively shared only at a coarse-grained level. Attribute based encryption is a public-key-based one-to-many encryption that allows users to encrypt and decrypt data based on user attributes. A promisin...

Palmitoylation is a post-translational lipid modification involving the attachment of a 16-carbon saturated fatty acid, palmitate, to cysteine residues of substrate proteins through a labile thioester bond [reviewed in]. Palmitoylation of a substrate protein increases its hydrophobicity, and typically facilitates its trafficking toward cellular membranes. Recent studies have shown palmitoylatio...

Attribute-based encryption (ABE) is a technique used to encrypt data, it has the flexibility of access control, high security, and resistance collusion attacks, especially in cloud security protection. However, large number bilinear mappings are ABE, calculation pairing time-consuming. So there problem low efficiency. On other hand, decryption key not uniquely associated with personal identific...