A Searchable Encryption Scheme Based on Lattice for Log Systems in燘lockchain

Semantic Searchable Encryption Scheme Based on Lattice in Quantum-Era

When data is outsourced to a remote storage server, searchable encryption plays an important role to protect data privacy while allowing users to retrieve data in the massive ciphertext. As far as we know, most of the existing searchable encryption schemes work based on the bilinear map. These schemes may not be secure in the quantum age. Both discrete logarithms and factorization can be solved...

A Searchable Symmetric Encryption Scheme using BlockChain

At present, the cloud storage used in searchable symmetric encryption schemes (SSE) is provided in a private way, which cannot be seen as a true cloud. Moreover, the cloud server is thought to be credible, because it always returns the search result to the user, even they are not correct. In order to really resist this malicious adversary and accelerate the usage of the data, it is necessary to...

Implementing a Similarity Searchable Encryption Scheme for Cloud Database Usage

Searchable Keyword-Based Encryption

To solve the problem of searching on encrypted data, many keyword search schemes have been proposed in recent years. The goal of such schemes is to enable a user to give an untrusted storage server the ability only to test whether an encrypted document contains a few keywords without learning anything else about the document. In this paper, we are concerned with decrypting the searched results ...

Lattice Forward-Secure Identity Based Encryption Scheme

Protecting secret keys is crucial for cryptography. There are some relatively insecure devices (smart cards, mobile phones etc.) which have threat of key exposure. The goal of the forward security is to protect security of past uses of key even if the current secret key is exposed. In this paper we propose lattice based forward-secure identity based encryption scheme based on LWE assumption in ...