Searchable Symmetric Encryption

Abstract

Abstract: Searchable symmetric encryption allows operating on encrypted data, particularly keyword-based search on documents and range-based search on spatial data. Various methods can be used in Searchable symmetric encryption, such as order-preserving or fully homomorphic encryption, for different levels of information leakage. New schemes with more efficient search operations and reduced access and search pattern leakage that support novel settings, such as dynamic data sets and multiple users, have been proposed in the last few years. Especially with the emergence of cloud storage, encrypting sensitive remote data while preserving the ability to operate efficiently is an ample opportunity for the military and industry. However, there are risks when deploying Searchable symmetric encryption that must be considered since some Searchable symmetric encryption schemes proposed in the past have been (completely) broken by the research community.