Public Key Encryption with Keyword Search Revisited

Public Key Encryption with Keyword Search Based on K-Resilient IBE

An encrypted email is sent from Bob to Alice. A gateway wants to check whether a certain keyword exists in an email or not for some reason (e.g. routing). Nevertheless Alice does not want the email to be decrypted by anyone except her including the gateway itself. This is a scenario where public key encryption with keyword search (PEKS) is needed. In this paper we construct a new scheme (KR-PEK...

A New Trapdoor-indistinguishable Public Key Encryption with Keyword Search

The public key encryption with keyword search (PEKS) provides a way for users to search data which are encrypted under the users’ public key on a storage system. However, the original schemes are based on the unrealistic assumption of a secure channel between the receiver and the server. Baek et al. [1] first proposed a secure channel-free public key encryption with keyword search (SCF-PEKS) to...

Public Key Encryption with ’Fixed and Short Length’ Keyword Search

Cloud computing has emerged as a new technology that aims to provide unlimited virtualized resources to clients and enterprises. As services and huge sensitive data are being moved to the cloud server, a new challenge arises as to how to use the migrated data in a way that preserves privacy. Due to privacy concerns, important data should be encrypted before uploading onto cloud servers, so that...

Secure Keyword Search with Public Key Encryption by Cloud storage

Ciphertext-Policy Attribute-based Keyword Search with Revocation in Cloud through LSSS Approach

In the cloud computing, attribute-based encryption and public key encryption with keyword search are two popular issues. Ciphertext-policy attribute-based encryption is famous for its fine-grained access control. Keyword Search over encrypted files is an important function in the actual situation. We particularly concern the problem of revocation. Additionally, several solutions of the dynamic ...