Generic Construction of Forward Secure Public Key Authenticated Encryption with Keyword Search

ePrint Report: Generic Construction of Forward Secure Public Key Authenticated Encryption with Keyword Search

Keita Emura

Forward security is a fundamental requirement in searchable encryption, where a newly generated ciphertext is not allowed to be searched by previously generated trapdoors. However, forward security is somewhat overlooked in the public key encryption with keyword search (PEKS) context and there are few proposals, whereas forward security has been stated as a default security notion in the (dynamic) symmetric searchable encryption (SSE) context. …

ciphertext construction context encryption eprint report forward generated key proposals public public key report search searchable security