SSS-V2: Secure Similarity Search

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Provided by: International Association for Cryptologic Research
Topic: Security
Format: PDF
Encrypting information has been regarded as one of the most substantial approaches to protect users' sensitive information in radically changing internet technology era. In prior paper, researchers have considered similarity search over encrypted documents infeasible, because the single-bit difference of a plaintext would result in an enormous bits difference in the corresponding ciphertext. However, the authors propose a novel idea of Security Similarity Search (SSS) over encrypted documents by applying character-wise encryption with approximate string matching to keyword index search systems.
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