20240015014. DYNAMIC AND VERIFIABLE SEARCHABLE ENCRYPTION METHOD AND SYSTEM BASED ON UPDATABLE ENCRYPTION AND BLOCKCHAIN simplified abstract (HANGZHOU CITY UNIVERSITY)
DYNAMIC AND VERIFIABLE SEARCHABLE ENCRYPTION METHOD AND SYSTEM BASED ON UPDATABLE ENCRYPTION AND BLOCKCHAIN
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DYNAMIC AND VERIFIABLE SEARCHABLE ENCRYPTION METHOD AND SYSTEM BASED ON UPDATABLE ENCRYPTION AND BLOCKCHAIN - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240015014 titled 'DYNAMIC AND VERIFIABLE SEARCHABLE ENCRYPTION METHOD AND SYSTEM BASED ON UPDATABLE ENCRYPTION AND BLOCKCHAIN
Simplified Explanation
The patent application describes a method and system for dynamic and verifiable searchable encryption. The method is designed for scenarios where the data user and the data owner are not the same party. It utilizes updatable encryption technology to update the secret key in the searchable encryption, ensuring chosen ciphertext security (CCA) and ciphertext integrity (CTXT) security. Additionally, the method employs blockchain technology to publicly verify the search results and determine the trustworthiness of the cloud server. This improves the practicality and security of the verifiable dynamic searchable encryption method.
- The method enables dynamic and verifiable searchable encryption.
- It uses updatable encryption technology to update the secret key.
- The key update process ensures chosen ciphertext security and ciphertext integrity security.
- Blockchain technology is utilized to verify search results publicly.
- The method enhances the practicality and security of the searchable encryption.
Potential applications of this technology:
- Cloud storage and data sharing platforms
- Secure communication systems
- Privacy-preserving data analysis and mining
Problems solved by this technology:
- Ensures the security and integrity of searchable encrypted data
- Allows verification of search results to determine the trustworthiness of the cloud server
- Addresses the challenge of updating the secret key in searchable encryption
Benefits of this technology:
- Enhanced security and privacy for data users and owners
- Improved trustworthiness of cloud servers
- Enables secure and verifiable search operations on encrypted data
Original Abstract Submitted
a dynamic and verifiable searchable encryption method based on updatable encryption and blockchain and a system thereof are provided. the method is suitable for the real scene where the data user and the data owner are not the same party. the method adopts the updatable technology to update the secret key in the searchable encryption, and the security of the key update could achieve chosen ciphertext security (cca) and ciphertext integrity (ctxt) security. in addition, the method is used to judge whether the cloud server is “trustworthy” by verifying the search results publicly based on the blockchain. therefore, the verifiable dynamic searchable encryption method based on updatable encryption and blockchain has been greatly improved in terms of practicability and security.
