http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112732695-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06Q20-3829 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F16-215 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F21-6218 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F16-2246 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06Q40-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F21-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G06F16-27 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F21-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06Q40-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F21-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F16-27 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F16-215 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06Q20-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06F16-22 |
| filingDate | 2021-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112732695-B |
| titleOfInvention | Cloud storage data security deduplication method based on block chain |
| abstract | The invention discloses a block chain-based cloud storage data security duplicate removal method, which is characterized in that a generated file label is sent to a cloud storage service provider for repeated detection; if the result is file repetition, the user generates a file repeated storage log, and executes an intelligent contract through an intelligent contract management center to integrate the storage log into a transaction and upload the transaction to a block chain for storage, so that the current storage state information is safely stored; if the result is that the file is not repeated, the key server generates a permission key of the user by constructing a role hierarchical hash tree, performs safe encryption operation on data by using the permission key, and uploads a ciphertext to a cloud storage server for storage; and generating a file unrepeated storage log and transaction with the assistance of the intelligent contract management center. The method and the system can realize safe duplication removal and storage of the data of the cloud user, resist stealing and tampering malicious behaviors of a cloud storage service provider, greatly reduce the computing overhead of the cloud storage server and ensure privacy safety. |
| priorityDate | 2021-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419482457 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID193653 |
Total number of triples: 24.