Research Article
BFR-SE: A Blockchain-Based Fair and Reliable Searchable Encryption Scheme for IoT with Fine-Grained Access Control in Cloud Environment
Table 1
The symbols and abbreviations involved in this paper.
| No. | Symbol | Description |
| 1 | DO | The data owner | 2 | DU | The data user | 3 | SESP | The searchable encryption service provider | 4 | MSK | System master key | 5 | PK | System public parameters | 6 | | An asymmetric encryption algorithm like ECC | 7 | | A pair of keys for algorithm | 8 | | A pair of keys for an algorithm like ECDSA | 9 | | All general attribute set | 10 | | The attributes set of a specific DU | 11 | | Access policy | 12 | | The private attribute key of DU whose attributes set is | 13 | FID | The set of file identities | 14 | KW | The set of keywords | 15 | CKW | The set of ciphertext for keywords | 16 | | The set of indices between keywords and data files | 17 | CI | The set of ciphertext for indices | 18 | AI | Auxiliary information | 19 | TOK | Search token | 20 | COMM | DO’s commitment to his search request |
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