Research Article
A Multiuser Ciphertext Search Scheme Based on Blockchain and SGX
Table 1
Notations and descriptions.
| Notations | Descriptions |
| (PKo, SKo) | Public/secret key pair of A | (PKu, SKu) | Public/secret key pair of B | (PKsgx, SKsgx) | Public/secret key pair of Enclave | K | Symmetric encryption key of A | M | A plaintext data collection | C | A ciphertext data collection | H | A ciphertext data hash collection | Set | The outsourced collection | CT | The data authorization request | Tr | The Trapdoor |
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