Research Article
Dual-Server Identity-Based Encryption with Authorized Equality Test for IoT Data in Clouds
Table 4
Comparison of communication costs.
| | | Our DS-IBE-AET scheme | Zhao et al.‘s scheme [9] |
| | User private key | 3 | — | | Server private key | | — | | Ciphertext | 2 + + | 2 + + | | Authorization | 4 | 2 + 2 | | Internal test result | 3 | 3 |
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