Abstract
This paper presented an efficient and secure identity-based encryption scheme. Compared to the previous scheme, it has the advantage of security or efficiency. This new scheme can achieve adaptive CCA2-security under BDH assumption with tight reduction. The construction was made by use of the ″Twin Diffie-Hellman″ technique proposed by Cash et al, only requiring one pairing computation during the encryption procedure.
| Original language | English |
|---|---|
| Pages (from-to) | 389-392 |
| Number of pages | 4 |
| Journal | Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University |
| Volume | 44 |
| Issue number | 3 |
| State | Published - Mar 2010 |
| Externally published | Yes |
Keywords
- Chosen cipher text security
- Identity-based encryption
- Random oracle model
- Tight reduction