Name
Title | ||
|---|---|---|
Provably secure threshold public-key encryption with adaptive security and short ciphertexts |
Abstract | ||
|---|---|---|
Threshold public-key encryption is a cryptographic primitive allowing decryption control in group-oriented encryption applications. Existing TPKE schemes suffer from long ciphertexts with size linear in the number of authorized users or can only achieve non-adaptive security, which is too weak to capture the capacity of the attackers in the real world. In this paper, we propose an efficient TPKE scheme with constant-size ciphertexts and adaptive security. Security is proven under the decision Bilinear Diffie-Hellman Exponentiation assumption in the standard model. Then we extend our basic construction with efficient trade-offs between the key size and the ciphertext size. Finally, we illustrate improvements to transmit multiple secret session keys in one session with almost no extra cost. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1016/j.ins.2012.04.038 | Inf. Sci. |
Keywords | Field | DocType |
tpke scheme,non-adaptive security,short ciphertexts,efficient trade-offs,constant-size ciphertexts,provably secure threshold public-key,efficient tpke scheme,group-oriented encryption application,ciphertext size,key size,adaptive security,long ciphertexts,access control | Multiple encryption,Ciphertext indistinguishability,Computer science,Computer security,Deterministic encryption,Attribute-based encryption,Computer network,Encryption,Probabilistic encryption,40-bit encryption,56-bit encryption | Journal |
Volume | ISSN | Citations |
210, | 0020-0255 | 13 |
PageRank | References | Authors |
0.56 | 34 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Bo Qin | 1 | 422 | 30.44 |
| Qianhong Wu | 2 | 1013 | 66.94 |
| Lei Zhang | 3 | 2533 | 164.29 |
| Oriol FarríS | 4 | 13 | 0.90 |
| Josep Domingo-Ferrer | 5 | 3231 | 404.42 |