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Collusion-Resistant Identity-Based Proxy Re-Encryption Without Random Oracles
| Content Provider | Semantic Scholar |
|---|---|
| Author | Jo, Jungbok Lee, Hoon-Jae |
| Copyright Year | 2015 |
| Abstract | In an identity-based proxy re-encryption scheme, a semi-trusted proxy can convert a ciphertext under Alice’s public identity into a ciphertext for Bob. The proxy does not know the secret key of Alice or Bob, and also does not know the plaintext during the conversion. In identity-based proxy re-encryption, the collusion of the proxy and a delegatee may result in the decryption of ciphertext for delegator. In this paper, we present a new scheme which can avoid the collusion of proxy and delegatee. Our scheme improves the scheme of Chu and Tzeng while inheriting all useful properties such as unidirectionality and non-interactivity. In our scheme, we get the security by using added secret parameter and change the secret key and re-encryption key. Our sheme is secure against ChosenCiphertext Attack (CCA) and collusion attack in the standard model. |
| Starting Page | 337 |
| Ending Page | 344 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.14257/ijsia.2015.9.9.29 |
| Volume Number | 9 |
| Alternate Webpage(s) | http://www.sersc.org/journals/IJSIA/vol9_no9_2015/29.pdf |
| Alternate Webpage(s) | https://doi.org/10.14257/ijsia.2015.9.9.29 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
