2010 Fiscal Year Final Research Report
Asecret sharing scheme for multiple associating group key management in secure group communications
| Project/Area Number |
21700072
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Computer system/Network
|
|---|
| Research Institution | Nagoya Institute of Technology |
|---|
Principal Investigator |
SHIRAISHI Yoshiaki Nagoya Institute of Technology, 工学研究科, 准教授 (70351567)
|
|---|
| Project Period (FY) |
2009 – 2010
|
| Keywords | グループ通信 / 鍵管理 / 多重帰属 / 秘密分散 |
|---|
| Research Abstract |
Shared file is encrypted and stored in server then group member shares its decryption key as an implementation of secure group communication. User has the same number of group decryption key as multiple associating groups in the communication. This research proposes a group file sharing protocol and group management protocols using ElGamal threshold cryptosystem and secret sharing scheme, which can decrypt file decryption key shared in any associated groups by one group key.
|
