Collusion-free public-key traitor tracing scheme
All the existing traitor tracing schemes can trace at least a traitor when the number of traitors is not beyond a certain predefined value. However , how to prevent traitors from colluding a valid key is a open problem. A new traitor tracing scheme was presented, in which traitors can not get a vali...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2006-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74660016/ |
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| Summary: | All the existing traitor tracing schemes can trace at least a traitor when the number of traitors is not beyond a certain predefined value. However , how to prevent traitors from colluding a valid key is a open problem. A new traitor tracing scheme was presented, in which traitors can not get a valid key by conspiracy, no matter how many traitors there were because each user’s decryption key was independent of any others. Further, our scheme can determine a traitor in speediness and accuracy, thus it can reach a better determent to those potential bad users. Meanwhile, compared with present schemes, this scheme has a higher transmission efficiency. |
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| ISSN: | 1000-436X |