2010 Fiscal Year Final Research Report
A Study of Traceability based on Digital Fingerprint
| Project/Area Number |
21760291
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Communication/Network engineering
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| Research Institution | Kobe University |
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Principal Investigator |
KURIBAYASHI Minoru Kobe University, 大学院・工学研究科, 助教 (50346235)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 電子指紋技術 / CDMA通信 / 結託攻撃 / 量子化誤差 / 結託耐性符号 / AWGN通信路 |
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| Research Abstract |
In this research, the actual traceability of spread-spectrum based fingerprinting scheme and collusion secure code with a constant and tiny false-positive probability has been analyzed both from the theoretical and experimental points of view. In the analysis, some constraints in attack strategies are relaxed to consider more realistic attack environment. Considering the effects caused by this attack, proper detectors that identify colluders involved in a pirated copy have been proposed to maximize the traceability. Furthermore, the procedure implementing the fingerprinting scheme in a cryptographic protocol has been proposed without seriously degrading the traceability and increasing the communication costs.
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