Abstract
We propose a new anonymous fingerprinting scheme using Okamoto-Uchiyama cryptosystem[1]. In the previous schemes[2]-[4] Pfitzmann et al. applies bit commitment schemes, but they are not practical as the enciphering rate is extremely low. In order to improve the rate, we have applied the Okamoto-Uchiyama cryptosystem which homomorphic property makes it possible to embed an encrypted fingerprint in an encrypted digital contents. Exploiting the property ingenuously, we can achieve the same enciphering rate as that of Okamoto-Uchiyama cryptosystem in theory. The security can also be protected for both of a buyer and a merchant in our scheme.
| Original language | English |
|---|---|
| Pages (from-to) | 25-39 |
| Number of pages | 15 |
| Journal | Memoirs of the Faculty of Engineering, Kobe University |
| Volume | 49 |
| Publication status | Published - Nov 2002 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
An efficient protocol for anonymous fingerprinting. / Kuribayashi, Minoru; Tanaka, Hatsukazu.
In: Memoirs of the Faculty of Engineering, Kobe University, Vol. 49, 11.2002, p. 25-39.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - An efficient protocol for anonymous fingerprinting
AU - Kuribayashi, Minoru
AU - Tanaka, Hatsukazu
PY - 2002/11
Y1 - 2002/11
N2 - We propose a new anonymous fingerprinting scheme using Okamoto-Uchiyama cryptosystem[1]. In the previous schemes[2]-[4] Pfitzmann et al. applies bit commitment schemes, but they are not practical as the enciphering rate is extremely low. In order to improve the rate, we have applied the Okamoto-Uchiyama cryptosystem which homomorphic property makes it possible to embed an encrypted fingerprint in an encrypted digital contents. Exploiting the property ingenuously, we can achieve the same enciphering rate as that of Okamoto-Uchiyama cryptosystem in theory. The security can also be protected for both of a buyer and a merchant in our scheme.
AB - We propose a new anonymous fingerprinting scheme using Okamoto-Uchiyama cryptosystem[1]. In the previous schemes[2]-[4] Pfitzmann et al. applies bit commitment schemes, but they are not practical as the enciphering rate is extremely low. In order to improve the rate, we have applied the Okamoto-Uchiyama cryptosystem which homomorphic property makes it possible to embed an encrypted fingerprint in an encrypted digital contents. Exploiting the property ingenuously, we can achieve the same enciphering rate as that of Okamoto-Uchiyama cryptosystem in theory. The security can also be protected for both of a buyer and a merchant in our scheme.
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UR - http://www.scopus.com/inward/citedby.url?scp=24944459429&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:24944459429
VL - 49
SP - 25
EP - 39
JO - Memoirs of the Faculty of Engineering, Kobe University
JF - Memoirs of the Faculty of Engineering, Kobe University
SN - 0368-9638
ER -