Presentation 2005-03-18
A Note on Signature Schemes Associated with Universal Re-signcryption
Kohei TATARA, Kouichi SAKURAI,
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Abstract(in English) Today, some participants in communication networks take an anonymity into consideration. There is the possibility that an attacker, which can intercept all of the messages in the network, threaten the anonymity of sender and receiver. Recently, Golle et al. proposed a new re-encryption scheme, called universal re-encryption. In this scheme, re-encryption algorithm does not require any public information of receiver associated with a ciphertext. The subject who carries out re-encryption can only knows relationships between original and re-encrypted ciphertext. The anonymity is based on the semantic securecy. In this paper, we study the signature schemes associated with universal re-encryption, and touch the security.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Universal Re-encryption / Digital Signature / Anonymity / Unlinkability
Paper # IT2004-82,ISEC2004-138,WBS2004-197
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Conference Information
Committee ISEC
Conference Date 2005/3/11(1days)
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Registration To Information Security (ISEC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Note on Signature Schemes Associated with Universal Re-signcryption
Sub Title (in English)
Keyword(1) Universal Re-encryption
Keyword(2) Digital Signature
Keyword(3) Anonymity
Keyword(4) Unlinkability
1st Author's Name Kohei TATARA
1st Author's Affiliation Graduate School of Information Science and Electrical Engineering, Kyushu University()
2nd Author's Name Kouichi SAKURAI
2nd Author's Affiliation Faculty of Information Science and Electrical Engineering, Kyushu University
Date 2005-03-18
Paper # IT2004-82,ISEC2004-138,WBS2004-197
Volume (vol) vol.104
Number (no) 732
Page pp.pp.-
#Pages 4
Date of Issue