Server assisted signatures revisited
TOPICS IN CRYPTOLOGY - CT-RSA 2004, PROCEEDINGS, cilt.2964, ss.143-156, 2004 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 2964
- Basım Tarihi: 2004
- Dergi Adı: TOPICS IN CRYPTOLOGY - CT-RSA 2004, PROCEEDINGS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.143-156
- Anahtar Kelimeler: server-assisted signature, one-time signature, digital signature, pervasive computing
- Orta Doğu Teknik Üniversitesi Adresli: Evet
Özet
One of the main objectives of server-assisted computation is to reduce the cost of generating public key signatures for ordinary users with their constrained devices. On the other hand, based on nothing more than a one-way function, one-time signatures provide an attractive alternative to public key signatures. This paper revisits server assisted computation for digital signatures to show server assisted one-time signature (SAOTS) that combines the benefits of these two efficiency solutions. The proposed protocol turns out to be a more computational and round-efficient protocol than previous verifiable-server approaches. In addition, SAOTS offers other advantages like verification transparency, getting rid of public key operations for the ordinary user and proving the server's cheating without storing the signatures.