Abstract | ||
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Partially blind signature schemes are an extension of blind signature schemes that allow a signer to explicitly include necessary information (expiration date, collateral conditions, or whatever) in the resulting signatures under some agreement with the receiver. This paper formalizes such a notion and presents secure and efficient schemes based on a widely applicable method of obtaining witness indistinguishable protocols. We then give a formal proof of security in the random oracle model. Our approach also allows one to construct secure fully blind signature schemes based on a variety of signature schemes. |
Year | Venue | Keywords |
---|---|---|
2000 | CRYPTO | provably secure partially blind,formal proof,expiration date,collateral condition,blind signature scheme,witness indistinguishable protocol,applicable method,signature scheme,random oracle model,efficient scheme,necessary information,blind signature,provable security |
Field | DocType | Volume |
Computer science,Cryptography,Random oracle,Digital signature,Theoretical computer science,Expiration date,Blind signature,Schnorr signature,Formal proof | Conference | 1880 |
ISSN | ISBN | Citations |
0302-9743 | 3-540-67907-3 | 109 |
PageRank | References | Authors |
3.97 | 17 | 2 |
Name | Order | Citations | PageRank |
---|---|---|---|
Masayuki Abe | 1 | 111 | 8.40 |
Tatsuaki Okamoto | 2 | 5408 | 521.96 |