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» Cryptanalysis of Some Group-Oriented Proxy Signature Schemes
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WISA
2005
Springer
13 years 10 months ago
Cryptanalysis of Some Group-Oriented Proxy Signature Schemes
Abstract. A proxy signature scheme allows an entity to delegate its signing power to another entity. Since the notion of proxy signatures was first introduced, many proxy signatur...
Je Hong Park, Bo Gyeong Kang, Sangwoo Park
INFORMATICALT
2000
93views more  INFORMATICALT 2000»
13 years 4 months ago
A Secure Nonrepudiable Threshold Proxy Signature Scheme with Known Signers
In the (t, n) proxy signature scheme, the signature, originally signed by a signer, can be signed by t or more proxy signers out of a proxy group of n members. Recently, an efficie...
Min-Shiang Hwang, Iuon-Chang Lin, Eric Jui-Lin Lu
ISPEC
2005
Springer
13 years 10 months ago
On the Security of Some Nonrepudiable Threshold Proxy Signature Schemes
A (t, n) threshold proxy signature scheme enables an original signer to delegate the signature authority to a proxy group of n member such that t or more than t proxy signers can ...
Zuowen Tan, Zhuojun Liu, Wang Mingsheng
COMPSEC
2004
99views more  COMPSEC 2004»
13 years 4 months ago
An improvement of nonrepudiable threshold proxy signature scheme with known signers
In a (t, n) threshold proxy signature scheme, which is a variant of the proxy signature scheme, the proxy signature key is shared among a group of n proxy signers delegated by the ...
Shiang-Feng Tzeng, Min-Shiang Hwang, Cheng-Ying Ya...
ACSW
2004
13 years 6 months ago
On the Security of Some Proxy Blind Signature Schemes
A proxy blind signature scheme is a digital signature scheme which combines the properties of proxy signature and blind signature schemes. Recently, Tan et al. proposed two proxy ...
Hung-Min Sun, Bin-Tsan Hsieh