Electronic voting process using fair blind signatures
    1.
    发明申请
    Electronic voting process using fair blind signatures 审中-公开
    电子投票过程采用公平盲签名

    公开(公告)号:US20070192607A1

    公开(公告)日:2007-08-16

    申请号:US10591786

    申请日:2005-02-28

    CPC classification number: G07C13/00 H04L9/3257 H04L2209/463

    Abstract: In an electronic voting process, a voter (Vi) encrypts his vote (vi) according to the encryption scheme (ETM) of a tallier mix-net (50) used to tally up the votes cast. The voter (Vi) obtains on his encrypted vote, (xi), from an admin server module (20), a digital signature according to a fair blind signature scheme (FBSS). The encrypted vote (xi) is encrypted a second time, together with the unblinded digital signature (yi) thereof by the admin server, using the encryption scheme (EM) of a randomizing mix-net (40), to yield an output (ci), and the voter uses his own signature scheme (Si) to sign this, giving (σi). The voter sends an ID code and data including (ci,σi) to a bulletin board server (30). Discrepancies in this vote data can be detected and their origin traced by prompting the randomizing mix-net servers (40) to provide proofs of correctness, and using the signature-tracing mechanism of FBSS.

    Abstract translation: 在电子投票过程中,选民(Vi)根据加密方案(E TM TM)of of of of of of of of of of of of of of of of of of of of 一个更高的混合网(50)用于统计投票。 选民(V )从管理服务器模块(20)获得他的加密投票(x / i>),根据公平盲签名方案的数字签名 (FBSS)。 使用加密方案(E ),加密第二次加密的投票(x < i>)以及管理服务器的未遮蔽的数字签名(y i i i i) (40)的随机混合网(40)中,以产生输出(c),并且选民使用他自己的签名方案(S< i< SUB>)来签名,给(sigma i )。 投票人向公告板服务器(30)发送一个ID码和数据,其中包括(c> i,igma igma igma igma igma i i i i i i i i。。。。。。。。。。。。。。。。) 可以通过提示随机混合网络服务器(40)提供正确性证明,并使用FBSS的签名跟踪机制来检测这个投票数据的差异,并且它们的起始点。

    Fair blind signature process
    2.
    发明申请
    Fair blind signature process 失效
    公平盲签名过程

    公开(公告)号:US20050278536A1

    公开(公告)日:2005-12-15

    申请号:US11070033

    申请日:2005-03-02

    CPC classification number: H04L9/321 H04L9/3257 H04L2209/42

    Abstract: In a fair blind signature process, a user interacts with a signer in order to complete a 7-tuple (A,e,s,t,xu,x,m) such that Ae=a0α1x α2m α3u α4t α5s (mod n), where a0, a1, a2, a3, a4 and a5 and n are elements of the Signer's public key (PUBKs). During the signature-issuing phase the user (U) provides the signer (S) with a data element (α1x) encrypted according to a key (f) known to a trusted authority (TA), and this data element (α1x) is disclosed during transmission of the signed message. Similarly, the signed message is transmitted associated with second encrypted data comprising a second data element (α3xu) encrypted according to a key (f) known to the trusted authority (TA), and this second data element (α3xu) is disclosed to the Signer during the signature-issuing phase. Thus, the trusted authority (TA) can revoke the anonymity of the digital signature.

    Abstract translation: 在公平盲签名过程中,用户与签名者进行交互以完成7元组(A,e,s,t,x,x,x,m),使得A < α1α1α2α2α2α2α2α2 3 SUP> s (mod n),其中0 ,1 ,2 ,3 < SUB>,第4和第5和第n个是签名者公钥(PUBK )的元素。 在签名发布阶段期间,用户(U)向签名者(S)提供根据已知的密钥(f)加密的数据元素(α<1> x>), 可信管理机构(TA),并且在发送签名消息期间公开该数据元素(α<1> x )。 类似地,与第二加密数据相关联地发送签名的消息,该第二加密数据包括第二数据元素(α3,...,SUP) )根据可信管理机构(TA)已知的密钥(f)加密,并且该第二数据元素(α3) SUB2> )在签名发行阶段向签署者披露。 因此,可信管理机构(TA)可以撤销数字签名的匿名性。

    Fair blind signature process
    3.
    发明授权
    Fair blind signature process 失效
    公平盲签名过程

    公开(公告)号:US07584363B2

    公开(公告)日:2009-09-01

    申请号:US11070033

    申请日:2005-03-02

    CPC classification number: H04L9/321 H04L9/3257 H04L2209/42

    Abstract: In a fair blind signature process, a user interacts with a signer in order to complete a 7-tuple (A,e,s,t,xu,x,m) such that Ae=a0a1xa2ma3xua4ta5s (mod n), where a0, a1, a2, a3, a4 and a5 and n are elements of the Signer's public key (PUBKs). During the signature-issuing phase the user (U) provides the signer (S) with a data element (a1x) encrypted according to a key (f) known to a trusted authority (TA), and this data element (a1x) is disclosed during transmission of the signed message. Similarly, the signed message is transmitted associated with second encrypted data comprising a second data element (a3xu) encrypted according to a key (f) known to the trusted authority (TA), and this second data element (a3xu) is disclosed to the Signer during the signature-issuing phase. Thus, the trusted authority (TA) can revoke the anonymity of the digital signature.

    Abstract translation: 在公平盲签名过程中,用户与签名者进行交互以完成7元组(A,e,s,t,xu,x,m),使得Ae = a0a1xa2ma3x a4ta5s (mod n),其中a0,a1,a2,a3,a4和a5和n是签名者公钥(PUBK)的元素。 在签名发布阶段,用户(U)向签名者(S)提供根据可信管理机构(TA)已知的密钥(f)加密的数据元素(a1x),并且该数据元素(a1x)被公开 在传输签名的消息。 类似地,与第二加密数据相关联地发送签名的消息,该第二加密数据包括根据可信管理机构(TA)已知的密钥(f)加密的第二数据元素(a3x />),并且该第二数据元素 (a3x&lt; / sub2))在签名发布阶段向签署者公开。 因此,可信管理机构(TA)可以撤销数字签名的匿名性。

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