Method to generate, verify and deny an undeniable signature
    1.
    发明授权
    Method to generate, verify and deny an undeniable signature 有权
    生成,验证和拒绝不可否认签名的方法

    公开(公告)号:US07461261B2

    公开(公告)日:2008-12-02

    申请号:US10777661

    申请日:2004-02-13

    摘要: The aim of the invention is to propose the generation, verification and denial of an undeniable signature which has a size smaller than the currently available undeniable signatures, i.e. less than 80 bits. This aim is achieved by the method to generate an undeniable signature (y1, . . . , yt) on a set of data, this method comprising the following steps: (1) transforming the set of data (m) to a sequence of a predetermined number (t) of blocks (x1, . . . , xt), these blocks being members of an Abelian group, this transformation being a one way function, and (2) applying to each block (xi) a group homomorphism (f) to obtain a resulting value(yi), in which the number of elements of the initial group (G) is larger than the number of elements (d) of the destination group (H).

    摘要翻译: 本发明的目的是提出一种不可否认的签名的生成,验证和拒绝,其大小小于当前可用的不可否认的签名,即小于80比特。 该目的通过在一组数据上生成不可否认签名(y1,...,yt)的方法来实现,该方法包括以下步骤:(1)将数据集(m)变换为 预定数量(t)的块(x1,...,xt),这些块是阿贝尔组的成员,该变换是单向函数,并且(2)应用于每个块(xi)组同态(f )以获得其中初始组(G)的元素的数量大于目的地组(H)的元素(d)的数量的结果值(yi)。