公开(公告)号：US07877331B2

公开(公告)日：2011-01-25

申请号：US11851265

申请日：2007-09-06

申请人： Ahned Ibrahim Al-Herz ,  Mohammad K. Ibrahim

发明人： Ahned Ibrahim Al-Herz ,  Mohammad K. Ibrahim

IPC分类号： G06Q20/00

CPC分类号： H04L9/3234 ,  G06Q20/108 ,  G06Q20/3672 ,  G06Q20/3674 ,  G06Q20/3678 ,  G06Q20/382 ,  G06Q20/401 ,  G06Q30/0222 ,  G06Q40/00 ,  H04L9/006 ,  H04L9/3257 ,  H04L2209/42 ,  H04L2209/56

摘要： Digital cash token protocols use a combination of blind digital signatures and pseudonym authentication with at least two pairs of public and private keys. A user is provided with one master pair of private and public keys and as many pseudonym pairs of private and public keys as desired. The resulting digital cash token based hybrid protocols combine the advantages of blind digital signature and pseudonym authentication. Blind digital signatures based on the master pair of keys are used to withdraw digital cash from the user's bank account under the user's real identity. A pseudonym pair of keys is used for converting digital cash into digital cash tokens by a digital cash issuer. All pseudonyms can be used for spending the digital cash tokens. These protocols ensure anonymity when withdrawing digital cash from the user's account under the user's real identity in addition to providing pseudonym authentication when spending digital cash tokens under a pseudonym.

摘要翻译： 数字现金令牌协议使用盲目数字签名和假名认证与至少两对公钥和私钥的组合。 为用户提供一对专用和公共密钥以及根据需要的私钥和公钥的多个假名对。 所得到的基于数字现金令牌的混合协议结合了盲数字签名和假名认证的优点。 基于主对密钥的盲人数字签名用于根据用户的真实身份从用户的银行帐户提取数字现金。 一对假键对用于通过数字现金发行商将数字现金转换为数字现金令牌。 所有的假名可用于支付数字现金令牌。 这些协议确保在用户真实身份下从用户帐户中提取数字现金时匿名，除了在以假名号码使用数字现金令牌的情况下提供假名认证。