Controlled Delegation in e-cheques Using Proxy Signatures
Controlled Delegation in e-cheques Using Proxy Signatures
复制标题
使用代理签名的电子支票受控委托
DOI：
10.1109/edoc.2007.34
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
P. Koulgi
中科院分区：
文献类型：
--
作者：
N. Sunitha;B. B. Amberker;P. Koulgi
代理签名方案允许一个用户将他/她的签名能力委托给称为代理签名者的另一用户，使得后者可以代表前者对消息进行签名。验证后，验证者确信原始签名者同意签名消息。我们提出了一个计划来控制将财务权力委托给代理签名人。该方案满足安全代理签名方案的基本要求。使用我们的方案，代理签名人将能够仅提交原始签名人有权获得的金额的电子支票。原始签名者或代理签名者的任何作弊行为均由验证者（即银行）识别。我们考虑了原始签名者的伪造、冒充和框架攻击来证明我们方案的安全性。任何基于离散日志的签名方案都可以用于对消息进行签名。这里我们使用数字签名算法（DSA）。
A proxy signature scheme allows one user to delegate his/her signing capability to another user called a proxy signer in such a way that the latter can sign messages on behalf of the the former. After verification the verifier is convinced of the original signer's agreement on the signed message. We have come up with a scheme to control delegation of financial power to a proxy signer. The scheme satisfies the basic requirements of a secure proxy signature scheme. Using our scheme the proxy signer will be able to submit an e-cheque for only the amount he is entitled to by the original signer. Any cheating by the original signer or the proxy signer is identified by the verifier i.e. the bank. We have considered Forgery by the original signer, Impersonating and framing attack to prove the security of our scheme. Any discrete log based signature scheme can be used to sign the messages. Here we use the digital signature algorithm (DSA).