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- New schemes not only accomplish proxy signature efficiently, but also are secure against the original signer's forgery. 新方案不仅能正确有效地完成代理签名,而且能够抵抗住原始签名人的伪造攻击。
- Using anyone of the forgery attacks,original signer can produce a valid proxy signature. 利用这两种伪造攻击的任何一种,原始签名者都能够伪造出一个有效的代理数字签名。
- In this paper, we propose several new schemes which can solve the problem of the original signer's forgery in some proxy signature schemes. 本文针对在一些代理签名方案中存在原始签名人伪造的问题,提出了几种新的代理签名方案。
- In the scheme, original signer can limit the number of proxy signature and recall the right of proxy signature as the valid time past. 原始签名者在代理签名有效期内,能限制代理签名者的代理签名次数,当代理签名有效期过后,能收回代理签名权。
- In this scheme,the key updating algorithm is used by the original signer,so the security of the proxy signature key is promoted to a higher level. 该方案将密钥更新算法应用在原始签名者计算过程中,更有效增强了代理签名密钥的安全性。
- Besides having the basic properties of the proxy signature, the new scheme prevents proxy misuse, original signer’s forgery and public key substitution attack. 此外,该方案不仅满足代理签名的基本性质,还避免了代理权滥用、原始签名人伪造和公钥替换攻击。
- Multi-proxy signature is a special digital signature technology, it means an original signer can authorize a group of proxy signers to sign on behalf of him. 摘要多代理签名是一种特殊的数字签名技术,它允许一个原始签名人授权给一组代理签名人,让他们替代行使签名权。
- In order to protect advantages of the original signer and the proxy signer,an ID-based designated-verifier proxy signature scheme without trusted PKG is proposed for the first time. 为了解决无条件信任PKG带来的问题,保护原始签名人和代理签名人的利益,首次提出了一种基于身份无可信中心的指定验证人代理签名方案。
- According to the problems of proxy revocation, original signer’s forgery and proxy misuse in proxy signature, a secure proxy blind signature scheme with proxy revocation is proposed. 该文针对目前代理签名中普遍存在的代理权撤销难、原始签名人伪造和代理权滥用等问题,提出一个新的可收回代理权的代理盲签名方案。
- How ever, we will show that their modification scheme is also insecure.Any original signer or proxy signer can forge a valid proxy signature, and the delegation time can he revised. 本文指出,周红生等的方案也是不安全的,任一原始签名人或任一代理人都能生成有效的代理多重签名,而且可以任意修改代理签名的期限。
- Furthermore, the proxy signer’s proxy signing capability can be revoked if the original signer needs. 另外,该方案能根据原始签名人的需要,撤消代理签名人的代理签名权。
- With proxy signature, an original signer can entrust his signing authority to a proxy signer. 摘要在代理签名方案中,原始签名人能将其数字签名权力委托给代理签名人。
- Proxy signature scheme allows an original signer to delegate his signing capability to a proxy signer. 代理签名允许原始签名者将自己的签名权委托给代理签名人。
- Proxy signature allows an original signer to delegate his/her signing capability to a proxy signer such that the proxy signer can sign messages on behalf of the original signer. 顾名思义,代理签名让原始签名者可以将其数字签名权力委托给代理签名者,使其能够代理原始签名者签发指定的数字消息;
- Proxy signature allows an original signer to delegate his/her signing power to a proxy signer such that the proxy signer can sign messages on behalf of the original signer. 代理签名是指原始签名人将签名权力委托给代理签名人,由代理签名人代表原始签名人对消息进行签名。
- ORIGINAL SIGNED COMMERCIAL INVOICE NOT EXCEEDING THIS CREDIT AMOUNT PREPARED IN THE NAME FO OPENERS IN OCTUPLICATE. 正本、签章的商业发票一式十份,以开证人为抬头人,发票金额不超过信用证金额。
- FOR FAX APPLICATION, DO NOT SEND THE ORIGINAL SIGNED FORM BY POST IN ORDER TO AVOID DUPLICATION. 凡以传真申请,请勿将此正本表格寄回,以免重复。
- Original signed OTI/NVOCC bond(s) will be processed by China Freight with the FMC. 经签署的OTI/NVOCC保证金原件将由中国运费网跟联邦海事委员会联系(FMC)进行处理。
- The ORIGINAL signed forms must be returned to us by either post, UPS, FEDEX, TNT or your choice no later than June 1, 2007. 回答:正本签名表格必须在2007年6月1日前用邮件寄还给我们,可以用UPS、FEDEX、TNT,或其它你们选择的快递公司。
- The property revert to its original owner in1998. 财产于1998年将归还原所有人。