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Proxy signature attack

Author: WangXingHua
Tutor: XinXiaoLong
School: Northwestern University
Course: Computational Mathematics
Keywords: Elliptic curve discrete logarithm RSA Integer factorization Agreement Agent protection signature
CLC: TN918.1
Type: Master's thesis
Year: 2011
Downloads: 5
Quote: 0
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Abstract


Discovered through in-depth study of the literature in this article , the proxy signature scheme in the literature in this article there are three types of attacks . First , the original signer attack , that is, in a proxy signature authorized person to master commissioned by the private key , may be posing as legitimate agents to generate a valid proxy signature thereby deceive verifier . In response to these attacks , we propose a specific attack scenarios , and thus has been improved on the original scheme proposed protected signature scheme based on elliptic curve discrete logarithm problem (ECDLP) agent . Second the proxy signer unspecified attack any third party without original signer authorizes attacker can conduct effective agent to protect the signature . In response to this attack , Zhou et al RSA scheme to improve the program. Forged agreement attack , after the formation of an effective agent protection signature attack by forging agreements , the agent 's legitimate signature forgery agent protection signature . In response to this attack , we propose a specific attack algorithm proposed new proxy protected signature scheme based on RSA and the integer factor decomposition , and thus for the attack algorithm . Final analysis to improve the security of the scheme . Through analysis , the new scheme can effectively prevent the attacks , greatly enhance security to any person (including the original signer ) can generate valid proxy protection signature legitimate signatures rights protection agent .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Confidentiality of communications and communications security > Theory
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