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Paper Title
A New Approach to Proxy Signcryption Scheme using Private key Verifiability
  Ashis Raj,  Himanshu Agrawal

Basically Proxy Signcryption scheme is the combination of proxy signature and encryption. Here proxy(agent) perform the work(computationally expensive) needed by the original sender having low computational power, i.e. the signcryption done by the proxy server on behalf of intent user. This paper describes how computationally weak user can enjoy the high level of security with the help of computationally strong and trusted third party(proxy). Here, we present private key verifiable proxy signcryption algorithm for achieving authentication, confidentiality and integrity of the message through an unsecured channel such as open computer network or public network(internet). The proposed scheme is based on intractability of discrete logarithm and factorization algorithm(which is NP-Hard). In the proposed scheme the connection between original sender and proxy may be unsecured channel. The new algorithm is more strong, robust and can give complete protection to original sender against the adaptive attacker. Verification is needed in case of dispute or maintaining Non-Repudiation.

Keywords- Signcryption, proxy signcryption, SHA-1 algorithm, factorization problem, and Discrete Logarithm Problem (DLP).
Publication Details
Unique Identification Number - IJEDR1601128
Page Number(s) - 745-748
Pubished in - Volume 4 | Issue 1 | March 2016
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)
Cite this Article
  Ashis Raj,  Himanshu Agrawal,   "A New Approach to Proxy Signcryption Scheme using Private key Verifiability", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.4, Issue 1, pp.745-748, March 2016, Available at :http://www.ijedr.org/papers/IJEDR1601128.pdf
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