Journal of Information Processing Systems

  • 제8권4호
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  • Pages.567-574
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  • 2012
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  • 1976-913X(pISSN)
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  • 2092-805X(eISSN)
한국정보처리학회 (Korea Information Processing Society)
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A Strong Designated Verifiable DL Based Signcryption Scheme

  • Mohanty, Sujata (Dept. of Computer Science and Engineering, National Institute of Technology) ;
  • Majhi, Banshidhar (Dept. of Computer Science and Engineering, National Institute of Technology)
  • 투고 : 2011.10.28
  • 심사 : 2012.08.16
  • 발행 : 2012.12.31
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초록

This paper presents a strong designated verifiable signcryption scheme, in which a message is signcrypted by a signcryptor and only a specific receiver, who called a "designated verifier", verifies it using his own secret key. The scheme is secure, as an adversary can not verify the signature even if the secret key of the signer is compromised or leaked. The security of the proposed scheme lies in the complexity of solving two computationally hard problems, namely, the Discrete Logarithm Problem (DLP) and the Integer Factorization Problem (IFP). The security analysis of the scheme has been done and it is proved that, the proposed scheme can withstand an adaptive chosen ciphertext attack. This scheme can be very useful in organizations where there is a need to send confidential documents to a specific recipient. This scheme can also be applicable to real life scenarios, such as, e-commerce applications, e-banking and e-voting.

키워드

참고문헌

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