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A PKI System for Detecting the Exposure of a User’s Secret Key

  • Conference paper
Public Key Infrastructure (EuroPKI 2006)

Part of the book series: Lecture Notes in Computer Science ((LNSC,volume 4043))

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Abstract

Dodis et al proposed a key-insulated signature scheme in 2003. The scheme can minimize the damage caused by the secret key’s exposure but can not protect the user from the secret key’s exposure perfectly. We propose a PKI system which can detect immediately even a single illegitimate signature due to the exposure of a user’s secret key. The system uses the one-time hash chain based on NOVOMODO and can prevent the users from compromising the secret key more perfectly and effectively than the key-insulated signature scheme.

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References

  1. Micali, S.: NOVOMODO; Scable Certificate Validation And Simplified PKI Management. In: 1st Annual PKI Research Workshop Preproceedings, pp.15–25 (2002)

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  2. Dodis, Y., Katz, J., Xu, S., Yung, M.: Key-Insulated Public Key Cryptosystems. In: Knudsen, L.R. (ed.) EUROCRYPT 2002. LNCS, vol. 2332, pp. 65–82. Springer, Heidelberg (2002)

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  3. Dodis, Y., Katz, J., Xu, S., Yung, M.: Strong Key-Insulated Signature Schemes. In: Desmedt, Y.G. (ed.) PKC 2003. LNCS, vol. 2567, pp. 130–142. Springer, Heidelberg (2002)

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  4. Lee, Y., Kim, I.J., Kim, S., Won, D.H.: A Method for Detecting the Exposure of OCSP Responder’s Session Private Key in D-OCSP-KIS. In: Chadwick, D., Zhao, G. (eds.) EuroPKI 2005. LNCS, vol. 3545, pp. 215–226. Springer, Heidelberg (2005)

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  5. Lee, Y., Ahn, J., Kim, S., Won, D.: A Method for Detecting the Exposure of an OCSP Responder’s Private Key using One-Time Hash Value. IJCSNS International Journal of Computer Science and Network Security 5(8), 179–186 (2005)

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Author information

Authors and Affiliations

  1. Information Security Group, Sungkyunkwan University, Korea

    Younggyo Lee, Seungjoo Kim & Dongho Won

  2. Department of Computer Science, Doowon Technical College, Korea

    Jeonghee Ahn

Authors
  1. Younggyo Lee
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  2. Jeonghee Ahn
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  3. Seungjoo Kim
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  4. Dongho Won
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Editor information

Editors and Affiliations

  1. Dip. di Automatica ed Informatica, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129, Turin, Italy

    Andrea S. Atzeni

  2. Dip. Di Automatica e Informatica, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy

    Antonio Lioy

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© 2006 Springer-Verlag Berlin Heidelberg

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Lee, Y., Ahn, J., Kim, S., Won, D. (2006). A PKI System for Detecting the Exposure of a User’s Secret Key. In: Atzeni, A.S., Lioy, A. (eds) Public Key Infrastructure. EuroPKI 2006. Lecture Notes in Computer Science, vol 4043. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11774716_20

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  • DOI: https://doi.org/10.1007/11774716_20

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-35151-1

  • Online ISBN: 978-3-540-35152-8

  • eBook Packages: Computer ScienceComputer Science (R0)

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