Paper 2021/380

Certificateless Designated Verifier Proxy Signature

Cholun Kim


Proxy signature (PS) is a kind of digital signature, in which an entity called original signer can delegate his signing rights to another entity called proxy signer. Designated verifier signature (DVS) is a kind of digital signature where the authenticity of any signature can be verified by only one verifier who is designated by the signer when generating it. Designated verifier proxy signature (DVPS) combines the idea of DVS with the concept of proxy signature (PS) and is suitable for being applied in many scenarios from e-tender, e-voting, e-auction, e-health and e-commerce, etc. Many DVPS schemes have been proposed and Identity-based DVPS (IBDVPS) schemes have also been discussed. Certificateless public-key cryptography (CL-PKC) is acknowledged as an appealing paradigm because there exists neither the certificate management issue as in traditional PKI nor private key escrow problem as in Identity-based setting. A number of certificateless designated verifier signature (CLDVS) schemes and many certificateless proxy signature (CLPS) schemes have been proposed. However, to the best of our knowledge, the concept of Certificateless Designated Verifier Proxy Signature (CLDVPS) has not been appeared in the literature. In this paper, we formalize the definition and the security model of CLDVPS schemes. We then construct the first CLDVPS scheme and prove its security.

Available format(s)
Public-key cryptography
Publication info
Preprint. MINOR revision.
certificateless public-key cryptographydesignated verifier proxy signaturerandom oracle modelprovable securitybilinear pairings.
Contact author(s)
cu kim1019 @ ryongnamsan edu kp
2021-03-22: received
Short URL
Creative Commons Attribution


      author = {Cholun Kim},
      title = {Certificateless Designated Verifier Proxy Signature},
      howpublished = {Cryptology ePrint Archive, Paper 2021/380},
      year = {2021},
      note = {\url{}},
      url = {}
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