Paper 2010/359

Identity Based Self Delegated Signature - Self Proxy Signatures

S. Sharmila Deva Selvi, S. Sree Vivek, S. Gopinath, and C. Pandu Rangan


A proxy signature scheme is a variant of digital signature scheme in which a signer delegates his signing rights to another person called proxy signer, so that the proxy signer can generate the signature of the actual signer in his absence. Self Proxy Signature (SPS) is a type of proxy signature wherein, the original signer delegates the signing rights to himself (Self Delegation), there by generating temporary public and private key pairs for himself. Thus, in SPS the user can prevent the exposure of his private key from repeated use. In this paper, we propose the first identity based self proxy signature scheme. We give a generic scheme and a concrete instantiation in the identity based setting. We have defined the appropriate security model for the same and proved both the generic and identity based schemes in the defined security model.

Available format(s)
Public-key cryptography
Publication info
Published elsewhere. Full version of the paper accepted in APWCS-2010
Identity Based CryptographySelf-Proxy SignaturesDelegationRandom Oracle Model.
Contact author(s)
sharmioshin @ gmail com
ssreevivek @ gmail com
2010-06-25: received
Short URL
Creative Commons Attribution


      author = {S. Sharmila Deva Selvi and S. Sree Vivek and S. Gopinath and C. Pandu Rangan},
      title = {Identity Based Self Delegated Signature - Self Proxy Signatures},
      howpublished = {Cryptology ePrint Archive, Paper 2010/359},
      year = {2010},
      note = {\url{}},
      url = {}
Note: In order to protect the privacy of readers, does not use cookies or embedded third party content.