RSA-TBOS Signcryption with Proxy Re-encryption

  title={RSA-TBOS Signcryption with Proxy Re-encryption},
  author={Varad Kirtane and C. Pandu Rangan},
  booktitle={IACR Cryptology ePrint Archive},
The recent attack on Apple iTunes Digital Rights Management [17] has brought to light the usefulness of proxy re-encryption schemes for Digital Rights Management. It is known that the use of proxy re-encryption would have prevented the attack in [17]. With this utility in mind and with the added requirement of non-repudiation, we propose the first ever signcryption scheme with proxy re-encryption that does not involve bilinear maps. Our scheme is called RSA-TBOS-PRE and is based on the RSA-TBOS… CONTINUE READING