A Revocable Online-Offline Certificateless Signature Scheme without Pairing. - Karthik Abinav; Saikrishna Badrinarayanan; C. Pandu Rangan; S. Sharmila Deva Selvi; S. Sree Vivek; Vivek Krishna Pradhan (IACR Cryptol. ePrint Arch., 2013)