Title :
Password-protected secret-sharing schemes without random oracles
Author :
Hasegawa, S. ; Isobe, S. ; Iwazaki, J.-Y. ; Koizumi, E. ; Shizuya, H.
Author_Institution :
Grad. Sch. of Inf. Sci., Tohoku Univ., Sendai, Japan
Abstract :
We propose a password-protected secret sharing scheme which is provably secure without the random oracles. Three tools enable us to achieve this property: the IND-CCA secure threshold encryption scheme of Libert and Yung, the linear encryption scheme and the technique for constructing a simulation-sound non-interactive zero knowledge proof for any language in NP.
Keywords :
authorisation; cryptographic protocols; IND-CCA secure threshold encryption scheme; NP; PPSS; linear encryption scheme; password-protected secret-sharing schemes; simulation-sound noninteractive zero knowledge proof; Encryption; Games; Protocols; Servers; Zinc; decision linear problem; password-protected secret sharing; simulation-sound non-interactive zero knowledge proof; standard model; subgroup decision problem;
Conference_Titel :
Information Theory and its Applications (ISITA), 2014 International Symposium on
Conference_Location :
Melbourne, VIC
