"KEISUKE TANAKA,Fuyuki Kitagawa,Ryo Nishimaki,Takashi  Yamakawa","Adaptively Secure and Succinct Functional Encryption: Improving Security and Efficiency, Simultaneously.","39th Annual International Cryptology Conference�iCRYPTO 2019�j","Advances in Cryptology ? CRYPTO 2019",,,,"pp. 521-551",2019,Aug.