A public-key cryptosystem based on decision version of subset sum problem. - Yasuyuki Murakami; Shinsuke Hamasho; Masao Kasahara (ISITA, 2012)

A knapsack public-key cryptosystem using two random sequences. - Yasuyuki Murakami; Shinsuke Hamasho; Masao Kasahara (ISITA, 2014)

A Note on Security of Public-Key Cryptosystem Provably as Secure as Subset Sum Problem. - Shinsuke Hamasho; Yasuyuki Murakami (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2014)