【摘要】 NAEP是对NTRU加密体制的改进,其安全性更高。潜信道是一种在密码协议中建立的秘密信道,而如何能封闭它是一个值得关注的问题。已有在公钥体制中建立潜信道和封闭它的强方法和弱方法,而文中发现可以在NAEP体制中建立这样的潜信道,即封闭该潜信道的方法既不是强方法也不是弱方法,而是介于两者之间的新方法,称为中度方法。更多还原

【Abstract】 The NAEP encryption scheme, a modified vesion of the NTRU scheme, is of an even higher security. The subliminal channel is a secret channel constructed in the cryptography protocol, and it is important to free the subliminal channel. There are both strong and weak subliminal-free methods in the subliminal constructed in the encryption scheme. In this paper, the new subliminal channel in the NAEP scheme is constructed, which has neither the strong nor weak subliminal-free method. And this new method lies in between the strong and weak methods, called the medium method.更多还原