第122章 Here are a few options for a 4-8 character chapter title: 1. "密语的秘密" (Secrets of the Cipher) 2. "三元密语揭秘" (Unveiling the Three-Part

**122章：暗码之背**

赵弘润的眼睛仍然辨着兴趣，他问 Li Yuan：「这个置换法可以防止破译，但你的想法是如何确保密语的安全？」

Li Yuan笑着，「哎呀，这个问题很容易解决！」

赵弘润挑了一根经典的纸笔，「请你让我看看！」

Li Yuan smiled mischievously，「Okay！」

他拿出了一本小册子，「这是我创造的密语加密系统！」

赵弘润吃了一惊，「你是说你自己创造的？」

Li Yuan点头，「是的，我在研究暗码时发现了一些问题，我决定创造自己的加密系统！」

赵弘рун的眼睛睁大了，「这个加密系统是什么？」

Li Yuan的笑容更加狡猾，「这个是我称之为‘三元密语’的系统！」

赵弘润的眉毛挑起，「三元密语？」

Li Yuan开始解释三元密语的概念，「三元密语包括三部分：固定的密语、变幻的密语和特殊的密语！」

Zhao弘润的眼睛开始发Beam，「三个部分？」

Li Yuan nodded，「对的，这三个部分可以组成一个完整的加密系统！」

赵弘润的兴趣已经被激发，他向 Li Yuan询问更多关于三元密语的信息。

Li Yuan愉快地继续解释，那时候，赵弘润的助手 Wang Jian suddenly walked into the room，「 Prince Li, we have an urgent message from the Imperial Court！」

Li Yuan's eyes snapped back to reality， «What is it？」

Wang Jian bowed， «It seems that the rival emperor, the Emperor of the Eastern Wei, has sent an envoy to the capital, requesting a meeting with the Emperor！」

Li Yuan's expression turned serious， «That's unexpected... What does it mean？」

Wang Jian shrugged， «We don't know yet, but we need to be prepared！」

Zhao Hongrun's eyes narrowed， «This is suspicious... I think we need to investigate further！」

Li Yuan nodded， «Agreed... Wang Jian, please prepare a meeting with the envoy, but make sure to keep this confidential！」

Wang Jian bowed， «Yes, Prince Li... But, er, Prince Li, how can we keep this confidential？」

Li Yuan's smile returned， «That's an easy one... Let's use our new three-part cipher system！」

Wang Jian's eyes widened， «Your Highness, you mean...？」

Li Yuan nodded， «Yes, I mean we can encrypt all the information related to the meeting with the envoy, using our three-part cipher system！」

Wang Jian's face lit up， «That's a brilliant idea, Prince Li！」

As they discussed the plan, a sudden knock on the door interrupted them...

「Who dares to disturb us at this hour？」

A young eunuch, dressed in formal attire, entered the room， «I apologize, Your Highness... I was sent by the Imperial Court to deliver a message...」

Li Yuan's eyes sparkled with curiosity， «What is it？」

The eunuch bowed， «The Imperial Court has ordered you to attend a meeting with the Emperor... Tonight... At midnight... Alone...！」

Li Yuan's face darkened， «What's going on？」

The eunuch's eyes seemed to convey a hidden message， «You will find out at midnight...」