海巡署任務多樣且特殊，如何安全的運用無線通訊網路將各類情報提供第1 線勤務執行單位，或將前端訊息回傳後端指揮控制中心，進行決策分析，為提升海巡署各項任務執行效能之重要關鍵。本文中我們提出一個利用橢圓曲線密碼為概念的新方法。我們的方法具有除了符合機密性、完整性等基本安全需求外，同時密文具備雪崩效應效果。本研究具有以下五項優點：(1)建置可快速及安全的自我身分認證機制。(2)通訊階段不需要線上作業的憑證中心參與認證。(3)符合機密性、完整性、鑑別性及不可否認性等基本安全需求。(4)密文中混入假資料增加第三者破解密文困難。(5)密文具備雪崩效應效果。

The task of Coast Guard is diverse and special, and how to safely use wireless communication network will provide various types of information service execution, and transmit information to command and control center. The key task execution will more efficient by the decision
analysis, which enhances the performance of Coast Guard. In this paper, we propose a the new method using Elliptic Curve Cryptography. Our method meets not only the confidentiality,integrity, security and other basic needs, but also the effect of avalanche. This study has the following five advantages: (1) building fast and safe self-authentication mechanism. (2) not to need the certification of online centers in communication phase. (3) complying with the confidentiality, integrity, authenticity and non-denial of other basic security needs. (4) mixing
with false information to increase the difficulties of deciphering. (5) effecting ciphertext with the effect of avalanche.