密码领域专用语言研究

Domain-Specific Language Research in the Field of Cryptography

摘要: 现有的通用编程语言，对于初学者来说，即使是编写简单循环结构的也有难度。为了使专业人员将工作重心集中在应用程序逻辑/业务模型上，领域专用编程语言(DSL)得到广泛应用。本文分析DSL的原理和方法，维护性问题；介绍一款国内首次提出的密码领域专用语言PCL，给出了其技术原理、基本功能，以及密码算法应用例子。在PCL之前，包括Cryptol语言在内，没有任何语言可以直观描述密码算法的逻辑结构。

Abstract: It is difficult for beginners to write a simple loop structure with the existing general-purpose programming language. Domain-specific programming languages (DSL) are widely used to enable professionals to focus their efforts on application logic/business models. This paper analyzes the principles and methods of DSL, its maintenance issues, and introduces a cryptographic domain-specific language called PCL that was firstly proposed in China. The technical principle, basic functions, and application examples of cryptographic algorithms are given. Prior to PCL, there were no languages to describe the logical structure of cryptographic algorithms visually, including the Cryptol language.