Today, the size of a multimedia file is increasing day by day from gigabytes to terabytes or even petabytes, mainly because of the evolution of a large amount of real-time data. As most of the multimedia files are transmitted through the internet, hackers and attackers try to access the users’ personal and confidential data without any authorization. Thus, maintaining a strong security technique has become a significant concerned to protect the personal information. Deoxyribonucleic Acid (DNA) computing is an advanced field for improving security, which is based on the biological concept of DNA. A novel DNA-based encryption scheme is proposed in this article for protecting multimedia files in the cloud computing environment. Here, a 1024-bit secret key is generated based on DNA computing and the user's attributes and password to encrypt any multimedia file. To generate the secret key, the decimal encoding rule, American Standard Code for Information Interchange value, DNA reference key, and complementary rule are used, which enable the system to protect the multimedia file against many security attacks. Experimental results, as well as theoretical analyses, show the efficiency of the proposed scheme over some well-known existing schemes.

中文翻译：

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在云计算环境中使用基于 DNA 的加密保护多媒体

如今，多媒体文件的大小从千兆字节到千兆字节甚至是千兆字节日益增长，这主要是因为大量实时数据的演变。由于大多数多媒体文件是通过互联网传输的，黑客和攻击者试图在未经任何授权的情况下访问用户的个人和机密数据。因此，维护强大的安全技术已成为保护个人信息的重要问题。脱氧核糖核酸 (DNA) 计算是提高安全性的先进领域，它基于 DNA 的生物学概念。本文提出了一种新的基于 DNA 的加密方案，用于保护云计算环境中的多媒体文件。在这里，基于 DNA 计算和用户生成一个 1024 位的密钥。s 属性和密码来加密任何多媒体文件。生成密钥时使用了十进制编码规则、美国信息交换标准码值、DNA参考密钥和互补规则，使系统能够保护多媒体文件免受多种安全攻击。实验结果以及理论分析表明，所提出的方案比一些著名的现有方案更有效。