The attractive benefits of cloud computing environment motivate Information Technology (IT) companies to move their IT infrastructure on the cloud server. In a cloud environment, companies must depend on the untrusted Cloud Service Provider (CSP), which raises data security issues due to the presence of numerous hackers and malicious users. Apart from data security, high searching time of data owner, high data accessing time and high system overheard are other issues during data accessing from the cloud environment. To solve all these issues, in this paper, a novel DNA based fast and secure data access control model has been introduced for the cloud environment. Here, the cloud service provider maintains a table for fast and efficient data accessing. In this proposed scheme, a long 1024-bit Deoxyribonucleic Acid (DNA) based password or secret key is used to encrypt users' confidential or personal data. Experimental results along with theoretical analysis prove the efficiency of the proposed model over the existing models.

云计算环境的诱人优势促使信息技术（IT）公司在云服务器上转移其IT基础架构。在云环境中，公司必须依赖不受信任的云服务提供商（CSP），由于存在大量黑客和恶意用户，这会引发数据安全问题。除了数据安全性之外，从云环境访问数据的过程中还存在其他问题，即数据所有者的高搜索时间，高数据访问时间和高系统窃听能力。为了解决所有这些问题，本文针对云环境引入了一种新颖的基于DNA的快速，安全的数据访问控制模型。在这里，云服务提供商维护一个用于快速有效访问数据的表。在这个拟议的方案中，基于1024位长的脱氧核糖核酸（DNA）的密码或私钥用于加密用户的机密或个人数据。实验结果和理论分析证明了该模型相对于现有模型的有效性。