Implementation of Advanced Encryption Standard (AES) 256 Algorithm on WEB Based Application for Protecting Sensitive Data on MIKROTIK CCR 1009 VPNIP Device

Despite various security strategies for securing sensitive data, there has not been a significant increase in adding new network services in the past year. Network services data remains insufficiently protected and primarily functions as an archive and report. Therefore, analyzing the data within the company's network services is essential to strengthen its security framework. To ensure data protection against unauthorized access, the company should implement an advanced security system. The Advanced Encryption Standard (AES) is a highly secure, symmetric encryption algorithm that is widely accepted as a robust encryption method. This study focuses on the implementation of AES 256, which utilizes a 256-bit key for encrypting network services data, ensuring sensitive information is safeguarded from unauthorized access. By employing AES 256, every sales transaction undergoes encryption before storage, ensuring that only those with a valid decryption key can access the data. This process plays a crucial role in maintaining data confidentiality and protecting essential operational information. The expected outcome of this study is an enhancement in data security, providing management with improved strategies to protect their network services data. Additionally, the analysis and implementation of AES 256 encryption are anticipated to contribute to more secure data handling practices and support management in establishing better security measures to mitigate risks associated with unauthorized data access.