Abstract:
Nowadays, the security issue is a big threat for large companies and personnel. In the digital era, people widely depended on data transactions and sharing valuable information with others. However, there are some difficulties with data transfer which are security issues. Many malicious attackers or hackers awaited users’ important data to steal or destroy the data. That’s why information security is the key term in data transactions. In the security world, there are even several ways and techniques used to secure communication, apathy is the better option among them. Cryptography is the technique to secure communication and prevent access to transactions from unauthorized users and intruders. The main strength of cryptography is it changes the u that it changes the user’s original text format to an unreadable format that outsiders cannot understand y, there are two types of encryption processes: symmetric and asymmetric. In symmetric key-based cryptography, the same secret key is used for the encryption and decryption process. The secret key enhances the security of data transactions and is unable to crack. Only the sender and receiver know about secret keys because they are very confidential. In this research, we proposed a security system for secure data communication and ensuring data integrity based on key-based symmetric key cryptography. We apply mostly used and secured a symmetric key algorithm Advanced Encryption Standard (AES) due to the strong encryption system of this algorithm. For this reason, we used the AES algorithm to increase data integrity, confidentiality, and security.
