Data security is a crucial issue in today’s digital world of communication. As we all know, hackers are everywhere these days, looking for valuable information that they can exploit for various purposes. When it comes to government data from any country, the risk doubles. As a result, a system or terminology must be in place to keep data secure at all times throughout transmission. Data protection can be achieved by converting the original data to some other unusable data, so that if that data is obtained, it must likewise remain in unusable bits. Previously, the DES block cipher algorithm was employed for security, but it had some limitations. DES has a key length of 56 bits and can be compromised by brute-force attacks. It is also subject to attacks that use linear cryptanalysis. So, we propose the AES Stream cipher technique for increased security, with key lengths of 128, 192, and 256 bits that will not be compromised by brute force assaults. It is more efficient than the DES cipher. In this proposed work, we aim to apply the AES method for encrypting and decrypting the data that is placed on the cloud server so that we may store the data effectively and efficiently for cloud users.