Cloud service providers allow users store and move data quickly and easily. Cloud service providers are using data de-duplication tools to conserve bandwidth and cut storage expenses. Customers want to use the cloud safely and privately so that their data is safe. So, they encrypt the data before sending it to the cloud. The encryption aim and the deduplication function don’t work well together, making it hard to employ the data deduplication functionality. The current methods for de duplication don’t work and aren’t safe from a security or efficiency point of view. They either cost a lot of processing power or are easy to break into, which lets the attacker get files back. This is what drives us to come up with a safe and effective way to get rid of extra data. Before we talk about the literature, which talks about a lot of different ways to de-duplicate data and the security and efficiency issues that current systems have, we will first explain how de-duplication techniques work and how they are used. Using hashing techniques and the AES-CBC algorithm, our suggested invention makes data de-duplication safer and faster for users. Users’ keys are always made safely and consistently, without the help of anyone else. We prove how useful it is by putting the suggested strategy into practice and comparing it to current ways.