Hybrid Cryptography Cloud Storage

The project is loaded in Visual Studio 2019.  Visual Studio is being used for the design and coding of the project. This project is created and maintained all databases into SQL Server
Management Studio 2008.
The algorithms in this project are developed using the C# language.
Hybrid Cryptography Cloud Storage system is a web-based application that runs in the
localhost where it has 2 users; customer of cloud service and the admin.

The scope of the project is liable to meet the required security needs of the data center of the cloud. The idea of splitting and merging adds on to meet the principle of data security. The user is required to upload a file, an image (password image), and insert a key.
The uploaded file will be then encrypted using three algorithms; aes, des, and rc2. The key for the encryption is embedded in the password image using image steganography and the encrypted image will be sent to the user's secondary email. Now, in order to download the uploaded file, the user has to upload the encrypted password image.
If the user fails to upload the encrypted password image, then the file will be downloaded as a non-readable text file.

The current issue in the system:
***The uploaded file is being downloaded with and without the encrypted password image.
The file should only be able to download in the readable form if the user uploads the encrypted password image (sent to the secondary email), or else it should be downloaded in a non-readable form.