We want to develop a project where Freelancer will have to provide dll in C# or C++.
We want to encrypt and decrypt different file formats like DOC, DOCX, XLS,XLSX, PPT,PPTX, PDF,
EXE, DLL, JPG, JPEG,PNG,TXT,DWG. When we encrypt except metadata all the other data will be encrypted. However metadata should not be [login to view URL] has to be AES128 or AES256 We need access to metadata even after encryption.
Freelancers who have handled or have knowledge of metadata structure of different file formats can easily do this project.
Kindly note that there will be two milestones.
1) Successful delivery of working dll
2) Transfer of source code