there is such a demand:
(1) the electronic file is encrypted;
To decrypt the electronic file (2);
At present already achieve these two points!
Now want to achieve is:
Because when encryption is to use their own tools, now want to realize the electronic files decrypted only that this tool view, leave the tool file can't see,
Is also want to make a special file view tool, now only a vague idea, but not very clear, which come to help!

CodePudding user response:

I don't have to ask to place?

CodePudding user response:

"Special check tool" process:
to load the file to the FileStream - & gt; declassified documents to the MemoryStream - & gt; Memo controls from the decrypted MemoryStream loading content

CodePudding user response:

do a view tool, decryption to memory - & gt; Then load from memory - & gt; Display the file content.

CodePudding user response:

First try, this is a bit difficult for me