First, Windows EFS in not going to work as it requires individual file access to be manually granted to every file in an encrypted folder! Also, I will not be encrypting the disk!
I need a tool that will allow for the encryption of selected folders and sub-folders on an Windows server, comprised of a few thousand files across ~400 subfolders.
I already use security groups to limit folder access. That is not the sufficient.
I need a tool that allows me to encrypt the folder contents and easily manage user access to the encrypted data in the folder, similar to using security ACL's for folder access.
There may be a half-dozen users requiring access to the folders. I want the process to be as transparent to the select users as possible.
Please provide some recommendations.