password protect the video

lianne143
lianne143 used Ask the Experts™
on
Hi

I do have a video that is in a .MOV format and the size is 9MB . I have been requested to  password protect the video.
This video will be sent to a another organisation through an email.

Please let me know how to password protect the video file.

Any help will be great.
Thanks
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Paul MacDonaldDirector, Information Systems

Commented:
Short of zipping the file up and passwording that, I'm not sure how this could be done.  Even then, once it was unzipped, anyone could distribute it without issue.

You might be better off e-mailing a link to a web page where people can watch the video once they've logged in.  Again, it's possible to copy the content and redistribute it, but this would be more secure than the alternative you're considering.
ste5anSenior Developer

Commented:
The better approach is asking them for their public key to encrypt it.
Joe WinogradDeveloper
Fellow 2017
Most Valuable Expert 2018

Commented:
Hi lianne,

> I have been requested to password protect the video.

The question is...why? What are your folks trying to achieve by password-protecting the file? In case the email to the other organization goes awry or gets intercepted? In that case, don't put the password for it in the email. :) As Paul pointed out, once people are able to view the video, game over...you'll need to trust those people. Depending, again, on what your folks are trying to protect against, Paul's zipping approach (with a password not in the email) strikes a reasonable compromise between security and ease-of-use, imo. Paul's web-page idea and ste5an's public-key idea are better than email, but harder to do, and, in the end, won't stop a bad actor once it is viewed...and captured! Regards, Joe
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Author

Commented:
Yo mean that i will not be able to password protect this video file using 7zip or WINRar

Staff use Microsoft one drive and creating a link  and emailing the recipient will be possible ?
Developer
Fellow 2017
Most Valuable Expert 2018
Commented:
> Yo mean that i will not be able to password protect this video file using 7zip or WINRar

To be clear, you can't password-protect the video file itself, but you can password-protect an archive file with that video file in it. Any decent archiving software, such as WinZip, 7-Zip, and WinRAR, among others, can password-protect the archive files (.zip, .7z, .rar, etc.) that they create. But, the point is, once your users extract the .MOV file from the archive, it is now un-password-protected and you are relying on the integrity of the recipients not to distribute it.

> Staff use Microsoft one drive and creating a link and emailing the recipient will be possible ?

Yes. This Microsoft Office article explains it:
https://support.office.com/en-us/article/share-onedrive-files-and-folders-9fcc2f7d-de0c-4cec-93b0-a82024800c07

But, again, it's back to the issue of what your folks are trying to protect against. Regards, Joe

Author

Commented:
Hi

Please help , i tried with 7zip and winrar  and i ma able to put the password and save it . But when i open it dosent prompt for the password.

Author

Commented:
Tutorial will be great , not sure if iam doing something wrong.
Sorry to be silly...
Paul MacDonaldDirector, Information Systems

Commented:
Joe WinogradDeveloper
Fellow 2017
Most Valuable Expert 2018

Commented:
> But when i open it dosent prompt for the password.

It doesn't password-protect the list of files in the archive, so you can see the file names when you open the archive. But it does password-protect the contents...try to copy the file out of the archive and you'll get the prompt for password. Regards, Joe

Author

Commented:
Thanks Joe
I will try this ..
Joe WinogradDeveloper
Fellow 2017
Most Valuable Expert 2018

Commented:
> I will try this

OK, I'm sure you'll find that when you try to extract/copy the file from the archive, you'll get the password prompt. Btw, if you think that it is important to hide the file name(s) in an archive, you can use the .7z format instead of the .zip format. With .7z, there's a checkbox that says "Encrypt file names" (default is un-checked). When you check that box, you won't even be able to see the file names in the archive without first entering the password. The downside is that the only encryption available for a .7z archive is AES-256, which Windows natively can't open, so all your recipients would need software that can open it, such as 7-Zip, WinZip, or robust file managers like DOpus and Total Commander. If that's a problem, you should make a .zip archive with ZipCrypto encryption, but (a) you can't encrypt file names with that and (b) it is nowhere near as secure as AES-256. Regards, Joe
Scott FellDeveloper & EE Moderator
Fellow 2018
Most Valuable Expert 2013

Commented:
I deal a lot with files that have to do with sensitive information such as health records.  They typically have third party services do this for them but the way it works is a password protected zip file is sent through email and the password is sent either from a separate email or via snail mail.  

Other third party services do not actually send the file, they keep the file in the cloud away from reach until a link and password is presented. At that time the file is ready for download.  

You could use OneDrive for business in this case even for HIPAA as all of O365 is compliant.

With all that said, once the video is out of the zip file or downloaded, it is no longer password protected of course. What you are asking is very common. There are just multiple ways to achieve what you want.
Just to expand on what Joe mentioned about being able to open a password-protected *.ZIP file and view the files in the program's window (WinZip, 7-Zip, etc), but the user only being prompted for the password when trying to open or extract one of the files.  Most Zip/Unzip programs will show the file names with a symbol of some kind alongside them indicating that they are protected.  It is therefore important to use file names that do not spell out the content and nature of the files should the zip file end up in outsider's hands, for example: "Hostile Takeover Bid Company Name" or "Financial Records Company Name" or "Manager John Smith Caught Stealing" or "Infidelity Evidence Andrew Albert Christian Edward Windsor".

Author

Commented:
Thanks for all you suggestions. I managed to give access to the recipient through one drive.
Joe WinogradDeveloper
Fellow 2017
Most Valuable Expert 2018

Commented:
You're welcome...and thanks back to you for letting us know what worked for you. Regards, Joe

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