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How to create an encrypted .dmg archive

Here are the simple steps to create an encrypted .dmg archive to share data securely.

Pratyush Chowdhary avatar
Written by Pratyush Chowdhary
Updated over a year ago

On Mac

  1. Create a directory and put the file you want to send in it.

3. Use the Disk Utility tool to create a New Image 

4. When presented with this dialog, select Image Format as "compressed" and set Encryption to "256-bit AES encryption (more secure, but slower)":

5. Go to https://lastpass.com/generatepassword.php and create a password using the exact following settings: 

6. Click save and wait til it's finished:

7. Send the .dmg file to the Orah team via Email.

8. Ask the Orah team to give you a callback and dictate the password by phone.

On Windows
While many tools are available online, some of our customers have found the below-listed tools helpful.

  • 7zip

  • WinZip

  • WinRAR

  • B1 Free Archiver

  • PeaZip

Feel free to reach out to our Customer Support team, should you have any questions or concerns.

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How to open an encrypted .dmg file on Mac & Windows Computer
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