PGP Zip archives let you put any combination of files and folders into a compressed, portable archive using asymmetric encryption using a public key to encrypt and a private key to decrypt. Mass-DAC requires the use of public keys to encrypt the archive if it contains high risk confidential information, as with data submissions from the hospitals and quality reports or files sent to the hospitals.
Each hospital data manager should have a copy of the current Mass-DAC data manger and research assistant PGP public keys. These must be included on each file you encrypt. The public keys will have the extension *.asc.
Click New PGP Zip in the PGP Zip Control Box to open up the PGP Zip Assistant.
Drag and drop the files/folders you want to be in the archive or use the buttons to select them. Once all files are included, click Next.
In the Encrypt dialog box, choose Recipient keys, this is the most secure method, then click Next to open the Add User Keys dialog box.
Click Add… and use the User Selection screen to select the public keys of those persons who you want to be able to open the archive. If you want to be able to open the archive, be sure to include your public key. After all users are added, click Next.
In the Sign and Save dialog box enter your key pass-phrase for your personal key to sign the archive. In the Save Location specify a name and a location for the archive. The default name is the name of the first file or folder in the archive; the default location is the location of the files/folders going into the archive. Then click Next to open the Finished dialog box.
The Finished screen displays information about the new archive, which users can open it and who signed it. Click the Finished button, and the PGP Zip archive is created.