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PGP (Pretty Good Privacy) is a pr= otocol that is used for encrypting and decrypting files using a key pair. I= f you need to be certain that no one (really, no one) except the intended r= ecipient can decrypt your confidential files, you may use PGP encrypted fil= e transfer.
The diagram below displays how PGP works in Quatrix. It uses one ke= y to encrypt the file (the public key) and another to decrypt (the private = key) which traditionally makes it much more cumbersome to use than standard= levels of encryption. But despite being cumbersome PGP is still a universa= lly-accepted standard for file encryption.
Enable PGP encryption
The account owner or administrator can enable or disable PGP for the acc= ount on the Administration tab.
As soon as PGP is activated, all users can share PGP encrypted files, be= sides contacts that can only decrypt, download and return encrypted files.<= /p>
If you disable PGP, all encrypted files won't be available for decryptio= n and download.
To proceed with encrypted file sharing you = need to check if private and public keys are generated.
As illustrated in the diagram above PG= P uses a pair of keys - the public key locks; the private key unlocks. So w= hen sharing files with your users or contacts you=E2=80=99ll be encrypting = with their public key and when you are acquiring files from your = users the files get encrypted with your public key.
Key Security
Your keys are securely stored on the Quatrix platform, additionally all = private keys are encrypted using your passphrase. The passphrase is not sto= red or remembered by Quatrix which gives you peace of mind that no one (and= that includes Quatrix staff), can ever decrypt files in transit or at rest= .
You should generate public keys at first - follow 3 simple steps below:<= /p>
Click on the link with your name at the top right and follow the Man= age Profile link.
Open the Security sub-tab.
Click on the Generate Keys button which=
opens the window for creating the passphrase for your keys. After clicking=
on the Generate keys button you get the notification that your PGP keys ha=
ve successfully been generated.
and then request another pair of keys from the intended recipient - send= PGP key generation request.
You should determine who you are going to share encrypted files with, ti= ck the boxes next to them either on the Contacts, or on th= e Administration tab and select the Request PGP keys button from = the top menu.
Besides you can send the request while adding your contacts by ticking t= he Request PGP keys check box.
When the request is sent, your recipient gets an email with the link to =
generate PGP keys. The recipient follows the link and generates PGP keys.
Once PGP keys are generated, a confirmation email will be sent to the se= nder of the request.
Changing PGP Keys vs Passphrase
Your PGP keys can be changed at any time on the Security sub-tab, but al= l previously encrypted files won't be accessible as they were encrypted wit= h the different PGP keys. If you noticed that your passphrase was com= promised, you can simply change the passphrase to your keys by clicking on = the Change Passphrase button. This preserves you the right to decrypt all p= reviously encrypted files.
Encrypting files is a way to prot= ect them from unwanted access. There are a few simple steps to share and ac= quire files with advanced PGP security in Quatrix.
To share encrypted files you should select the PGP encrypt files check b= ox on the Optional Settings section while sharing files.
If your recipient hasn't generated PGP keys, the email will be highlight= ed in red and you will be notified of missing keys. You should= request keys from your recipient on the Administration or Contacts tab to = proceed with encrypted file sharing.
You can easily decrypt files by following the Download link from the ema= il and entering the passphrase while downloading files. You can store your = files locally or on Quatrix cloud.
If you forgot your passphrase, you=
won=E2=80=99t be able to decrypt shared files! To proceed with encrypted f=
ile sharing you need to change your PGP keys on the Security