Step 2. Set an Encryption Key
If you haven't entered an Encryption Key
before, you will be prompted to create one as shown below.
An encryption key is just like a password. The encryption process mixes it with the file content to
make the file unreadable by others. Each encryption key has a Key Name, which helps you remember the key itself.
Enter an encryption key and click OK
TIPS: As you do with choosing a password, pick a strong key, and a name that is easy to remember
but not related to the key itself.