In the physical world, you protect your written correspondence from prying eyes by putting it in a sealed envelope before posting and you ensure it gets to the right person by making it special delivery. You let the person know it’s from you by signing it.
In the online world, sending an e-mail message is like sending a postcard in that it’s easy to intercept and anyone can read it. Also, the recipient has no way of knowing that anything untoward has happened along the way. A Digital Certificate from Formidable CA stops all that at the click of a button.
Digital Certificates are extremely easy to deploy (although the technology behind them is somewhat mind-boggling).
Basically, a Digital Certificate is a pair of files on your computer that you can use to create the digital equivalent of handwritten signatures and sealed envelopes. Each pair of files is divided into two parts: the public key and the private key. The public key is the portion that is shared; the private key is the portion that you, and only you, should have access to. Your computer and programs only shares the public portion of your keys so that others can see them while your private keys are kept secure.
So, when you send an email, you can digitally sign the message by attaching your digital certificate. Once they receive the message, recipients can verify that it came from you by viewing the small attachment on the e-mail. This contains your public key information which means that the email can only have come from you and that it hasn’t been interfered with.
You can also use digital certificates to electronically sign documents. This is one reason why it’s extremely important to protect the private key portions of your certificate files and never share them. They are virtually impossible to fake so you could be legally bound to something within the document and it would be extremely difficult to prove that it wasn't you who digitally signed the message.
When you encrypt a message, you create the equivalent of a sealed envelope so that only you and the recipient can see the message. Without this, it’s the online equivalent of a post card and anyone who has access to the network between you and the recipient can potentially read it. With the encryption offered by Formidable CA digital certificates, you avoid this problem. In the case of encryption, you use the recipient's public key to encrypt the message. Only the recipient has the private key that allows the message to be decoded.
The digital certificate itself contains:
- The person's name
- An e-mail address
- A serial number
- A public key
- An expiration date (certificates are valid for five years)
- A digital signature
When you download a digital certificate, you will receive both public and private keys. The public keys are the ones that you will use to sign and encrypt documents. The private keys are the ones that will be stored on your computer. You should never, ever share the private keys.
There are several benefits to using digital certificates:
- Send signed email messages. This ensures the recipients that the message came from you and not someone pretending to be you.
- Encrypt the contents of email messages and attachments which avoids them being read by online intruders. Only your intended recipient can decrypt them.
- Encrypt files and/or folders on your computer. This is helpful for lost or stolen mobile devices and laptops because thieves would need to know your password to access any of the encrypted files or folders.
- Streamline and improve business processes by allowing people to use digital certificates to electronically sign documents or approve something at a given stage of a process. This also protects the integrity of documents against things like people in supply chains faking invoices etc.
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