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How EaSecure Works?

EaSecure is a public-key encryption-based secure email system that is made as easy to use as putting envelopes on your personal letters. In many ways, it is very similar to the envelopes that you use for sending personal letters.

When you send an EaSecure message, the EaSecure software will determine whether the recipient is already an EaSecure user by checking whether a valid recipient certificate can be located either on the sender's computer or on the Certificate Server. If a valid certificate can be located, the certificate will be verified and the public key in the certificate will be used to encrypt the message sent to that recipient. The recipient can use his or her corresponding private key to decrypt the message. EaSecure messages sent in this way are like personal letters enclosed in envelopes made of steel that nobody can break.

If the recipient's certificate is not available from the EaSecure certificate server, indicating that the recipient is not yet an EaSecure user, the EaSecure message sent to that recipient will be protected by a one-time password. The one-time password will be sent to that recipient from the EaSecure Certificate server in a separate email. Because the one-time password is sent in the clear, there is no absolute guarantee that nobody else except the intended recipient can open the one-time-password-protected message. Anyone who intercepts both the email containing the one-time password and the EaSecure message protected by it will be able to open the message. What EaSecure does guarantee, however, is that this cannot be done without being noticed. Because the one-time password can only be used once, you cannot use it again if someone has already used it and you will certainly notice that you have been spied upon. This is very similar to the paper envelopes you use to send personal letters. An envelope does not guarantee that nobody else except the intended recipient can open it - anybody can tear it open - but a damaged envelope will alert the recipient that he or she has been spied upon, and few prying eyes are willing to risk that.

When the recipient opens the one-time-password-protected EaSecure message for the first time, his or her public/private keys will be automatically generated at the recipient's computer. The public key will be sent to the EaSecure certificate server for the server to issue certificates. The corresponding private key will be stored on the recipient's computer, protected by the recipient's own password. After that, the recipient's certificate will be available from the EaSecure certificate server and subsequent messages sent to that recipient will be encrypted by the recipient's public key. The recipient can open these subsequent messages using the corresponding private key. In addition, all one-time passwords previously used to protect EaSecure messages sent to the same email address will also expire immediately. These one-time passwords will become useless and cannot be used to open any EaSecure messages anymore. Instead, keys necessary for opening those previously received one-time-password-protected EaSecure messages will only be stored in the key file encrypted by the recipient's password, just like the private keys. This allows the recipient to open those one-time-password-protected EaSecure messages by entering his or her own password. This is how the magic happens - after the recipient opens the first envelope, all paper envelopes sent to the same address will immediately turn into steel and future letters sent to the recipient will always be enclosed in steel envelopes that nobody can break. Only the recipient holds the key to open these steel envelopes.

As described above, an EaSecure message can always be sent, regardless of whether the recipient is an EaSecure user. The only difference between a user and a non-user is that a user will receive messages in steel envelopes, while a non-user will receive messages in paper envelopes, until he or she opens the first message to become a user, and then all paper envelopes will turn into steel envelopes. This again is very similar to sending personal letters with envelopes - the recipient does not have to do anything before the letter can be sent.

Unlike other email encryption systems that require both the sender and the recipient to pay, EaSecure is always free to recipients. This again is very similar to sending letters using envelopes. The sender pays the postage, and the recipient can always receive for free.

Should you start putting envelopes on you emails now? You can get started by simply entering your email address below and clicking "Try It Now!" (You will receive a "Welcome" EaSecure message from customercare@easecure.com and an email with the one-time password from support@easecure.com.):

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Copyright EaSecure Corporation. All Rights Reserved. Several patents are pending for technologies used in the products and services described here.