Re: Email Encryption



dekket wrote:
I would suggest you try Secured eMail (www.securedemail.com). It's
stable and has a very high level of security. Instead of building upon
certificates which, if broken or stolen, will open up _all_ your
emails, Secured eMail uses System SKG to create a new dynamic key each
time. You open the emails using a password, and you don't have to
remember the password if you've opened one email from a recipient
before.
I'm not that good at their technology, go read about it yourself on
securedemail.com/semtech.asp instead.

It looks Secured eMail is fundamentally a symmetric key encryption
system. It requires exchange of a symmetric key or "Shared Secret". It
is far less desirable than public key encryption. If you exchange the
shared secret with email, then there is no security at all because the
email can be intercepted. For this reason, they recommend exchanging
the shared secret by phone or fax. This will be very cumbersome and you
cannot do this securely either, because the phone and fax may be
wire-tapped.

Public key based systems, such as S/MIME and PGP are much more
superior. Because the only thing that needs to be exchanged is the
public key, which will not compromise the private needed to decrypt the
message. The problem with S/MIME and PGP, however, is that they are
very difficult to setup and use. They cannot "send to anyone" - if the
recipient does not have a public key, the message cannot be sent.

EaSecure (see http://www.easecure.com/) provides the same grade of
public key encryption as S/MIME and PGP but is made extremely easy to
use and it allows "send to anyone" not requiring the recipient to have
a public key before the message can be sent. If the recipient does not
have a public key, the message will be protected by a one-time password
which will be sent to the recipient in a separate email. When the
recipient opens the first EaSecure message using the one-time password,
the recipient's public key will be automatically generated and
certificates will be automatically installed. After that, all EaSecure
messages sent to that recipient will be encrypted by the recipient's
public key. In addition, all one-time passwords for the same email
address will expire and become useless. All EaSecure messages,
including previously received messages and future messages will become
safe. Nobody can open them anymore, except the intended recipient who
has the private key. The exchange of public keys is also automatically
carried out through the EaSecure key server.

Disclaimer: I have an interest or is associated with EaSecure
Corporation. However, all my postings here are my personal views and
should not be mistaken as the official views of the EaSecure
Corporation. EaSecure Corporation will not be liable for anything I say
or do here.

.



Relevant Pages

  • Re: python function for retrieving key and encryption
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    (comp.lang.python)
  • Re: PGP encrypted email - basic questions
    ... I understand that a recipient of a PGP signed/encrypted message will ... have to get my public key to decrypt said message. ... The recipient of your message will have to get your public key to ... The recipient decrypts the message with his private key. ...
    (Security-Basics)
  • Re: how do you password protect an email???
    ... Get the x.509 digital certificate from your intended ... recipient (who must first send you a digitally signed message so you can ... get their public key), encrypt your message, send it, and the recipient ... and send the archive file as an attachment. ...
    (microsoft.public.outlook.general)
  • Re: Image Protection
    ... > Can digital signatures be protected? ... >> Only if you never want the recipient to see it (but then you wouldn't ... Only half the key is included in a digital signature: the public key. ... encrypt their message they send back to you, ...
    (microsoft.public.outlook.general)
  • Re: python function for retrieving key and encryption
    ... j> linux terminal .how do i get/connect with recipient public key. ... j> whatever i need to encrypt msg = recip.public_encrypt ... Show the error messages that your code gives when you run it. ...
    (comp.lang.python)