mirror of
https://github.com/moparisthebest/mailiverse
synced 2024-11-25 18:12:14 -05:00
92 lines
3.7 KiB
HTML
92 lines
3.7 KiB
HTML
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<title>How Mailiverse Works - Mailiverse</title>
|
|
<LINK_META>
|
|
<link rel="stylesheet" type="text/css" href="rev/__VERSION__/learnmore.css">
|
|
</head>
|
|
|
|
<body>
|
|
|
|
<div class="container">
|
|
|
|
<h1>How Mailiverse Works: Technical Version<span class="version">(__VERSION__)</span></h1>
|
|
<h2>Server</h2>
|
|
|
|
<h3>Receiving mail from an external source</h3>
|
|
When mail is received from an external source it is accepted using an SSL connection
|
|
manufactured via an authority issued SSL certificate.
|
|
<p>
|
|
We must use an authority based SSL certificate
|
|
as option, because some mail servers (hotmail,others) refuse to deliver mail when the SSL certificate
|
|
has been self generated.
|
|
|
|
<p>
|
|
In the future, we will set up another mail receiving server which does not use an authority issued SSL certificate.
|
|
All external mail will first attempt on the non authority issued SSL certificate.
|
|
|
|
|
|
<p>
|
|
For the time being, the second non authority based SSL certificate server does not exist.
|
|
We will update this page when it does.
|
|
|
|
<h3>Receiving mail from an internal source (two internal users mailing each other)</h3>
|
|
When mail is sent from one user to another, the mail never passes through an external server.
|
|
It also is sent to our server using an RSA public key which we have created privately.
|
|
<p>
|
|
Mail from one internal user to another never passes through an external network unencrypted, or encrypted using any
|
|
authority issued encryption key.
|
|
|
|
<h3>Writing mail</h3>
|
|
|
|
When mail is received by our server, whether internally or externally, the server
|
|
looks up the client's RSA PublicKey, encrypts (RSA-AES-CBC-256-EmbedIV)
|
|
the mail and writes it to the user's store.
|
|
<p>
|
|
Because of performance problems surrounding the javascript client parsing actual Mime messages,
|
|
the server also parses the mail into a JSON container, encrypts the JSON string with the RSA PublicKey
|
|
(RSA-AES-CBC-256-EmbedIV) and writes that as well to the user's store.
|
|
|
|
<h2>Client</h2>
|
|
|
|
<h3>Sign up</h3>
|
|
The javascript client creates all of the RSA keys and configuration locally.<br/>
|
|
It also uses the user's password to generate a
|
|
VerificationKey and CryptoKey [PKDF2-HMAC-SHA256,#iter=131072,kl=256,public salts].
|
|
<p>
|
|
|
|
In order to transfer the VerificationKey the client uses an RSA Public Key we have
|
|
created privately. The VerificationKey never is transmitted plain text or encrypted with an
|
|
authority issued encryption key.
|
|
<p>
|
|
|
|
The client block is first encrypted using the CryptoKey and then
|
|
transfered to the server using an SRP encrypted connection based on the VerificationKey.
|
|
|
|
<h3>Login</h3>
|
|
The javascript client logs into our server using SRP. (SRP provides protection from MIM attacks.)
|
|
<ul>
|
|
<li>Use password to generate VerificationKey and CryptoKey [PKDF2-HMAC-SHA256,#iter=131072,kl=256,public salts]</li>
|
|
<li>Use the VerificationKey as the password for SRP authentication</li>
|
|
<li>Use the CryptorKey to decrypt the user block (AES-CBC-256-EmbedIV)</li>
|
|
<li>Obtain the user RSA KeyPair from the decrypted block</li>
|
|
</ul>
|
|
|
|
<h3>Parsing Mail</h3>
|
|
|
|
The client uses the RSA Private Key to decrypt (RSA-AES-CBC-256-EmbedIV) json container mail stored on
|
|
the user's storage. It then creates cache files to allow information to be more quickly loaded.
|
|
<p>
|
|
These cache files are encrypted (AES-CBC-256-EmbedIV) with an AES key, generated from
|
|
a combination of a secret seed and the file name.
|
|
|
|
<h2>iOS Client</h2>
|
|
The iOS client works exactly like the web client. No caches are stored on the device.
|
|
|
|
<footer>
|
|
<p>© Benith Inc. __THIS_YEAR__</p>
|
|
</footer>
|
|
</div>
|
|
</body>
|
|
</html>
|