bitbaba / bitmail

a purly Peer-to-Peer instant messenger client

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Download pre-built installer for windows

win32-release

Introduction

• Bitmail(比特信) is a purly Peer-to-Peer instant messenger client, to help people to communicate with each other securely.

• Authentication and security are based on PKI(Public Key Infrastructure), and are powered by OpenSSL.

• A Message singed by a signer's private key identify the sender (see Middle-Man Attack).

• A Message encrypted by public key, can not be viewed by anyone without private key while transferring.

• The rx/tx network is now based on MX(eMail eXchange) protocols, e.g. imap(s) & smtp(s), and is powered by CURL. There is more delay than real IM or IRC network. But the MX network can be replaced by (or upgraded to) other transfer networks.

• Free-speaking is your right. Get the privacy-protection from operators back to yourself.

• White paper: bitmail.pdf.md

Features

• secure talking with trusted friends.
• PKI utilities used to sign images, documents, and voting.
• reject any spam message away.
• invite friend(s) or accept friend(s) by exchange CertID ( the fingerprint of certificate ).

Build

clone

$git clone https://github.com/imharrywu/bitmail

build depends

$cd depends
$sh openssl.sh && sh curl.sh && sh libmicrohttpd.sh && sh miniupnpc.sh && qrencode.sh

build core

$sh autogen.sh

build Qt

open `qt/bitmail.pro' to build

TODO

• Mobile;
• Daemon & UPnP;
• Bitcoin wallet integration;
• Qt-GUI: translations, rich-text support, recall of history message-queue;

Welcome to contribute

• Anyone with Qt, web, mobile, or secure network programming knowledge is welcome.

TODO: ecdsa certificates

• openssl req -new -x509 -nodes -newkey ec:<(openssl ecparam -name secp384r1) -keyout cert.key -out cert.crt -days 3650
• ref: https://www.guyrutenberg.com/2013/12/28/creating-self-signed-ecdsa-ssl-certificate-using-openssl/