Hello, > For those who were not present at the meetup, kontalk is a Free > Software replacement for whatsapp - you can chat with anyone if you > know their phone number using a data connection (cheaper sms for many > people). See http://kontalk.org > > Currently it is available only on android. Their next version would > support XMPP and it would make it easy to get it working on other > platforms. > > Karan asked me how they would know if my contact has a kontalk account > if they don't store everyone's number? I asked the upstream and he > confirmed my guess.
I had asked this query! :) > When you register your number, the server sends you an sms to confirm > your number and the number is discarded. A one way hash of the number > is used as username (like storing passwords, the server can never > guess the number based on the hash). So when you want to talk to > someone in your phone contact list, the client will make a hash and > send it to the server to find the public. The public key of the user > will be signed by the server and all communications will be end to end > encrypted. Only way to spy would installing apps on the users' phones. Awesome! Thanks for the info. Best Regards, Rigved @Sent from my smart-phone -- http://mm.ilug-bom.org.in/mailman/listinfo/linuxers
