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It does not accepts duplicate nicknames in the same group.

In place of nick name, you can use your name. This name should be the common name that you wish to use amongst your friends, so that they can be added to your encrypted chat room. When you launch Cryptocat, it lets you enter the conversation name that could be the name of your group. You just have to click on the link of the web browser that you are using (we have provided the links at the end of this article) so that it can be launched in the new tab page of your browser with Cryptocat Icon. It provides you security and offers you facilities like group instant messaging, encrypted file sharing, and much more.Ĭryptocat can be accessed easily. It lets you get desktop and audio notifications on your browser, no matter what web browser you are using. Mainly, it builds accessibility for those who like to communicate in encrypted chat format in much easier way.Ĭryptocat lets you create encrypted chat rooms in your web browser. It enables you to have private online chats without allowing your personal information being accessed this means all that you do online is under your control.

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In February, the Cryptocat team proudly announced that Cryptocat had earned a Veracode Level 2 classification and a Security Quality Score of 100/100.Cryptocat is a free online IM app that aims to provide you an easy, private, accessible Instant Messaging environment in encrypted chat room. The incident has also caused embarrassment for the security specialists at Veracode. According to the developers, the bug didn't affect private chats because it only occurred in group chats with more than two participants. The Cryptocat developers have since responded with a post on their development blog, expressly thanking Steve Thomas for his effort. Thomas says that the hole makes it possible to decrypt a seemingly secure, encrypted chat recording in a matter of minutes. Cryptocat can be used as a Browser extension for Chrome, Firefox and Safari.

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The idea is to prevent attackers from drawing conclusions about previous or subsequent keys when one key is cracked on a communication channel, so that earlier and later messages continue to be protected. This technique generates new key pairs for every chat to create what is known as Perfect-Forward-Secrecy (PFS).

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The software uses Off-the-Record (OTR) messaging to encrypt users' messages. The expert was especially angered about the bug fix description, saying that the developers made an attempt to cover up their mistake claiming the fix became necessary because of backwards compatibility problems.Ĭryptocat is designed to provide a securely encrypted online chat facility. This meant the private Elliptic Curve Cryptography (ECC) keys would be 'ridiculously small' and would present an ideal attack vector for brute force attacks. A function that expected an array of 15-bit integer values was actually handed a string of the digits 0 to 9 with the ASCII value of the digit taking the place of the 15-bit integer value and shrinking the possible values from 2^15 to 10.

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Thomas says that the vulnerability was triggered by a flaw in the code for converting strings into arrays of integers. On his web site, Steve Thomas has a massive go at the software developers. The security hole affects all versions of the chat software since 2.0, as the hole was only discovered and closed in version 2.0.42. According to security expert Steve Thomas, messages sent via Cryptocat between 17 October 2011 and 15 June 2013 are compromised.

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