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Authentication by Mentioning using Twitter

Conventional method of authentication is to send an email with a link back to a user. You can achieve the same result with Twitter. You don't have to ask your user for an email address anymore. Your user will have one less worry that she will be spammed by email. With this method you don't have to ask for your user Twitter password. And you don't have to register your application to the Twitter's OAuth. The method is called authentication by mentioning. However, your user need to have a Twitter account.

How does the method works? Prepare a short text and ask your user to tweet it and do not tweet anything else until the process is complete. She will have to inform your application that she has already tweeted the text. Your application will then verify that the user has indeed tweeted the text by reading it through Twitter's API. It is as simple as that. Your application needs to know your user's Twitter name to do so. Your user have to sign in to Twitter before she can tweet. You can be sure that the tweet is not done by somebody else. Tweeting is an act of mentioning. And verifying the tweeted text is an act of authentication. Hence, the term authentication by mentioning.

Your user may be reluctant to tweet the given text. So, you may need to give her a selection of text to choose from. The choices depend on the type of your application. It will be easier if your application itself is to do with tweeting. A step further, you may be able to add advertisement in the text and make extra money from the process!

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