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I am relatively new to the eth community and i am currently trying to find a good way of using eth blockchain to create a signuo/signin mechanism. it turns out to do so in browsers, something like Metamask is needed.

What is Metamask ? what does it do ?

EDIT

What i need to know is what exactly should i do when having to use the users eth address to authenticate him/her ? in my recent attempts i had to use a login box like this one :

enter image description here

Of course i do have code behind that verifies the address and the login infos, but with metamsk i still don't grasp what should i do.

closed as off-topic by user19510, Roman Frolov, Achala Dissanayake, Ismael, flygoing Feb 23 '18 at 16:37

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  • This is a bit broad and open-ended. Is there something specific you don't understand after reviewing the content on metamask.io? – user19510 Feb 23 '18 at 10:07
  • @smarx, i did see the video from metamask.io. i did also an edit, please check it out. – Kaki Master Of Time Feb 23 '18 at 10:21
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If you are trying to incorporate an authentication system into your app, using the blockchain, you could use something like Uport.

https://www.uport.me/

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