An increasing number of identity theft and data leakage all over the world have become an important challenge.

If you want to make your website a limited area for certain users, you'll need to decide if you can create your own unique user identification system. A standard solution is that the user already has some platforms (Facebook, Yahoo, Google or e-mail platforms). In this case, you only need to use the appropriate mechanism (usually the OAuth 2.0 protocol) to see if someone trying to log into your site using an external user ID is the same user.

While it is more convenient to implement this option, it involves risk to the site owner. Eventually the site owner will lose access to the information on the site as a result.

In addition, users sometimes face access to the site with their personal information. This is specific information such as name, email, age, location. If logging in with an external account is the only option, the user must make a difficult decision. The options are to stop using the site or give up their privacy.

Most users sacrifice their privacy and confidentiality by thinking that if there is nothing to hide, nothing bad will happen. However, as time has proved to us, it can be used to access bank accounts, wallets, and other types of accounts if a malicious person provides this data.

But if there is a way to protect our information from threats of mistrust that can be taken over and misused, blockchain technology.

But before we start, let's briefly explain three main topics:

• The user wants to present his personal information to a site he does not trust.
• The site wants to use an external authentication system to eliminate user data and the security costs that come with it.

• Existing external systems interested in authentication of sites can censor accounts. Accounts can be locked at any time for any reason at any time, and often can be locked without giving you the option to recover.

Is Blockchain Authentication?

Authentication blockchain use of,

The Blockchain application in this sector is currently in its initial stages, but is also rapidly evolving. Blockchain technology can be applied in many sectors such as technology, retail, supply management, banking, elections, medicine, insurance and others. Another that can be added to the list is that the blockchain is used as an authentication provider.

You can prove that you are the person you claim to have with a single digital identity generated and managed by Blockchain technology.

Blockchain uses a key pair (public and private) when registering a user's identity. Personal information is converted and stored as hash functions that may include name, social security number, fingerprint or other biometric data.

After storing the information, the user can be used to confirm that the information entered on the blockchain is valid. So now someone who always asks a user to prove any identity of the authentication or identification process, only those who match the data from the block that has already been verified by the trusted recognized are considered to be self-validated in this system.

I Etherea Use of

By using a secure and decentralized network such as Ethereum, you may be able to help authenticate such.

Cryptographically secure key pairs consist of a public key representing the wallet address and a private key that is never broadcast over the network. Also, it is only possible to apply asymmetric encryption to the owner knows the private key and to authenticate users.

I Etherea The simplest way to use your wallet address is like a user ID. However, if the user has lost the key or access to them, they will never be able to access the system again.

Similarly, if your key was learned by a hacker, you cannot use the same key to prove that it is you. The hacker can act like you on all the sites you've signed up for.

Obstacles

However, the challenge in such a case is that it requires a high level of trust between the parties. Another issue of using blockchain for authentication is to make it reliable and decentralized blockchain This is because there are too many independent entries to calculate. Bitcoin In the case of this contribution, the next block in the chain is compensated by taking a small amount of Bitcoin to provide.

Result

There will still be events where users may lose their identity, but this will only be limited to phone loss or other data carriers where the private key part of the registered ID in the block chain is stored. In such a case, a user will not have the opportunity to request a new identity or to report the loss as a loss / stolen since the IDs in the block chain are not centrally managed.

If the above-mentioned experiments can be performed in the near future, blockchain can open new hopes in authentication applications.

Source: Coindoo