Can anyone share the authentication code of blockchain?

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Lei Xu

What do you mean by authentication code of blockchain?

If you mean message authentication code (MAC), you can share the code publicly. But it also requires to share the secret key used in the code generation to verify the code.

Zain ul Abadin

Dear Lei Xu, my question is about Authentication of a new node/block in blockchain to verify wheater new node who wants to join blockchain is benevolent or malicious.

Otmane El Mouaatamid

Dear Zain ul Abadin ,

There are lots of schemes for authentication... we don't know which scheme will be matched with your scenario... Especially you are working in Blockchain filed with Cooja simulator.

I think you should describe more the specifications of your project.

B.Regards.

Otmane.

Dear Otmane El Mouaatamid our authentication scheme is based on matching the digital signature with ledger of database .

Zain ul Abadin Signature can be used to authenticate a user and his/her messages. But you have to consider the certificate management. Generally, you will need a PKI to support that.

For IoT, we generally assume it is computationally limited, you can search lightweight authentication, there should be a lot of candidates.