Basic Architecture Of Blockchain And Usefulness

Basic cryptographic primitives behind the blockchain technology
A cryptographically secure Hash function
Digital signature
Hash function: used to connect the “blocks” in a blockchain in a tamper-proof way
Digital signature: digitally sign the data so that no one can “deny” about their own activities
in this set of discussions, we will look into the broadly 2 concepts, one is The cryptographically secure hash function and the second concept of digital signatures, which works as the fundamental building block behind blockchain technology.

So, this hash function is used to connect different blocks one after another that we had seen earlier during the basic discussion that, individual blocks of a blockchain, they are connected with each other through some hash function.

And then we will look into the concept of digital signature, where this digital signature is used for making the blockchain tamper-proof and resilient against non-reparation kind of attack, where one party makes a transaction he or she will not be able to deny that the transaction has not ah been made he or she has not made that transaction.read more