it's the doubts lie in the very core concept, but I wanna know how the nodes know that the private+public key is right.

1 Answer 1


Blockchains use elliptic curve cryptography which is a type of public key cryptography.

In a public key cryptosystem the private key is used to sign a message, and the public key is used to verify a message.

Blockchains don't need the private key to verify a transaction.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.