ECDSA — How to programmatically sign a transaction

Cryptography series IV — ECDSA explained: we are going to grab a message and do all the steps for ECDSA signing — the most commonly used digital signature algorithm in blockchains

If you are in the blockchain space, almost for sure, you have heard about ECDSA. ECDSA stands for Elliptic Curve Digital Signature Algorithm and uses the elliptic curve cryptography.