# Why does ECDSA produce a pair of values in its' signature (r,s)?

I was wondering why ecdsa generates a signature in form of a pair (r and s) and why it can't be only one value.

• Welcome to Cryptography.SE. Consider that you only $r$ or $s$, can you validate the signature? It is for keeping the secrets secret (they are masked)! Nov 12 '21 at 9:23