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New illustrations for ECDSA and Schnorr signatures

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Andreas M. Antonopoulos 2022-06-26 15:15:47 +02:00
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@ -29,6 +29,13 @@ In Bitcoin, Schnorr signatures are applied to the secp256k1 elliptic curve. This
The BIP-340 document contains more than simply the final implementation of Bitcoin's Schnorr signatures: it describes the various design decisions and the rationale for the choices that were made. While we won't repeat those explanations here, we urge you to read BIP-340 for yourself, so that you may better understand the process and reasoning behind the specification.
Illustration footnote:[The Schnorr signature illustration is sourced from Stepan Snigirev's article "How Schnorr Signatures May Improve Bitcoin" (https://medium.com/cryptoadvance/how-schnorr-signatures-may-improve-bitcoin-91655bcb4744)]
[[schnorr_sigs_illustrated]]
.Schnorr signatures illustrated
image::images/schnorr_signatures.png["Schnorr signatures illustrated"]
==== Creting a Schnorr signature
The first part of a signature scheme is the formula used to create the digital signature, which is shown in <<schnorr_signing_formula>>: