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Adjust readme docs on sig key recovery

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Paul Miller 2023-06-26 23:38:01 +00:00
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README.md
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@ -52,7 +52,7 @@ The package consists of two parts:
- ed25519 / curve25519 / x25519 / ristretto255, edwards448 / curve448 / x448 - ed25519 / curve25519 / x25519 / ristretto255, edwards448 / curve448 / x448
- pairing-friendly curves bls12-381, bn254 - pairing-friendly curves bls12-381, bn254
- [pasta](https://electriccoin.co/blog/the-pasta-curves-for-halo-2-and-beyond/) curves - [pasta](https://electriccoin.co/blog/the-pasta-curves-for-halo-2-and-beyond/) curves
2. [Abstract](#abstract-api), zero-dependency elliptic curve algorithms * [Abstract](#abstract-api), zero-dependency elliptic curve algorithms
### Implementations ### Implementations
@ -93,7 +93,7 @@ import { jubjub } from '@noble/curves/jubjub';
```ts ```ts
// extraEntropy https://moderncrypto.org/mail-archive/curves/2017/000925.html // extraEntropy https://moderncrypto.org/mail-archive/curves/2017/000925.html
const sigImprovedSecurity = secp256k1.sign(msg, priv, { extraEntropy: true }); const sigImprovedSecurity = secp256k1.sign(msg, priv, { extraEntropy: true });
sig.recoverPublicKey(msg) === pub; // public key recovery sig.recoverPublicKey(msg).toRawBytes(); // === pub; // public key recovery
const someonesPub = secp256k1.getPublicKey(secp256k1.utils.randomPrivateKey()); const someonesPub = secp256k1.getPublicKey(secp256k1.utils.randomPrivateKey());
const shared = secp256k1.getSharedSecret(priv, someonesPub); // ECDH const shared = secp256k1.getSharedSecret(priv, someonesPub); // ECDH
``` ```