Crypto

Key generation and derivation functions.

Import

import { generateSecretKey, getPublicKey } from 'nostr-core'

generateSecretKey

function generateSecretKey(): Uint8Array

Generates a random secp256k1 secret key using the schnorr scheme.

Returns: Uint8Array - 32-byte secret key.

const sk = generateSecretKey()
// Uint8Array(32) [ ... ]

getPublicKey

function getPublicKey(secretKey: Uint8Array): string

Derives the public key from a secret key.

Parameter	Type	Description
secretKey	Uint8Array	32-byte secret key

Returns: string - 64-character hex-encoded public key (x-only, no 02 prefix).

const sk = generateSecretKey()
const pk = getPublicKey(sk)
// '3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d'

Example

import { generateSecretKey, getPublicKey, nip19 } from 'nostr-core'

const sk = generateSecretKey()
const pk = getPublicKey(sk)

console.log('nsec:', nip19.nsecEncode(sk))
console.log('npub:', nip19.npubEncode(pk))