@polkadot/util-crypto/sr25519/pair/fromSeed.js

A collection of useful crypto utilities for @polkadot

import { u8aToU8a } from '@polkadot/util';
import { sr25519KeypairFromSeed } from '@polkadot/wasm-crypto';
import { sr25519PairFromU8a } from './fromU8a.js';
/**
 * @name sr25519PairFromSeed
 * @description Returns a object containing a `publicKey` & `secretKey` generated from the supplied seed.
 */
export function sr25519PairFromSeed(seed) {
    const seedU8a = u8aToU8a(seed);
    if (seedU8a.length !== 32) {
        throw new Error(`Expected a seed matching 32 bytes, found ${seedU8a.length}`);
    }
    return sr25519PairFromU8a(sr25519KeypairFromSeed(seedU8a));
}