did-key-creator/lib/encodeDIDkey.js

This is a library for converting public keys to the did:key format

import * as u8a from "uint8arrays";
import multicodec from "multicodec";
import { base58btc } from "multiformats/bases/base58";
export function encodeDIDfromHexString(multicodecName, publicKeyHex) {
    const publicKey = u8a.fromString(publicKeyHex, "base16");
    const didKey = encodeDIDfromBytes(multicodecName, publicKey);
    return didKey;
}
export function encodeDIDfromBytes(multicodecName, publicKey) {
    const publicKeywPrefix = multicodec.addPrefix(multicodecName, publicKey);
    const bufAsString = base58btc.encode(publicKeywPrefix);
    return `did:key:${bufAsString}`;
}
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