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import { ICryptoDriver, KeypairBytes } from "./crypto-types.ts";import { stringToBytes } from "../util/bytes.ts";import { ed, sha256_uint8array } from "../../deps.ts";
const { createHash } = sha256_uint8array;
//--------------------------------------------------
import { Logger } from "../util/log.ts";const logger = new Logger("crypto-driver-noble", "cyan");
//================================================================================/** * A verison of the ILowLevelCrypto interface backed by noble/ed25519. * Works in the browser. */export const CryptoDriverNoble: ICryptoDriver = class {  static sha256(input: string | Uint8Array): Promise<Uint8Array> {    if (typeof input === "string") {      return Promise.resolve(        createHash("sha256").update(input, "utf-8").digest(),      );    } else {      return Promise.resolve(createHash("sha256").update(input).digest());    }  }  static async generateKeypairBytes(): Promise<KeypairBytes> {    logger.debug("generateKeypairBytes");    const secret = ed.utils.randomPrivateKey();    const pubkey = await ed.getPublicKey(secret);
    return {      pubkey,      secret,    };  }  static sign(    keypairBytes: KeypairBytes,    msg: string | Uint8Array,  ): Promise<Uint8Array> {    logger.debug("sign");    if (typeof msg === "string") msg = stringToBytes(msg);    return ed.sign(msg, keypairBytes.secret);  }  static async verify(    publicKey: Uint8Array,    sig: Uint8Array,    msg: string | Uint8Array,  ): Promise<boolean> {    logger.debug("verify");    try {      if (typeof msg === "string") msg = stringToBytes(msg);      const result = await ed.verify(sig, msg, publicKey);      return result;    } catch {      return false;    }  }};