# @okxweb3/crypto-lib > A base package for @okxweb3/coin-* Latest version **2.0.6** (published 2026-06-03) · MIT OR MPL 2.0 license · 0 weekly downloads ## Install ```sh npm install @okxweb3/crypto-lib pnpm add @okxweb3/crypto-lib yarn add @okxweb3/crypto-lib bun add @okxweb3/crypto-lib ``` ## Health **Score 55/100 (C)** — status: active. Positive: has types; no vulnerabilities; high quality score. Warnings: low downloads; no esm support. ## Facts | | | |---|---| | Version | 2.0.6 | | Published | 2026-06-03 | | First published | 2023-09-13 | | Weekly downloads | 0 | | License | MIT OR MPL 2.0 | | TypeScript types | bundled | | Module format | CommonJS | | Dependencies | 20 | | Unpacked size | 608.4 KB | | Known vulnerabilities | 0 (+11 in 1 direct dependencies) | | Install scripts | yes | | GitHub stars | 387 | | Author | okx | | Maintainers | xiao.xu, moxixii, martynyan, toringona, linus.wang, debuggor, jjay98, shisilu, npm-okx | | Keywords | wallet, web3, crypto, blockchain, sdk, transaction, signing, address, private-key | ## Links - npm: https://www.npmjs.com/package/@okxweb3/crypto-lib - Repository: https://github.com/okx/js-wallet-sdk - Homepage: https://github.com/okx/js-wallet-sdk#readme - Issues: https://github.com/okx/js-wallet-sdk/issues - npm.io page: https://npm.io/package/@okxweb3/crypto-lib ## Dependencies (20) - [wif](https://npm.io/package/wif.md) 2.0.6 - [long](https://npm.io/package/long.md) 5.2.4 - [bn.js](https://npm.io/package/bn.js.md) 4.12.3 - [brorand](https://npm.io/package/brorand.md) 1.1.0 - [hash.js](https://npm.io/package/hash.js.md) 1.1.7 - [inherits](https://npm.io/package/inherits.md) 2.0.4 - [hmac-drbg](https://npm.io/package/hmac-drbg.md) 1.0.1 - [typeforce](https://npm.io/package/typeforce.md) 1.18.0 - [protobufjs](https://npm.io/package/protobufjs.md) 7.5.5 - [@scure/base](https://npm.io/package/@scure/base.md) 1.2.6 - [randombytes](https://npm.io/package/randombytes.md) 2.1.0 - [@scure/bip32](https://npm.io/package/@scure/bip32.md) 1.7.0 - [asmcrypto.js](https://npm.io/package/asmcrypto.js.md) 2.3.2 - [bignumber.js](https://npm.io/package/bignumber.js.md) 9.1.2 - [@noble/hashes](https://npm.io/package/@noble/hashes.md) 1.7.2 - [@noble/ed25519](https://npm.io/package/@noble/ed25519.md) 1.7.3 - [@noble/secp256k1](https://npm.io/package/@noble/secp256k1.md) 1.7.1 - [@metamask/key-tree](https://npm.io/package/@metamask/key-tree.md) 10.1.1 - [minimalistic-assert](https://npm.io/package/minimalistic-assert.md) 1.0.1 - [minimalistic-crypto-utils](https://npm.io/package/minimalistic-crypto-utils.md) 1.0.1 ## Alternatives - [@gemini-wallet/core](https://npm.io/package/@gemini-wallet/core.md) — 515.6K weekly downloads - [utility](https://npm.io/package/utility.md) — 416.6K weekly downloads - [@primno/dpapi](https://npm.io/package/@primno/dpapi.md) — 7.2K weekly downloads - [pi-readseek](https://npm.io/package/pi-readseek.md) — 3.7K weekly downloads - [@emilia-protocol/verify](https://npm.io/package/@emilia-protocol/verify.md) — 1.1K weekly downloads ## Recent versions - 2.0.6 (latest) — 2026-06-03 - 2.0.4-beta.0 (beta) — 2025-09-28 - 2.0.5 — 2025-10-09 - 2.0.4 — 2025-09-28 - 1.0.13 — 2025-07-30 - 1.0.13-beta.0 — 2025-07-24 - 2.0.0-beta.0 — 2025-07-01 - 1.0.12 — 2025-06-17 - 1.0.11-beta.1 — 2025-06-10 - 1.0.10-beta.1 — 2025-06-10 - 1.0.11 — 2025-03-12 - 1.0.10 — 2025-01-15 - 1.0.9 — 2025-01-15 - 1.0.8 — 2025-01-09 - 1.0.7-beta.10 — 2024-12-23 - … 18 more at https://npm.io/package/@okxweb3/crypto-lib/versions ## README # Installation This is a base package on which all currencies depend. You need to install this library. ```shell npm install @okxweb3/crypto-lib ``` ## Provides We provide common functions about bip32, bip39, ecdsa, ed25519, etc. #### bip32 method ```typescript let node: bip32.BIP32Interface = bip32.fromSeed(base.fromHex("000102030405060708090a0b0c0d0e0f")); console.info("publicKey: ", base.toHex(node.publicKey)); console.info("privateKey: ", base.toHex(node.privateKey!)); console.info("chainCode: ", base.toHex(node.chainCode)); ``` #### bip39 generate private key and public key, sign message, ```typescript const mnemonic = bip39.generateMnemonic() const masterSeed = await bip39.mnemonicToSeed(mnemonic) const rootKey = bip32.fromSeed(masterSeed) const childKey = rootKey.derivePath("m/44'/0'/0'/0/0") const items = [] items.push(mnemonic) items.push(base.toHex(rootKey.privateKey!)) items.push(base.toHex(childKey.privateKey!) ) const pk = childKey.privateKey! const pb1 = signUtil.secp256k1.publicKeyCreate(pk, true) items.push(base.toHex(pb1)) const pb2 = signUtil.ed25519.publicKeyCreate(pk) items.push(base.toHex(pb2)) const msg = base.randomBytes(32) items.push(base.toHex(msg)) // recovery + r + s const s1 = signUtil.secp256k1.sign(msg, pk, true) items.push(base.toHex(base.concatBytes(Uint8Array.of(s1.recovery + 27), s1.signature))) const s2 = signUtil.ed25519.sign(msg, pk) items.push(base.toHex(s2)) ``` #### common hash and format methods ```typescript const msg = base.randomBytes(32) const s1 = base.toHex(base.sha256(msg)) const s2 = base.toHex(base.sha512(msg)) const s3 = base.toBase58(msg) const s4 = base.toBase58Check(msg) const s5 = base.toBase64(msg) const s6 = base.toBech32("prefix", msg) const s7 = base.toHex(base.hash160(msg)) const s8 = base.toHex(base.keccak256(msg)) const s9 = base.toHex(base.hmacSHA256("key", msg)) ``` #### ed25519 common sign method ```typescript const str = "f339d78368680b2fa1c7c0e67c6c40ab0da01ce21ceb1cbbdb707ae7920eff68d84e93f864287b8be1b3d6c5363b6b0dc0140fbbfadcc4c3cb15eae5da901926"; const secretKey = base.fromHex(str); const p = signUtil.ed25519.publicKeyCreate(secretKey) console.info(base.toHex(p)); const v = signUtil.ed25519.publicKeyVerify(p) console.info(v); const f1 = signUtil.ed25519.fromSeed(secretKey.slice(0, 32)) const f2 = signUtil.ed25519.fromSecret(secretKey) console.info(f1, f2); const msgHash = sha256("abc") const signature2 = signUtil.ed25519.sign(msgHash, base.fromHex(str.substring(0, 64))) const r2 = signUtil.ed25519.verify(msgHash, signature2, p) console.info(base.toHex(signature2), r2); ``` #### ecdsa common sign method ```typescript const secretKey = Buffer.from(base.fromHex("5dfce364a4e9020d1bc187c9c14060e1a2f8815b3b0ceb40f45e7e39eb122103")) const v = signUtil.secp256k1.privateKeyVerify(secretKey) console.info(v); const publicKeyCompressed = signUtil.secp256k1.publicKeyCreate(secretKey, true) const publicKeyUnCompressed = signUtil.secp256k1.publicKeyCreate(secretKey, false) console.info(base.toHex(publicKeyCompressed), base.toHex(publicKeyUnCompressed)); const v1 = signUtil.secp256k1.publicKeyVerify(publicKeyCompressed) const v2 = signUtil.secp256k1.publicKeyVerify(publicKeyCompressed) console.info(v1, v2); const k1 = signUtil.secp256k1.loadPublicKey(publicKeyCompressed)! console.info(base.toHex(k1.x.toArray()), base.toHex(k1.y.toArray())); const k2 = signUtil.secp256k1.loadPublicKey(publicKeyUnCompressed)! console.info(base.toHex(k2.x.toArray()), base.toHex(k2.y.toArray())); const c = signUtil.secp256k1.publicKeyConvert(publicKeyUnCompressed, true)! console.info(base.toHex(c)); const msgHash = base.sha256("abc"); const s = signUtil.secp256k1.sign(Buffer.from(msgHash), secretKey) console.info(base.toHex(s.signature), s.recovery); const r = signUtil.secp256k1.recover(Buffer.from(s.signature), s.recovery, Buffer.from(msgHash), true) if(r != null) { console.info(base.toHex(r)) } // message: Buffer, r: string, s: string, publicKey: Buffer const vv = signUtil.secp256k1.getV(Buffer.from(msgHash), base.toHex(s.signature.slice(0,32)), base.toHex(s.signature.slice(32)), publicKeyCompressed) console.info(vv); const bb = signUtil.secp256k1.verifyWithNoRecovery(msgHash, s.signature, publicKeyCompressed) console.info(bb); ``` ## License Current package is [MIT]() licensed. --- _Source: https://npm.io/package/@okxweb3/crypto-lib · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._