feat: add RSA and ed22519 support

.github/workflows/js.yml

@@ -27,6 +27,8 @@ jobs:
       run: npm run lint
     - name: Build
       run: npm run build
+    - name: Crypto Tests
+      run: npm run crypto-tests
     - name: Static Tests (TS ESM)
       run: npm run ts-test-static
     - name: Static Tests (JS CJS)

README.md

@@ -57,12 +57,12 @@ Actively maintained, typed, and safe SDK for the Binance REST APIs and Websocket
 
 ### Features
 - Spot, Margin, Futures and Delivery API
-- Portfolio Margin API *\*soon*\*
 - Testnet support
 - Proxy support (REST and WS)
 - Customizable HTTP headers
 - Customizable request parameters
-- RSA/ECDSA support *\*soon*\*
+- RSA/ECDSA support
+- Portfolio Margin API *\*soon*\*
 - Websocket handling with automatic reconnection
 - RecvWindow and automatic timestamps generation
 - Ability to call any endpoint, even if not supported directly by the library

package.json

@@ -27,6 +27,8 @@
     "ts-test-live": "mocha ./tests/binance-class-live.test.ts",
     "ts-test-static": "mocha ./tests/binance-class-static.test.ts",
     "test-cjs": "node ./tests/cjs-test.cjs",
+    "crypto-tests": "mocha ./tests/crypto.test.ts",
+    "ws-tests": "mocha ./tests/binance-class-ws.test.ts",
     "ws-tests-spot": "mocha ./tests/binance-ws-spot.test.ts --exit",
     "ws-tests-futures": "mocha ./tests/binance-ws-futures.test.ts --exit",
     "test-debug": "mocha --inspect-brk",

src/node-binance-api.ts

@@ -11,6 +11,7 @@ import { HttpsProxyAgent } from 'https-proxy-agent';
 import { SocksProxyAgent } from 'socks-proxy-agent';
 // @ts-ignore
 import nodeFetch from 'node-fetch';
+
 // @ts-ignore
 import zip from 'lodash.zipobject';
 import stringHash from 'string-hash';
@@ -63,6 +64,8 @@ export default class Binance {
 
     APIKEY: string = undefined;
     APISECRET: string = undefined;
+    PRIVATEKEY: string = undefined;
+    PRIVATEKEYPASSWORD: string = undefined;
     test = false;
 
     timeOffset: number = 0;
@@ -209,6 +212,8 @@ export default class Binance {
 
         if (this.Options.APIKEY) this.APIKEY = this.Options.APIKEY;
         if (this.Options.APISECRET) this.APISECRET = this.Options.APISECRET;
+        if (this.Options.PRIVATEKEY) this.PRIVATEKEY = this.Options.PRIVATEKEY;
+        if (this.Options.PRIVATEKEYPASSWORD) this.PRIVATEKEYPASSWORD = this.Options.PRIVATEKEYPASSWORD;
         if (this.Options.test) this.test = true;
         if (this.Options.headers) this.headers = this.Options.Headers;
         if (this.Options.domain) this.domain = this.Options.domain;
@@ -535,7 +540,7 @@ export default class Binance {
                 data.timestamp += this.timeOffset;
             }
             query = this.makeQueryString(data);
-            data.signature = crypto.createHmac('sha256', this.APISECRET).update(query).digest('hex'); // HMAC hash header
+            data.signature = this.generateSignature(query);
             opt.url = `${url}?${query}&signature=${data.signature}`;
         }
         (opt as any).qs = data;
@@ -647,7 +652,9 @@ export default class Binance {
 
         if (!data.recvWindow) data.recvWindow = this.Options.recvWindow;
         const query = method === 'POST' && noDataInSignature ? '' : this.makeQueryString(data);
-        const signature = crypto.createHmac('sha256', this.Options.APISECRET).update(query).digest('hex'); // set the HMAC hash header
+
+        const signature = this.generateSignature(query);
+
         if (method === 'POST') {
             const opt = this.reqObjPOST(
                 url,
@@ -670,6 +677,44 @@ export default class Binance {
         }
     }
 
+    generateSignature(query: string, encode = true) {
+        const secret = this.APISECRET || this.PRIVATEKEY;
+        let signature = '';
+        if (secret.includes ('PRIVATE KEY')) {
+            // if less than the below length, then it can't be RSA key
+            let keyObject: crypto.KeyObject;
+            try {
+                const privateKeyObj: crypto.PrivateKeyInput = { key: secret };
+
+                if (this.PRIVATEKEYPASSWORD) {
+                    privateKeyObj.passphrase = this.PRIVATEKEYPASSWORD;
+                }
+
+                keyObject = crypto.createPrivateKey(privateKeyObj);
+
+            } catch (e){
+                throw new Error(
+                    'Invalid private key. Please provide a valid RSA or ED25519 private key. ' + e.toString()
+                );
+            }
+
+            if (secret.length > 120) {
+                // RSA key
+                signature = crypto
+                    .sign('RSA-SHA256', Buffer.from(query), keyObject)
+                    .toString('base64');
+                if (encode) signature = encodeURIComponent (signature);
+                return signature;
+            } else {
+                // Ed25519 key
+                signature = crypto.sign(null, Buffer.from(query), keyObject).toString('base64');
+            }
+        } else {
+            signature = crypto.createHmac('sha256', this.Options.APISECRET).update(query).digest('hex'); // set the HMAC hash header
+        }
+        return signature;
+    }
+
     // --- ENDPOINTS --- //
 
     /**

src/types.ts

@@ -125,6 +125,8 @@ export type Callback = (...args: any) => any;
 export interface IConstructorArgs {
     APIKEY: string;
     APISECRET: string;
+    PRIVATEKEY: string; // when using RSA/EDCSA keys
+    PRIVATEKEYPASSWORD: string; // when using RSA/EDCSA keys
     recvWindow: number;
     useServerTime: boolean;
     reconnect: boolean;

tests/crypto.test.ts

@@ -0,0 +1,50 @@
+import Binance from '../src/node-binance-api';
+import { assert } from 'chai';
+
+
+const testCases = [
+    {
+        "description": "Unencrypted PKCS8 ed22519 private key",
+        "private_key": "-----BEGIN PRIVATE KEY-----\nMC4CAQAwBQYDK2VwBCIEIPQmzwVKJETqVd7L9E/DFbkvrOigy1tLL+9QF0mSn6dV\n-----END PRIVATE KEY-----\n",
+        "password": undefined,
+        "expected_signature": "a4Pm3p02D2HXtNfo3DBaVCe9Ov7kledewgYtGjekotFmZ5wXa3mC5AtLB7CpAphyNjeyovIuDP+9fyjYmsojCw==",
+    },
+    {
+        "description": "Unencrypted PKCS8 ed22519 private key in bytes",
+        "private_key": "-----BEGIN PRIVATE KEY-----\nMC4CAQAwBQYDK2VwBCIEIPQmzwVKJETqVd7L9E/DFbkvrOigy1tLL+9QF0mSn6dV\n-----END PRIVATE KEY-----\n",
+        "password": undefined,
+        "expected_signature": "a4Pm3p02D2HXtNfo3DBaVCe9Ov7kledewgYtGjekotFmZ5wXa3mC5AtLB7CpAphyNjeyovIuDP+9fyjYmsojCw==",
+    },
+    {
+        "description": "Encrypted PKCS8 RSA private key",
+        "private_key": "-----BEGIN ENCRYPTED PRIVATE KEY-----\nMIIFNTBfBgkqhkiG9w0BBQ0wUjAxBgkqhkiG9w0BBQwwJAQQWW+iEMYYCPUntrPq\nZ2RCMAICCAAwDAYIKoZIhvcNAgkFADAdBglghkgBZQMEASoEEIw3ViSuTp8JeN43\n5VGlHt0EggTQBvEzd2w2F561CzU+MDouZDOPj4RTIStC471z0/bxTgYqH3gYchoe\nOfi2lsLuD8B+ivIRuXB8GT66BIseIOMV8t/tiMe97rFI/cV4h6DrBO1xlmSrBG97\nvFF9qPA5yPRlrHtWKkGxhXteNVsT3w/7Y7KsulO/gA2KpsOElMElOhUP462Yd0Wl\nOxAIV3+knl2niozws2Kq3EdzTF3N6hlavUPryiU/w4RRsPN5qgjchVVLq/sYRYhx\nN8uWJbkjhCcHsULkD5KkdgddR0VOhpQPXIdY+gPkSBJq1ltRWy/TYdXiU2fEBNZW\nhFUVrxnS76+u2R3vukY2IAX8zTC6h2AbCBG+r4XXzgk/l/4peySKHsPQRzQ0in39\na9o5sctOmUNeD4uJ6cClXDdqyEwXhnPmRKZjJ8qeH4D9wl7HOG7iQsYiyfJe/igi\nFEXVRZOtLBdbwX45rU6wiWWjxzY+mDnw4BXE31ZBPwgtoh+CLTyK8NI8LnCV/CgO\nzOY4sm/KDWmbfTTZjLSdYRFj7wEpOdUWjZ13viDFZqnmy/o1auvLmBcqbRrCyW+B\nOMI7aHE0mZ/52vEFQYU1tH0BxMmRfWXUCJj0TjwxDY6BQmmW4YlhsrgGNekLFDo1\n6phFd0pA4UPqGXfNLzHp1dtLhUEb4YzcpDn+HMzMf1gfez7qeqU28nNFg/AwwqHZ\nTWdGclCFjiah7SfvOslob4vdLGwkUhgCBKQUQoU1DltX2GOgIv9SNY3q6X0NwdZG\nL5gqk225WVUwIRzmi5nfUEXlbaTvyHg3BuGedUKJ91IhRCW1ZjvU8GQcfVsu8bse\nTCKMdr7wi/zEZXSldCza6vL4m3tmBLtWkHVOW8bcDWvoVwRswbFHfleHzckl7EeC\n9C4TRa66gA5UOv14SrpC8noQUNpSegg+1KI4BSNvwaheiSUqjQbisb0qYCxML0ZP\nmQodwVsXG6LYo+Y6y6CpHbT7UYkfa59q/CGOZByL1bEzzgd98ZHwjihOjHVaV6sY\nBW018AvGxr7kjEU4LNqIteydTp0o31ZJN/qK78w5EQFfJxfImrx/E4nYKtg4higj\nKOQCgJALKIveidqQEFsbGWsulYrMXwnu0nPThofR1D8eCJZpdTxvOh2nIrNrAeY8\nZMAwG1uQos5A0yEZ1auHxz+rb4errnk92OnVlWnElf1TwwlkFFNLdNDl8VpiMP40\n6en9VtlOfgH8AwB03WsoeuEQsxYTIcRKWZZPRsLx3hd0BsOw0FcYDSX2XIGPkVVW\niYf9hzFSQsWV3d6utloIm4nG8XONfNaRimGECbUSZyHZimrO1m4Gga5pE3LKuDri\nJKR2lR7b6XPR7+FS+lG1zq5KY7onAVQY1oABfTjpJRju6pQGWt70hairo6EaVC3u\nrBy8UkLwBbfDuigSvsVk+sF2+Ic0IzX6IniU0F5kMe+MKqGB4aicXP6FFGBpPFTe\nv6yHD+DYAu1rnlXrqmFL50CfutTF78uPPJ9D2Sm0DcGPFj+6IrCigj48uxoHR9Qb\nFeNzfsmVwoFAWWq/MpkPbX6Aql8ddCbpMxDUUkybwVV9rJmEMTLil44FrxKAKFhP\n0Av7JeFvdz15pfnf/IQ3IOvVhHGFChFS13sbYSvFHMQF3P0BiyvjhBI=\n-----END ENCRYPTED PRIVATE KEY-----\n",
+        "password": "testpwd",
+        "expected_signature": "S4l9IONXGHIdt4NjwmpCIhawDTitjUQls73d+mi0HJTSbTGyn95NabX5hC9+n6HsTqLcWPvxKgTvLFMnTaf6Jxl+xwQMbu9/6mw88KF7i1pEQizerKcr91rPUPVBQ4OY10Q018QEamIAymRgo/eoRYSm7CqCdeibGyO0XfXZBaJnVGFJ9hgrPIwSKHgeUnfK8qMenULvL0qKMEJ6ziYPiqh7k9xX3xIV7lGIpokk+ekqlFd01f/Lov45osJCFuccJO4xuUUZewZnVGF7Uw6Rim3UsKhXKZUN9WZWa5RT+dpBIJ5DTBIXBSvowwj3GZC3j+XvWw8Sn0Ls9836l89BXw==",
+    },
+    {
+        "description": "Encrypted PKCS8 RSA private key in bytes",
+        "private_key": "-----BEGIN ENCRYPTED PRIVATE KEY-----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\n0Av7JeFvdz15pfnf/IQ3IOvVhHGFChFS13sbYSvFHMQF3P0BiyvjhBI=\n-----END ENCRYPTED PRIVATE KEY-----\n",
+        "password": "testpwd",
+        "expected_signature": "S4l9IONXGHIdt4NjwmpCIhawDTitjUQls73d+mi0HJTSbTGyn95NabX5hC9+n6HsTqLcWPvxKgTvLFMnTaf6Jxl+xwQMbu9/6mw88KF7i1pEQizerKcr91rPUPVBQ4OY10Q018QEamIAymRgo/eoRYSm7CqCdeibGyO0XfXZBaJnVGFJ9hgrPIwSKHgeUnfK8qMenULvL0qKMEJ6ziYPiqh7k9xX3xIV7lGIpokk+ekqlFd01f/Lov45osJCFuccJO4xuUUZewZnVGF7Uw6Rim3UsKhXKZUN9WZWa5RT+dpBIJ5DTBIXBSvowwj3GZC3j+XvWw8Sn0Ls9836l89BXw==",
+    },
+]
+
+describe('Test crypto signature', function () {
+
+    it('RSA and ed22519 tests ', function () {
+
+        const dataQuery = 'price=50000&quantity=1&side=BUY&symbol=BTCUSDT&timestamp=1631234567890&type=LIMIT'
+
+        for (const testCase of testCases) {
+            const binance = new Binance({
+                APISECRET: testCase.private_key,
+                PRIVATEKEYPASSWORD: testCase.password,
+            })
+
+            const signature = binance.generateSignature(dataQuery, false);
+            assert.equal(signature, testCase.expected_signature, testCase.description);
+        }
+
+    });
+
+});