Support for xrpl-secret-numbers encoded seed

package.json

@@ -16,7 +16,8 @@
     "grpc-web": "1.0.7",
     "ripple-address-codec": "4.1.1",
     "ripple-binary-codec": "0.2.6",
-    "ripple-keypairs": "^1.0.0"
+    "ripple-keypairs": "^1.0.0",
+    "xrpl-secret-numbers": "^0.2.1"
   },
   "scripts": {
     "build": "npm run clean && ./scripts/regenerate_protos.sh && npm run lint && tsc -d && copyfiles -u 3 './src/XRP/generated/**/*' ./build/src/XRP/generated",

src/XRP/wallet.ts

@@ -1,8 +1,8 @@
 import * as bip32 from 'bip32'
 import * as bip39 from 'bip39'
 import * as rippleKeyPair from 'ripple-keypairs'
-
-import Utils from '../Common/utils'
+import { Account as SecretNumbersAccount } from 'xrpl-secret-numbers'
+import Utils from './utils'
 
 /**
  * The default derivation path to use with BIP44.
@@ -132,6 +132,26 @@ class Wallet {
     }
   }
 
+  /**
+   * Generate a new wallet from the given secret numbers.
+   *
+   * @param secretNumbers The given seed for the wallet.
+   * @param test Whether the address is for use on a test network, defaults to `false`.
+   * @returns A new wallet from the given seed, or undefined if the seed was invalid.
+   */
+  public static generateWalletFromSecretNumbers(
+    secretNumbers: string | string[],
+    test = false,
+  ): Wallet | undefined {
+    try {
+      const account = new SecretNumbersAccount(secretNumbers)
+      const keyPair = account.getKeypair()
+      return new Wallet(keyPair.publicKey, keyPair.privateKey, test)
+    } catch (exception) {
+      return undefined
+    }
+  }
+
   /**
    * Create a new Wallet object.
    *

test/XRP/wallet.test.ts

@@ -215,6 +215,56 @@ describe('wallet', function (): void {
     assert.isUndefined(wallet)
   })
 
+  it('walletFromSecretNumbers - MainNet', function(): void {
+    // GIVEN a seed used to generate a wallet on MainNet
+    const seed = [
+      '554872',
+      '394230',
+      '209376',
+      '323698',
+      '140250',
+      '387423',
+      '652803',
+      '258676',
+    ]
+    const isTestNet = false
+
+    // WHEN a wallet is generated from the seed.
+    const wallet = Wallet.generateWalletFromSecretNumbers(seed, isTestNet)
+
+    // THEN the wallet has the expected address.
+    assert.equal(
+      wallet!.getAddress(),
+      'XVPCcgRJZmYGpSczab57QWbcoTnP2FQsKrCTFWughwrqBH2',
+    )
+  })
+
+  it('walletFromSecretNumbers - TestNet', function(): void {
+    // GIVEN a seed used to generate a wallet on TestNet
+    const seed = '554872 394230 209376 323698 140250 387423 652803 258676'
+    const test = true
+
+    // WHEN a wallet is generated from the seed.
+    const wallet = Wallet.generateWalletFromSecretNumbers(seed, test)
+
+    // THEN the wallet has the expected address.
+    assert.equal(
+      wallet!.getAddress(),
+      'TVKUp82HRjaHTxPb4QTEJWMXGtcUaQhnGBcv3U9UekYpy9T',
+    )
+  })
+
+  it('walletFromSecretNumbers - invalid seed', function(): void {
+    // GIVEN an invalid seed.
+    const seed = '554872 394230 209372 323695 140250 387423 652803 258676'
+
+    // WHEN a wallet is generated from the seed.
+    const wallet = Wallet.generateWalletFromSecretNumbers(seed)
+
+    // THEN the wallet is undefined.
+    assert.isUndefined(wallet)
+  })
+
   it('sign', function (): void {
     // GIVEN a wallet.
     const testData = derivationPathTestCases.index0