refactor(eos): migrate from eosjs-ecc to elliptic (#535)

.yarnrc.yml

@@ -7,3 +7,8 @@ plugins:
     spec: "@yarnpkg/plugin-typescript"
   - path: .yarn/plugins/@yarnpkg/plugin-interactive-tools.js
     spec: "@yarnpkg/plugin-interactive-tools"
+
+packageExtensions:
+  "eosjs@*":
+    dependencies:
+      "bn.js": "4.11.6"

packages/platform-sdk-eos/package.json

@@ -23,14 +23,17 @@
 		"@arkecosystem/platform-sdk": "workspace:packages/platform-sdk",
 		"@arkecosystem/platform-sdk-crypto": "workspace:packages/platform-sdk-crypto",
 		"@arkecosystem/platform-sdk-support": "workspace:packages/platform-sdk-support",
-		"eosjs": "^20.0.3",
-		"eosjs-ecc": "^4.0.7",
+		"bn.js": "4.11.6",
+		"elliptic": "^6.5.3",
+		"eosjs": "^21.0.2",
 		"node-fetch": "^2.6.0",
 		"yup": "^0.29.1"
 	},
 	"devDependencies": {
 		"@ledgerhq/hw-transport-mocker": "^5.19.0",
 		"@sindresorhus/tsconfig": "^0.7.0",
+		"@types/bn.js": "4.11.6",
+		"@types/elliptic": "6.4.12",
 		"@types/eslint": "^7.2.0",
 		"@types/eslint-plugin-prettier": "^3.1.0",
 		"@types/hapi__joi": "17.1.4",

packages/platform-sdk-eos/src/crypto.ts

@@ -0,0 +1,10 @@
+import { PrivateKey, PublicKey, Signature } from "eosjs/dist/eosjs-jssig";
+
+export const privateToPublic = (mnemonic: string): string =>
+	PrivateKey.fromString(mnemonic).getPublicKey().toLegacyString();
+
+export const sign = (data: string, privateKey: string): string =>
+	PrivateKey.fromString(privateKey).sign(data, true, "utf8").toString();
+
+export const verify = (signature: string, data: string, publicKey: string): boolean =>
+	Signature.fromString(signature).verify(data, PublicKey.fromString(publicKey), true, "utf8");

packages/platform-sdk-eos/src/services/identity/public-key.ts

@@ -1,5 +1,6 @@
 import { Contracts, Exceptions } from "@arkecosystem/platform-sdk";
-import { privateToPublic } from "eosjs-ecc";
+
+import { privateToPublic } from "../../crypto";
 
 export class PublicKey implements Contracts.PublicKey {
 	public async fromMnemonic(mnemonic: string): Promise<string> {

packages/platform-sdk-eos/src/services/identity/wif.ts

@@ -1,8 +1,7 @@
-import { Contracts } from "@arkecosystem/platform-sdk";
-import { seedPrivate } from "eosjs-ecc";
+import { Contracts, Exceptions } from "@arkecosystem/platform-sdk";
 
 export class WIF implements Contracts.WIF {
 	public async fromMnemonic(mnemonic: string): Promise<string> {
-		return seedPrivate(mnemonic);
+		throw new Exceptions.NotSupported(this.constructor.name, "fromMnemonic");
 	}
 }

packages/platform-sdk-eos/src/services/message.ts

@@ -1,6 +1,7 @@
 import { Coins, Contracts } from "@arkecosystem/platform-sdk";
 import { BIP39 } from "@arkecosystem/platform-sdk-crypto";
-import ecc from "eosjs-ecc";
+
+import { privateToPublic, sign, verify } from "../crypto";
 
 export class MessageService implements Contracts.MessageService {
 	public static async construct(config: Coins.Config): Promise<MessageService> {
@@ -16,12 +17,12 @@ export class MessageService implements Contracts.MessageService {
 
 		return {
 			message: input.message,
-			signatory: ecc.privateToPublic(mnemonic),
-			signature: ecc.sign(input.message, mnemonic),
+			signatory: privateToPublic(mnemonic),
+			signature: sign(input.message, mnemonic),
 		};
 	}
 
 	public async verify(input: Contracts.SignedMessage): Promise<boolean> {
-		return ecc.verify(input.signature, input.message, input.signatory);
+		return verify(input.signature, input.message, input.signatory);
 	}
 }