✨ Added recoverPublicKey util fn (#114)

* Added hashMessage to exports * ✨ Added splitSignature util fn * make gas price less flakey * ✨ Added `computeAddress` util fn (#116) * Added initial computeAddress fn, relies on ethers at the moment * Init computePublicKey util fn * ✨ Added computePublicKey util fn * 📝 Added documenation to computePublicKey * ⬆ Pre-commit hook package bump, added @noble/secp256k1 * ✨ Added `computePublicKey` util fn (#118) * Init computePublicKey util fn * ✨ Added computePublicKey util fn * 📝 Added documenation to computePublicKey * ⬆ Pre-commit hook package bump, added @noble/secp256k1 * 🧪 Pass computeAddress test * 📝 Add docs for computeAddress * 📝 Pre-commit script update readme and chains * 🧪 Pass tests with recoverPublicKey * 📝 Pre-commit script readme update Co-authored-by: daws.eth <dawsonbotsford@gmail.com>
dawsbot · May 5, 2022 · cb73951 · cb73951
1 parent b75c9b8
commit cb73951
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diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -34,19 +34,19 @@
   },
   "devDependencies": {
     "@types/body-parser": "^1.19.1",
-    "@types/eslint": "^8.4.1",
+    "@types/eslint": "^8.4.2",
     "@types/express": "^4.17.13",
     "@types/jest": "^27.4.1",
     "@types/jest-dev-server": "^5.0.0",
     "@types/node": "^16.10.1",
     "@types/prettier": "^2.4.4",
-    "@typescript-eslint/eslint-plugin": "^5.21.0",
-    "@typescript-eslint/parser": "^5.21.0",
+    "@typescript-eslint/eslint-plugin": "^5.22.0",
+    "@typescript-eslint/parser": "^5.22.0",
     "body-parser": "^1.19.0",
     "dotenv": "^16.0.0",
     "eslint": "^8.14.0",
     "eslint-plugin-jest": "^26.1.5",
-    "ethers": "^5.6.4",
+    "ethers": "^5.6.5",
     "express": "^4.17.1",
     "husky": "^7.0.4",
     "jest": "^27.5.1",
@@ -63,6 +63,7 @@
     "web3": "^1.7.3"
   },
   "dependencies": {
+    "@noble/secp256k1": "^1.5.5",
     "@types/big.js": "^6.1.3",
     "big.js": "^6.1.1",
     "isomorphic-unfetch": "^3.1.0",

diff --git a/readme.md b/readme.md
@@ -47,6 +47,8 @@
 - [Install](#install)
 - [🛠 Utils](#-utils)
   - [`arrayify`](#arrayify)
+  - [`computeAddress`](#computeaddress)
+  - [`computePublicKey`](#computepublickey)
   - [`concat`](#concat)
   - [`etherToGwei`](#ethertogwei)
   - [`etherToWei`](#ethertowei)
@@ -66,7 +68,9 @@
   - [`jsonRpcProvider`](#jsonrpcprovider)
   - [`keccak256`](#keccak256)
   - [`pack`](#pack)
+  - [`recoverPublicKey`](#recoverpublickey)
   - [`solidityKeccak256`](#soliditykeccak256)
+  - [`splitSignature`](#splitsignature)
   - [`stripZeros`](#stripzeros)
   - [`tinyBig`](#tinybig)
   - [`toChecksumAddress`](#tochecksumaddress)
@@ -147,6 +151,22 @@ arrayify('0x1', { hexPad: 'right' });
 
   <br/>
 
+#### [`computeAddress`](https://essential-eth.vercel.app/docs/api/modules#computeaddress)
+
+```typescript
+computeAddress(key: string): string
+```
+
+  <br/>
+
+#### [`computePublicKey`](https://essential-eth.vercel.app/docs/api/modules#computepublickey)
+
+```typescript
+computePublicKey(privKey: BytesLike): string
+```
+
+  <br/>
+
 #### [`concat`](https://essential-eth.vercel.app/docs/api/modules#concat)
 
 ```typescript
@@ -561,6 +581,14 @@ pack(types: Array<string>, values: Array<any>): string
 
   <br/>
 
+#### [`recoverPublicKey`](https://essential-eth.vercel.app/docs/api/modules#recoverpublickey)
+
+```typescript
+recoverPublicKey(digest: BytesLike, signature: SignatureLike): string
+```
+
+  <br/>
+
 #### [`solidityKeccak256`](https://essential-eth.vercel.app/docs/api/modules#soliditykeccak256)
 
 ```typescript
@@ -598,6 +626,40 @@ solidityKeccak256(types, values);
 
   <br/>
 
+#### [`splitSignature`](https://essential-eth.vercel.app/docs/api/modules#splitsignature)
+
+```typescript
+splitSignature(signature: SignatureLike): Signature
+```
+
+  <details>
+  <summary>View Example</summary>
+
+```js
+import { splitSignature } from 'essential-eth';
+
+// or in a require environment
+const { splitSignature } = require('essential-eth');
+```
+
+```javascript
+const signature = '0x60bc4ed91f2021aefe7045f3f77bd12f87eb733aee24bd1965343b3c27b3971647252185b7d2abb411b01b5d1ac4ab41ea486df1e9b396758c1aec6c1b6eee331b';
+splitSignature(signature);
+ {
+   r: "0x60bc4ed91f2021aefe7045f3f77bd12f87eb733aee24bd1965343b3c27b39716",
+   s: "0x47252185b7d2abb411b01b5d1ac4ab41ea486df1e9b396758c1aec6c1b6eee33",
+   _vs: "0x47252185b7d2abb411b01b5d1ac4ab41ea486df1e9b396758c1aec6c1b6eee33",
+   recoveryParam: 0,
+   v: 27,
+   yParityAndS: "0x47252185b7d2abb411b01b5d1ac4ab41ea486df1e9b396758c1aec6c1b6eee33",
+   compact: "0x60bc4ed91f2021aefe7045f3f77bd12f87eb733aee24bd1965343b3c27b3971647252185b7d2abb411b01b5d1ac4ab41ea486df1e9b396758c1aec6c1b6eee33"
+ }
+```
+
+  </details>
+
+  <br/>
+
 #### [`stripZeros`](https://essential-eth.vercel.app/docs/api/modules#stripzeros)
 
 ```typescript