bls basic tests

.babelrc

@@ -1,3 +1,3 @@
 {
-  "presets": ["react-native"]
+  "presets": ["env", "react-native"]
 }

__tests__/services/bls.ts

@@ -1,6 +1,20 @@
-describe('bls sigs', () => {
-    it('should be able to sign and verify', () => {
-        const b = true
-        expect(b).toEqual(true)
-    })
+import * as Sigs from '../../src/services/signatures'
+import * as bls from 'bls-wasm';
+
+test('bls', async () => {
+
+        const sigs: Sigs.ISignatures = await Sigs.InitSignaturesLib();
+
+        const sk = sigs.NewSecretKey();
+        sk.dump('Private key: ');
+
+        const pk = sk.getPublicKey();
+        pk.dump('Public key: ');
+        const msg = "Spacemesh rocks";
+
+        const sig = sk.sign(msg);
+        sig.dump('Signature: ');
+
+        expect(pk.verify(sig, msg)).toEqual(true);
+    });
 })

package.json

@@ -49,8 +49,9 @@
     "@types/react-router-native": "^4.2.3",
     "@types/react-test-renderer": "^16.0.1",
     "@types/redux-logger": "^3.0.6",
-    "babel-core": "^6.0.0",
-    "babel-jest": "23.0.1",
+    "babel-core": "^6.26.3",
+    "babel-jest": "^23.6.0",
+    "babel-preset-env": "^1.7.0",
     "babel-preset-react-native": "4.0.0",
     "babel-runtime": "^6.23.0",
     "concurrently": "^3.5.1",
@@ -74,8 +75,7 @@
     "wait-on": "^2.0.2"
   },
   "babel": {
-    "presets": [
-      "react-native"
+    "presets": ["env", "react-native"
     ]
   },
   "jest": {

src/services/signatures.ts

@@ -1,7 +1,10 @@
-import {bls} from 'bls-wasm';
+import * as bls from 'bls-wasm';
 
 export interface ISignatures {
 
+    // Returns a new random bls.SecretKey
+    NewSecretKey() : bls.SecretKey;
+
     // Returns a new bls.SecretKey from the provided random seed
     NewSecretKeyFromSeed(hexStr: string) : bls.SecretKey;
 
@@ -18,7 +21,7 @@ export interface ISignatures {
     Verify(pub: bls.PublicKey, sig: bls.Signature, m: string) : boolean;
 }
 
-export async function InitSignaturesLib() : Promise<ISignatures> {
+export async public function InitSignaturesLib() : Promise<ISignatures> {
     const sig = new Signatures();
     await sig.Init();
     return sig;
@@ -35,25 +38,32 @@ export class Signatures implements ISignatures {
   // Returns a new BLS secret key from provided random seed
   // Hex string of random seed. e.g. 0x0214aef
   public NewSecretKeyFromSeed(hexStr: string) : bls.SecretKey {
-      const sec = bls.SecretKey();
+      const sec = new bls.SecretKey();
       const a = bls.fromHexStr(hexStr);
       sec.setLittleEndian(a);
       return sec;
   }
 
   // Returns a new secret key from its hex string serielized form
-  public NewSecretKeyFromHex(hexStr: string) : bls.SecretKey {
-      const sec = bls.SecretKey();
+  public NewSecretKeyFromHex(hexStr: string): bls.SecretKey {
+      const sec = new bls.SecretKey();
       sec.deserialize(hexStr);
       return sec;
   }
 
+  // Returns a new secret key from the provided crypto prng
+  public NewSecretKey(): bls.SecretKey {
+      const sec: bls.SecretKey = new bls.SecretKey();
+      sec.setByCSPRNG();
+      return sec;
+  }
+
   // Returns a new private key determinstically derived from sec and index idx
   // Used in HW wallet implementation. See relevant BIPs
   public GenerateSecretDerivedKey(sec: bls.SecretKey, idx: number) : bls.SecretKey {
       // todo: implement key deriviation
-      const sec1 = bls.SecretKey();
-      sec1.setByCPRNG();
+      const sec: bls.SecretKey = new bls.SecretKey();
+      sec.setByCPRNG();
       return sec1;
   }