Merge pull request #6 from multiparty/dependencies

Force key to be of hex format

Author: frederickjansen

package.json

@@ -38,30 +38,30 @@
   },
   "homepage": "https://github.com/multiparty/oprf#readme",
   "dependencies": {
-    "bn.js": "^4.11.8",
-    "coveralls": "^3.0.2",
-    "elliptic": "^6.4.0"
+    "bn.js": "5.0.0",
+    "elliptic": "6.5.1"
   },
   "devDependencies": {
-    "@types/chai": "^4.1.4",
-    "@types/mocha": "^5.2.3",
-    "@types/node": "^10.3.6",
-    "chai": "^4.1.2",
-    "libsodium-wrappers-sumo": "^0.7.3",
+    "@types/chai": "^4.1.7",
+    "@types/mocha": "^5.2.7",
+    "@types/node": "^10.14.13",
+    "chai": "^4.2.0",
+    "coveralls": "^3.0.4",
+    "libsodium-wrappers-sumo": "0.7.3",
     "mocha": "^5.2.0",
-    "nyc": "^12.0.2",
-    "sinon": "^6.3.5",
+    "nyc": "^14.1.1",
+    "sinon": "^7.3.2",
     "source-map-support": "^0.5.6",
-    "ts-loader": "^4.4.2",
+    "ts-loader": "^4.5.0",
     "ts-node": "^7.0.0",
-    "tslint": "^5.10.0",
-    "typedoc": "^0.13.0",
+    "tslint": "^5.18.0",
+    "typedoc": "^0.15.0",
     "types-bn": "0.0.1",
     "typescript": "^2.9.2",
-    "webpack": "^4.14.0",
-    "webpack-cli": "^3.0.8"
+    "webpack": "^4.40.2",
+    "webpack-cli": "^3.3.9"
   },
   "peerDependencies": {
-    "libsodium-wrappers-sumo": "^0.7.3"
+    "libsodium-wrappers-sumo": "0.7.3"
   }
 }

src/oprf.ts

@@ -98,7 +98,7 @@ export class OPRF {
   /**
    * Salts a point using a key as a scalar
    * @param point number array representation of a masked point
-   * @param key private key of server
+   * @param key private key of server in hex format
    * @returns {string} salted point in hex format
    */
   public scalarMult(point: number[], key: string): number[] {
@@ -107,7 +107,7 @@ export class OPRF {
       throw new Error('Input is not a valid ED25519 point.');
     }
 
-    const scalar: BN = new BN(key);
+    const scalar: BN = new BN(key, 16);
     // point: elliptic point
     const p = this.ed.decodePoint(point);
 

test/oprf.spec.ts

@@ -136,7 +136,7 @@ describe('End-to-End', () => {
     const hashedPoint = oprf.hashToPoint(input);
     const result = oprf.scalarMult(hashedPoint, scalarKey);
 
-    const known_result = [104, 232, 164, 133, 219, 182, 80, 68, 105, 227, 199, 179, 193, 54, 190, 2, 98, 151, 102, 236, 117, 228, 252, 88, 186, 89, 224, 226, 27, 186, 238, 126];
+    const known_result = [67, 211, 62, 241, 3, 58, 144, 120, 39, 14, 255, 148, 90, 209, 115, 56, 238, 5, 58, 143, 33, 206, 223, 209, 240, 173, 177, 214, 71, 88, 131, 222];
     expect(unmasked).to.deep.equals(result).to.deep.equals(known_result);
   });
 
@@ -236,7 +236,7 @@ describe('Expected Behavior', () => {
     const unmasked2 = oprf.unmaskInput(salted2, masked2.mask);
     const unmasked3 = oprf.unmaskInput(salted3, masked3.mask);
 
-    const known_output = [44,  245,  118,  84,  55,  249,  213,  84,  216,  193,  217,  165,  140,  215,  79,  3,  249,  81,  22,  79,  170,  98,  92,  55,  88,  56,  55,  186,  101,  169,  232,  31];
+    const known_output = [221, 1, 0, 60, 186, 172, 201, 218, 147, 12, 254, 230, 80, 113, 61, 205, 21, 27, 0, 213, 57, 192, 34, 56, 82, 185, 185, 153, 8, 250, 191, 19];
 
     expect(unmasked1).to.deep.equals(unmasked2).to.deep.equals(unmasked3).to.deep.equals(known_output);
   });