0.1.1

.gitignore

@@ -1,2 +1,3 @@
 /node_modules
-.TODO
+.TODO
+.DS_Store

README.md

@@ -37,8 +37,10 @@ Parameters:
 - `options: ChallengeOptions`:
   - `algorithm?: string`: Algorithm to use (`SHA-1`, `SHA-256`, `SHA-512`, default: `SHA-256`).
   - `hmacKey: string` (required): Signature HMAC key.
+  - `maxNumber?: number` Optional maximum number for the random number generator (defaults to 1,000,000).
   - `number?: number`: Optional number to use. If not provided, a random number will be generated.
   - `salt?: string`: Optional salt string. If not provided, a random salt will be generated.
+  - `saltLength?: number` Optional maximum lenght of the random salt (in bytes, defaults to 12).
 
 ### `verifySolution(payload, hmacKey)`
 

dist/index.js

@@ -1,10 +1,13 @@
 import { ab2hex, hash, hmac, randomBytes, randomInt } from './helpers.js';
-const DEFAULT_MAX_NUMBER = 1e7;
+const DEFAULT_MAX_NUMBER = 1e6;
+const DEFAULT_SALT_LEN = 12;
 const DEFAULT_ALG = 'SHA-256';
 export async function createChallenge(options) {
     const algorithm = options.algorithm || DEFAULT_ALG;
-    const salt = options.salt || ab2hex(randomBytes(12));
-    const number = options.number === void 0 ? randomInt(DEFAULT_MAX_NUMBER) : options.number;
+    const maxNumber = options.maxNumber || DEFAULT_MAX_NUMBER;
+    const saltLength = options.saltLength || DEFAULT_SALT_LEN;
+    const salt = options.salt || ab2hex(randomBytes(saltLength));
+    const number = options.number === void 0 ? randomInt(maxNumber) : options.number;
     const challenge = await hash(algorithm, salt + number);
     return {
         algorithm,

dist/types.d.ts

@@ -8,8 +8,10 @@ export interface Challenge {
 export interface ChallengeOptions {
     algorithm?: Algorithm;
     hmacKey: string;
+    maxNumber?: number;
     number?: number;
     salt?: string;
+    saltLength?: number;
 }
 export interface Payload {
     algorithm: Algorithm;

lib/index.ts

@@ -6,16 +6,19 @@ import type {
   Payload,
 } from './types.js';
 
-const DEFAULT_MAX_NUMBER = 1e7;
+const DEFAULT_MAX_NUMBER = 1e6;
+const DEFAULT_SALT_LEN = 12;
 const DEFAULT_ALG: Algorithm = 'SHA-256';
 
 export async function createChallenge(
   options: ChallengeOptions
 ): Promise<Challenge> {
   const algorithm = options.algorithm || DEFAULT_ALG;
-  const salt = options.salt || ab2hex(randomBytes(12));
+  const maxNumber = options.maxNumber || DEFAULT_MAX_NUMBER;
+  const saltLength = options.saltLength || DEFAULT_SALT_LEN;
+  const salt = options.salt || ab2hex(randomBytes(saltLength));
   const number =
-    options.number === void 0 ? randomInt(DEFAULT_MAX_NUMBER) : options.number;
+    options.number === void 0 ? randomInt(maxNumber) : options.number;
   const challenge = await hash(algorithm, salt + number);
   return {
     algorithm,

lib/types.ts

@@ -10,8 +10,10 @@ export interface Challenge {
 export interface ChallengeOptions {
   algorithm?: Algorithm;
   hmacKey: string;
+  maxNumber?: number;
   number?: number;
   salt?: string;
+  saltLength?: number;
 }
 
 export interface Payload {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "altcha-lib",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "A library for creating and verifying ALTCHA challenges for Node.js, Bun and Deno.",
   "author": "Daniel Regeci",
   "license": "MIT",
@@ -29,6 +29,10 @@
     ".": {
       "types": "./dist/index.d.ts",
       "import": "./dist/index.js"
+    },
+    "./types": {
+      "types": "./dist/types.d.ts",
+      "import": "./dist/types.js"
     }
   },
   "typesVersions": {