changed number of steps for VDF, moved it to a constant

Author: sbazerque

examples/randomness-beacon/index.ts

@@ -22,7 +22,7 @@ import { BeaconValueOp } from './model/BeaconValueOp';
 import * as readline from 'readline';
 
 
-const STEPS = 66;
+const STEPS = 10000;
 
 function initResources(): Resources {
     return { store: new Store(new MemoryBackend(new RNGImpl().randomHexString(128))), mesh: new Mesh(), config: {}, aliasing: new Map()};

examples/randomness-beacon/model/BeaconValueOp.ts

@@ -3,6 +3,7 @@ import { Hashing, Hash, HashedObject, MutationOp } from 'data/model';
 import { Logger, LogLevel } from 'util/logging';
 
 import { Beacon } from './Beacon';
+import { VDF } from './VDF';
 
 const createVdf = require('@subspace/vdf').default;
 (global as any).document = { }; // yikes!
@@ -114,7 +115,7 @@ class BeaconValueOp extends MutationOp {
         const challengeBuffer = Buffer.from(challenge, 'hex');
         const resultBuffer = Buffer.from(this.vdfResult, 'hex');
 
-        if (!BeaconValueOp.vdfVerifier.verify(steps, challengeBuffer, resultBuffer, 2048, false)) {
+        if (!BeaconValueOp.vdfVerifier.verify(steps, challengeBuffer, resultBuffer, VDF.BITS, true)) {
             BeaconValueOp.log.trace('VDF verification failed.');
             return false;
         }

examples/randomness-beacon/model/VDF.ts

@@ -5,20 +5,22 @@ const createVdf = require('@subspace/vdf').default;
 
 class VDF {
 
+    static BITS = 1024;
+
     static log = new Logger(VDF.name, LogLevel.TRACE)
 
     static async compute(challenge: string, steps: number): Promise<string> {
 
         VDF.log.debug('Computing VDF...');
 
         const vdfInstance = await createVdf();
-        const result = vdfInstance.generate(steps, Buffer.from(challenge, 'hex'), 2048, false);
+        const result = vdfInstance.generate(steps, Buffer.from(challenge, 'hex'), VDF.BITS, true);
 
         VDF.log.debug('Done computing VDF.')
 
         const t = Date.now();
 
-        VDF.log.debug('VDF sekf verification: ' + vdfInstance.verify(steps, Buffer.from(challenge, 'hex'), result, 2048, false));
+        VDF.log.debug('VDF self verification: ' + vdfInstance.verify(steps, Buffer.from(challenge, 'hex'), result, VDF.BITS, true));
 
         const elapsed = Date.now() - t;