Allow seeds to be salted (for release)

BashPrime · BashPrime · commit ee8c94e077ce · 2020-03-22T01:05:17.000-07:00
diff --git a/src/electron/models/prime/randomizerSettings.ts b/src/electron/models/prime/randomizerSettings.ts
@@ -74,12 +74,15 @@ export class PrimeRandomizerSettings extends RandomizerSettings {
     }
   }
 
-  getNumericSeed(): number {
+  getNumericSeed(salt?: string): number {
     if (!this.seed) {
       throw new Error('Cannot get numeric seed. Settings seed is undefined or null (' + this.seed + ')');
     }
 
-    const stringToBeHashed = this.toSettingsString() + this.seed;
+    let stringToBeHashed = this.toSettingsString() + this.seed;
+    if (salt) {
+      stringToBeHashed = stringToBeHashed.concat(crypto.createHash('sha256').update(salt).digest('hex'));
+    }
     const sha256Hash = crypto.createHash('sha256').update(stringToBeHashed).digest('hex');
 
     return Utilities.parseSafeIntegerFromSha256(sha256Hash);

Original file line number	Diff line number	Diff line change
`@@ -74,12 +74,15 @@ export class PrimeRandomizerSettings extends RandomizerSettings {`
`74`	`74`	`}`
`75`	`75`	`}`
`76`	`76`
`77`		`- getNumericSeed(): number {`
	`77`	`+ getNumericSeed(salt?: string): number {`
`78`	`78`	`if (!this.seed) {`
`79`	`79`	`throw new Error('Cannot get numeric seed. Settings seed is undefined or null (' + this.seed + ')');`
`80`	`80`	`}`
`81`	`81`
`82`		`- const stringToBeHashed = this.toSettingsString() + this.seed;`
	`82`	`+ let stringToBeHashed = this.toSettingsString() + this.seed;`
	`83`	`+ if (salt) {`
	`84`	`+ stringToBeHashed = stringToBeHashed.concat(crypto.createHash('sha256').update(salt).digest('hex'));`
	`85`	`+ }`
`83`	`86`	`const sha256Hash = crypto.createHash('sha256').update(stringToBeHashed).digest('hex');`
`84`	`87`
`85`	`88`	`return Utilities.parseSafeIntegerFromSha256(sha256Hash);`