Better function name

src/matrixrtc/MatrixRTCSession.ts

@@ -23,7 +23,7 @@ import { EventType } from "../@types/event";
 import { CallMembership, CallMembershipData } from "./CallMembership";
 import { Focus } from "./focus";
 import { MatrixError, MatrixEvent } from "../matrix";
-import { randomString, secureRandomBase64 } from "../randomstring";
+import { randomString, secureRandomBase64Url } from "../randomstring";
 import { EncryptionKeysEventContent } from "./types";
 import { decodeBase64, encodeUnpaddedBase64 } from "../base64";
 import { isNumber } from "../utils";
@@ -325,7 +325,7 @@ export class MatrixRTCSession extends TypedEventEmitter<MatrixRTCSessionEvent, M
         if (!userId) throw new Error("No userId");
         if (!deviceId) throw new Error("No deviceId");
 
-        const encryptionKey = secureRandomBase64(16);
+        const encryptionKey = secureRandomBase64Url(16);
         const encryptionKeyIndex = this.getNewEncryptionKeyIndex();
         logger.info("Generated new key at index " + encryptionKeyIndex);
         this.setEncryptionKey(userId, deviceId, encryptionKeyIndex, encryptionKey);

src/randomstring.ts

@@ -22,11 +22,10 @@ const LOWERCASE = "abcdefghijklmnopqrstuvwxyz";
 const UPPERCASE = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
 const DIGITS = "0123456789";
 
-export function secureRandomBase64(len: number): string {
+export function secureRandomBase64Url(len: number): string {
     const key = new Uint8Array(len);
     crypto.getRandomValues(key);
 
-    // encode to base64url as this value goes into URLs
     return encodeUnpaddedBase64Url(key);
 }