diff --git a/static/js/modules/crypto/math.js b/static/js/modules/crypto/math.js
index 5a34866..5f33303 100644
--- a/static/js/modules/crypto/math.js
+++ b/static/js/modules/crypto/math.js
@@ -21,10 +21,14 @@ export function mod_inv(a, n) {
 
     while (new_r !== 0n) {
         let quotient = r / new_r;
+
+        let t_temp = t;
         t = new_t;
-        new_t = t - quotient * new_t;
+        new_t = t_temp - quotient * new_t;
+
+        let r_temp = r;
         r = new_r;
-        new_r = r - quotient * new_r;
+        new_r = r_temp - quotient * new_r;
     }
 
     if (t < 0) {
diff --git a/static/js/modules/crypto/rsa.js b/static/js/modules/crypto/rsa.js
index 2a6f124..5828d17 100644
--- a/static/js/modules/crypto/rsa.js
+++ b/static/js/modules/crypto/rsa.js
@@ -6,10 +6,10 @@ let p, q, pubKey, privKey;
 class PubKey {
     constructor(p, q) {
         this.n = p * q;
-        this.e = 65537;
+        this.e = 65537n;
     }
 
-    decrypt(m) {
+    encrypt(m) {
         return mod_exp(m, this.e, this.n);
     }
 }
@@ -17,10 +17,10 @@ class PubKey {
 class PrivKey {
     constructor(p, q) {
         this.n = p * q;
-        this.d = mod_inv(65537, (q - 1) * (p - 1));
+        this.d = mod_inv(65537n, (q - 1n) * (p - 1n));
     }
 
-    encrypt(c) {
+    decrypt(c) {
         return mod_exp(c, this.d, this.n);
     }
 }
diff --git a/static/js/modules/interface/main.js b/static/js/modules/interface/main.js
index 96557c0..62d092c 100644
--- a/static/js/modules/interface/main.js
+++ b/static/js/modules/interface/main.js
@@ -1,4 +1,4 @@
-import { generate_keypair } from "../crypto/main.js";
+import { generate_keypair, generate_rsa_keypair } from "../crypto/main.js";
 import { Random } from "./random.js";
 import { Barrier } from "./barrier.js";
 import { Packet } from "./packet.js";
@@ -10,8 +10,8 @@ export const game = new Game();
 export let socket;
 let random;
 let barrier;
-const paillier = generate_keypair();
-const rsa = generate_rsa_keypair();
+window.paillier = generate_keypair();
+window.rsa = generate_rsa_keypair();
 
 // Not totally reliable but better than nothing.
 window.addEventListener("beforeunload", () => {