Fix bug in random generator. Correct a proof

static/js/paillier.js

@@ -3,13 +3,14 @@ let p, q, pubKey, privKey;
 class PubKey {
     constructor(p, q) {
         this.n = p * q;
-        this.g = this.n + 1n;
+        // this.g = this.n + 1n;
     }
 
     encrypt(m) {
         // Compute g^m r^n mod n^2
         let r = random2048();
 
+        // Resample to avoid modulo bias.
         while (r >= this.n) {
             r = random2048();
         }

static/js/random_primes.js

@@ -21,8 +21,8 @@ function generate_bigint() {
     // Drop the MSB to force into range from above
     intRepr >>= 1n;
 
-    // Add 2^127 to force into range from below
-    intRepr += 2n ** 127n;
+    // Add 2^2047 to force into range from below
+    intRepr += 2n ** 2047n;
 
     return intRepr;
 }