feat: improve code quality by bringing variables up to local level

Now able to run with Babel and other utilities

README.md

@@ -1,4 +1,3 @@
-
 # CRYSTALS-KYBER JavaScript
 
 <p align="center">
@@ -39,17 +38,17 @@ import {K768_KeyGen, K768_Encrypt, K768_Decrypt} from 'crystals-kyber';
 To use in your code:
 ```js
 // To generate a public and private key pair (pk, sk)
-var pk_sk = K768_KeyGen();
-var pk = pk_sk[0];
-var sk = pk_sk[1];
+let pk_sk = K768_KeyGen();
+let pk = pk_sk[0];
+let sk = pk_sk[1];
 
 // To generate a random 256 bit symmetric key (ss) and its encapsulation (c)
-var c_ss = K768_Encrypt(pk);
-var c = c_ss[0];
-var ss1 = c_ss[1];
+let c_ss = K768_Encrypt(pk);
+let c = c_ss[0];
+let ss1 = c_ss[1];
 
 // To decapsulate and obtain the same symmetric key
-var ss2 = K768_Decrypt(c,sk);
+let ss2 = K768_Decrypt(c,sk);
 ```
 Test output:
 ```bash

index.js

@@ -1,16 +1,16 @@
 import {KeyGen768, Encrypt768, Decrypt768} from './kyber768';
 
 export function K768_KeyGen(){
-    var pk_sk = KeyGen768();
+    let pk_sk = KeyGen768();
     return pk_sk;
 }
 
 export function K768_Encrypt(pk){
-    var c_ss = Encrypt768(pk);
+    let c_ss = Encrypt768(pk);
     return c_ss;
 }
 
 export function K768_Decrypt(c,sk){
-    var ss = Decrypt768(c,sk);
+    let ss = Decrypt768(c,sk);
     return ss;
 }

kyber512.js

@@ -1317,28 +1317,4 @@ console.log("ss2",ss2);
 
 // returns 1 if both symmetric keys are the same
 console.log(ArrayCompare(ss1, ss2));
-********************************************************/
-
-
-TestK512();
-
-// To generate a public and private key pair (pk, sk)
-var pk_sk = KeyGen512();
-var pk = pk_sk[0];
-var sk = pk_sk[1];
-
-// To generate a random 256 bit symmetric key (ss) and its encapsulation (c)
-var c_ss = Encrypt512(pk);
-var c = c_ss[0];
-var ss1 = c_ss[1];
-
-// To decapsulate and obtain the same symmetric key
-var ss2 = Decrypt512(c, sk);
-
-console.log("ss1", ss1);
-console.log("ss2",ss2);
-
-// returns 1 if both symmetric keys are the same
-console.log(ArrayCompare(ss1, ss2));
-
-// console.log(-12345 - Math.floor(-12345*(1/3329)) * 3329);
+********************************************************/