View difference between Paste ID: W9UPPrcp and n9tn9gSU

 const libsodium          = require('libsodium-wrappers');
 const concat_typed_array = require("concat-typed-array");
 const nonce_length       = libsodium.crypto_aead_xchacha20poly1305_ietf_NPUBBYTES;
 
-(async () => {
+
-	await libsodium.ready;
+module.exports = class Sodium {
-}).then(function(){
+	ready() {
-	module.exports = class Sodium {
+		return libsodium.ready;
-		constructor(key){
+
-			 if(key === null) {
+
-				 throw "Sodium: Private key not set."
+	setKey(key){
-			 }
+		 if(key === null) {
-
+			 throw "Sodium: Private key not set."
-			this.key = libsodium.from_hex(key);
+		 }
-		}
+
-
+		this.key = libsodium.from_hex(key);
-		encrypt(plaintext){
+
-			var nonce      = libsodium.randombytes_buf(nonce_length),
+
-			    ciphertext = libsodium.crypto_aead_xchacha20poly1305_ietf_encrypt(plaintext, null, nonce, nonce, this.key);
+	encrypt(plaintext){
 		var nonce      = libsodium.randombytes_buf(nonce_length),
-			console.log("nonce", nonce);
+		    ciphertext = libsodium.crypto_aead_xchacha20poly1305_ietf_encrypt(plaintext, null, nonce, nonce, this.key);
-			console.log("ciphertext", ciphertext);
+
 		console.log("nonce", nonce);
-			return concat_typed_array(Uint8Array, nonce, ciphertext);
+		console.log("ciphertext", ciphertext);
-		}
+
-
+		return concat_typed_array(Uint8Array, nonce, ciphertext);
-		decrypt(encryption){
+
-			var nonce      = encryption.slice(0, nonce_length),
+
-			    ciphertext = encryption.slice(nonce_length);
+	decrypt(encryption){
 		var nonce      = encryption.slice(0, nonce_length),
-			console.log("nonce", nonce);
+		    ciphertext = encryption.slice(nonce_length);
-			console.log("ciphertext", ciphertext);
+
-
+		console.log("nonce", nonce);
-			return libsodium.crypto_aead_xchacha20poly1305_ietf_decrypt(nonce, ciphertext, null, nonce, this.key, "text");
+		console.log("ciphertext", ciphertext);
-		}
+
 		return libsodium.crypto_aead_xchacha20poly1305_ietf_decrypt(nonce, ciphertext, null, nonce, this.key, "text");
 	}
 }
 
 
 
 // other file:
 
 const Sodium = require('./sodium');
 
 const sodium = new Sodium();
 
 sodium.ready().then(() => {
 	sodium.setKey(...);
 	sodium.encrypt(...);
 
 	//...
 });