Merge pull request #22 from AnandBaburajan/email

Fix encrypted email

.env.local.example

@@ -1 +1,2 @@
-NEXT_PUBLIC_ENCRYPTION_KEY=your_32_bit_key_here
+NEXT_PUBLIC_ENCRYPTION_KEY=your key of length 32 characters here
+NEXT_PUBLIC_ENCRYPTION_IV=your key of length 16 characters here

pages/poll/[id].tsx

@@ -30,7 +30,7 @@ const Poll = (props: {
   pollid: string;
 }): JSX.Element => {
   const { pollFromDB, pollid } = props;
-  const pollCreatorEmailID = decrypt(pollFromDB.emailID);
+  const pollCreatorEmailID = decrypt(pollFromDB.encryptedEmailID);
   const loggedInUserEmailID = useSelector(
     (state: RootState) => state.authReducer.username
   );

pages/poll/create.tsx

@@ -52,7 +52,7 @@ const Create = (): JSX.Element => {
       const poll: RocketMeetPoll = {
         title: pollTitle,
         description: pollDescription,
-        emailID: encryptedEmailID,
+        encryptedEmailID,
         choices: pollChoices,
       };
       const payload = JSON.stringify(poll);

src/components/PollInfo.tsx

@@ -8,15 +8,14 @@ dayjs.extend(localizedFormat);
 
 const PollInfo = (props: { poll: RocketMeetPollFromDB }): JSX.Element => {
   const { poll } = props;
-
   return (
     <div className="justify-content-center">
       <h1>{poll.title}</h1>
       {poll.description}
       <Alert variant={poll.open ? "success" : "secondary"}>
         {poll.open ? "OPEN" : "CLOSED"}
       </Alert>
-      By {decrypt(poll.emailID)} | Created on{" "}
+      By {decrypt(poll.encryptedEmailID)} | Created on{" "}
       {dayjs(poll.createdAt).format("DD/MM/YYYY")}
     </div>
   );

src/helpers/helpers.ts

@@ -12,29 +12,25 @@ export const isChoicePresentInPollChoices = (
 };
 
 const ENCRYPTION_KEY = process.env.NEXT_PUBLIC_ENCRYPTION_KEY || "";
+const ENCRYPTION_IV = process.env.NEXT_PUBLIC_ENCRYPTION_IV || "";
 
 export const encrypt = (text: string): string => {
-  const iv = crypto.randomBytes(16);
   let cipher = crypto.createCipheriv(
     "aes-256-cbc",
     Buffer.from(ENCRYPTION_KEY),
-    iv
+    ENCRYPTION_IV
   );
   let encrypted = cipher.update(text);
   encrypted = Buffer.concat([encrypted, cipher.final()]);
-  return JSON.stringify({
-    iv: iv.toString("hex"),
-    encryptedText: encrypted.toString("hex"),
-  });
+  return encrypted.toString("hex");
 };
 
 export const decrypt = (text: string): string => {
-  const iv = Buffer.from(JSON.parse(text).iv, "hex");
-  const encryptedText = Buffer.from(JSON.parse(text).encryptedText, "hex");
+  const encryptedText = Buffer.from(text, "hex");
   const decipher = crypto.createDecipheriv(
     "aes-256-cbc",
     Buffer.from(ENCRYPTION_KEY),
-    iv
+    ENCRYPTION_IV
   );
   let decrypted = decipher.update(encryptedText);
   decrypted = Buffer.concat([decrypted, decipher.final()]);

src/models/poll.ts

@@ -24,7 +24,7 @@ export interface RocketMeetPoll {
   title: string;
   description?: string;
   open?: boolean;
-  emailID: string; // encrypted email ID
+  encryptedEmailID: string;
   choices: Choice[];
   finalChoice?: Choice;
   votes?: Vote[];
@@ -35,7 +35,7 @@ export interface RocketMeetPollFromDB {
   title: string;
   description?: string;
   open?: boolean;
-  emailID: string; // encrypted email ID
+  encryptedEmailID: string;
   choices: ChoiceFromDB[];
   finalChoice?: ChoiceFromDB;
   votes?: VoteFromDB[];
@@ -46,6 +46,6 @@ export interface RocketMeetPollFromDB {
 
 export interface MailerArgs {
   pollid: string;
-  receiverIDs: string[],
-  senderID: string
+  receiverIDs: string[];
+  senderID: string;
 }