Why use this site?

Often we forget our dozen PIN numbers or sometimes it is hard to remember a new one. We would like to write it down somewhere in our pocket, but that's not save.

Does this sound familiar to you? This site helps you to securely write down your PIN numbers so you never forget them!

How it works

This site allows you to generate an encrypted PIN from your existing PIN using your secret one.
Encrypted PINs are secure to write down on paper and to carry around.
So instead of remembering all PINs you simply remember your one secret PIN and decrypt all other PINs as you need them.

To get your real PIN back just sum up your encrypted PIN with your secret one digit by digit. If your sum ends up containing two digits just ignore the first one. (e.g. 5+7 = 12 ⇒ 2)

Example:

                            
                                5627 // encrypted PIN
                                9796 // secret PIN
                                ----
                                4313 // decrypted/real PIN
                            
                        

Why should I trust you with my PIN?

This site generates the encrypted PIN via client side javascript. So everything you enter stays always on you computer and is safe and secure!

If you're still not convinced you can checkout the source code of this site and host it yourself!

Generate your encrypted PIN

Note: You should choose your secret PIN wisely and remember it!