Secret Keeper

(whisper) I gave you a lock I kept the key You can lock it for me But you can't open it back

(whisper) The lock is public Anyone can have it The key is private Only I have that

So if you want to send me a secret Take my lock Click it shut around your message Drop it in the mail

The whole world can see the box The whole world can see the lock The whole world cannot Get in

I'm the secret keeper I'm the secret keeper You can hand me anything Locked up tight

I'm the secret keeper I'm the secret keeper The key is in my pocket And the math is on my side

(whisper) It's called asymmetric Two keys, not one One you give away One you never share

The lock and the key Are not the same thing That's the trick That's the whole entire trick

You can shout the lock from the rooftops PUT THE LOCK ON A BILLBOARD! Doesn't matter Doesn't matter The key never leaves my hand

I'm the SECRET KEEPER! I'm the SECRET KEEPER! Send me anything you want The math will hold the line

I'm the SECRET KEEPER! I'm the SECRET KEEPER! A million locks, one key And the key is mine

(whisper) Your phone is doing this Your bank is doing this The little green lock in the browser Is doing this right now

A lock the world can use A key only you can hold Asymmetric, asymmetric The oldest new idea

(whisper) Click.