An end to end encryption tool in a single html file. (e2ev2 stands for End 2 End v2. v1 was vibecoded and I am ashamed to admit so.)
Exchange your public key with whoever you are chatting with. After that type your message and press encrypt to encrypt and decrypt to... decrypt.
Optionally: Click Here to Go to Website
This has NO backend whatsoever so you will have to use an already existing backend like google chat. This project was originally intended to be used to securely send messages on google chat.
This is NOT completely safe. One problem with the web is that any browser extension can spy on you.
(For the 1 person who actually cares) This uses the elliptical curve diffie hellman algorithm to exchange a key which is then used for AES-GCM symmetric encryption.
I should: add double ratchet algorithm (changes the shared secret every time), add message history
Me, somebody on TN named gkgoat for support (THANK YOU SO MUCH). Also whoever made the crypto api and these functions: arrayBufferToBase64 base64ToArrayBuffer
(Clearly its not vibecoded, look at commits)