A convenient security key for developers

Universal 2nd Factor

SSH Server Auth

Git Commit Signing

                
                Krypton ▶ Requesting SSH authentication from phone                
            
                Krypton ▶ Success. Request Allowed ✔

ssh root@server

Do you want to sign in?

Yes

Allow for 3 hours

Strong public key authentication

Web Two-Factor U2F Security Key

Sign Git commits and Tags using PGP

The private key never leaves your phone

Get started in a few steps

Download

Install `kr` and Pair

$curl https://krypt.co/kr | sh

$kr pair

Unbeatable Security

SSH

No more sensitive plain-text private keys floating around developer laptops, desktops, and servers. The private keys never leave your phone.

Web

Krypton implements the standardized FIDO Universal 2nd Factor (U2F) protocol to provide secure, un-phishable two-factor authentication on the web, using just your phone.

End-to-end Secure

Krypton is built on top of an end-to-end verified and encrypted architecture. This means zero trust. We, Krypt.co, cannot access your keys or see where you're authenticating. The keys only live in the Krypton app on your phone.

Public Source

Zero Trust

U2F
FIDO

SSH
OpenSSH

PGP
Git Signing

Secure Enclave
iOS

Keystore
Android

WebAuthn

Learn about Krypton's Security

github.com/kryptco

Star

A convenient security key for developers

Download

Install kr and Pair

Have questions? hello@krypt.co

Install `kr` and Pair