kr - A dev tool for SSH auth + Git commit/tag signing using a key stored in Krypton.
kr enables SSH to authenticate with a key stored in a Krypton (iOS or Android) mobile app. kr runs as an SSH agent, called krd. When a Krypton private key operation is needed for authentication, krd routes this request to the paired mobile phone, where the user decides whether to allow the operation or not. The private key never leaves the phone. kr currently supports MacOS (10.10+) and Linux (Debian, RHEL, CentOS, Fedora with systemd).