Safe & Fast APK Downloads on APKPure
APKPure uses signature verification to ensure virus-free SKey APK downloads for you.
SKey MD5 one time password for openssh
SKey app implementation for MD5 one time password.
https://en.wikipedia.org/wiki/S/KEY
http://www.openbsd.org/cgi-bin/man.cgi/OpenBSD-current/man1/otp-md5.1?query=skey&sec=1
One-click to install XAPK/APK files on Android!