OpenSSH 5.7で楕円DSA(ECDSA)が使えるようになったらしい。 OpenSSH 5.7 released[LWN.net] OpenSSH 5.7 has been released. Some new features in this release include Elliptic Curve Cryptography modes for key exchange (ECDH) and host/user keys (ECDSA), a protocol extension to support a hard link operation added to sftp, new options for scp and ssh, and more. 早くもGentooにopenssh-5.7が降りてきたので早速楕円DSAを作ってみた。Gentooパネェ。 楕円DSAの作り方