[1] [CITE[KeygenPqgAttribute - doctype - The keygen pqg attribute - Project Hosting on Google Code]]
([TIME[2010-03-20 19:54:52 +09:00]] 版)
<http://code.google.com/p/doctype/wiki/KeygenPqgAttribute>

[2] [CITE@en-us[keygen - MDC]]
([TIME[2010-03-20 19:55:15 +09:00]] 版)
<https://developer.mozilla.org/En/HTML/Element/keygen>