[1] [CITE@en[RFC 2985 - PKCS #9: Selected Object Classes and Attribute Types Version 2.0]]
([TIME[2014-12-28 18:45:38 +09:00]] 版)
<http://tools.ietf.org/html/rfc2985>

[2] [CITE@en[RFC 2985 - Status of this memo]]
([TIME[2016-06-19 16:47:38 +09:00]])
<https://tools.ietf.org/html/rfc2985>

[3] [CITE@en[RFC 7894 - Alternative Challenge Password Attributes for Enrollment over Secure Transport]]
([TIME[2016-06-23 20:15:41 +09:00]])
<https://tools.ietf.org/html/rfc7894>

[4] [CODE[DSIG]]