[1] RSA Laboratories - Public-Key Cryptography Standards (PKCS) ( 版) http://www.emc.com/emc-plus/rsa-labs/standards-initiatives/public-key-cryptography-standards.htm

The Public-Key Cryptography Standards are specifications produced by RSA Laboratories in cooperation with secure systems developers worldwide for the purpose of accelerating the deployment of public-key cryptography. First published in 1991 as a result of meetings with a small group of early adopters of public-key technology, the PKCS documents have become widely referenced and implemented.

[2] PKCS - Wikipedia, the free encyclopedia ( 版) http://en.wikipedia.org/wiki/PKCS

[3] RFC 7292 - PKCS #12: Personal Information Exchange Syntax v1.1 ( 版) https://tools.ietf.org/html/rfc7292#appendix-G

Further development of PKCS occurs through the IETF. Suggestions for improvement are welcome.