PKCS

In cryptography, PKCS refers to a group of Public Key Cryptography Standards devised and published by RSA Security.

 

PKCS #7 Cryptographic Message Syntax Standard

PKCS #8  Private-Key Information Syntax Standard.

PKCS #10 Certification Request Standard

PKCS #12 Personal Information Exchange Syntax Standard (PFX文件用的就是这个标准，用来存储私钥)

 

参考资料：http://en.wikipedia.org/wiki/PKCS