What are bag attributes in .pemfiles and do they matter in the file? I mean can use .pem files witho-CodePudding

Hello there, Currently working on a problem containing .pem file. The structure of the file is given as below:

Bag Attributes
     values
Key Attributes
     values
-----BEGIN PRIVATE KEY-----
    key
-----END PRIVATE KEY-----

So, do the bag attributes and key attributes matter in use? If yes, what is their purpose?

CodePudding user response：

Bag attributes are generated by OpenSSL during PFX conversion to PKCS#1/PKCS#8 PEM private key files. These attributes are not signed and are completely optional. See this thread for more information: What are bag attributes and how can i generate them?