A certificate contains an identity, a public key, and signatures attesting that the public key belongs to the identity. Other fields that may be present include the organization (for example, university, company, or government) to which that identity belongs and perhaps suborganizations (college, department, program, branch, office). What security purpose do these other fields serve, if any? Explain your answer.

What will be an ideal response?

Sometimes these other fields are the keys to establishing trust.For instance, my use case may cause me to trust anyone with a valid US government email address, and having that email address be part of a certificate may be sufficient proof as long as I trust the certificate authority that issued the certificate to have validated that information.