Hierarchical trust model

1. What is a hierarchical trust model?
2. What are the main components of hierarchical trust model?
3. What is PKI trust model?
4. Which protocol uses the hierarchical trust model?

What is a hierarchical trust model?

2.1 Hierarchical Trust Model. The hierarchical trust model is like an upside-down tree structure, root is the starting point of trust [3]. All nodes of the model have to trust the root CA, and keep a root CA's public-key certificate [4].

What are the main components of hierarchical trust model?

The major components that make up PKI are the public key cryptography (PKC) and the certification infrastructure. The certification infrastructure provides for the creation, storage, and communication of digital certificates; which is managed by the certification authority.

What is PKI trust model?

Definition. Public-key infrastructure (PKI) manages trust in electronic transactions. The principal elements used for maintaining that trust are the contents of the certificates and the security safeguards in effect in the environments of the various parties involved.

Which protocol uses the hierarchical trust model?

The X. 509 protocols rely on a hierarchical trust model. In this trust model Certification Authorities (CAs) are used to certify entities.