Sigma Technology is a company based in Singapore, with branches in 24 countries. It needs multiple CAs in different locations to
verify and sign digital certificates for the company. They are looking for an option where, even in the absence of a CA, other CAs can issue the certificates. Additionally, they are also looking for CAs who will overlook other CAs in different locations. In such a scenario, which PKI trust model should they use
PKI trust model that should be used, is a distributed trust model.
A distributed trust is a trust model that gives power to different source while taking the power away from a single source and thereafter, shares that responsibility to the wide range of sources. It is important as it allows trust to flows through network, marketplaces and forums.
With the use of this distributed trust model, Sigma Technology can have multiple CAs in different locations to work on behalf of the company. And even if one is absence, other CAs can still issue certificate without any hindrances.
Conclusively, we can say that PKI trust model that should be used is a distributed trust model.
Similar to a computer, the human brain is like a storage unit of information and operator for the human body. Though the brain can hold more info than a computer, both are used to complete various tasks.
