What is a cryptographic ignition key (CIK)?
Could you elaborate on the concept of a cryptographic ignition key (CIK)? In the realm of cryptocurrency and finance, it's crucial to understand the significance and functionality of such keys. I'm particularly interested in how a CIK differs from other cryptographic keys, what its main use cases are, and how it contributes to securing transactions and digital assets. Is it a type of encryption key? Does it play a role in authentication or authorization? Clarifying these points would greatly assist in grasping the fundamental importance of a CIK in today's cryptographic and financial landscape.