What does a smart card typically store?

• A. Only personal identification details
• B. Authentication data and programs
• C. Physical keys
• D. Data only without processing capability

Answer: (B)

A smart card typically stores authentication data and programs, making it a versatile tool for secure identity verification and data protection. Smart cards have embedded microprocessors that allow them to not only store information but also to process it. This processing capability enables them to run applications and conduct secure transactions, often used in contexts such as banking, access control, and sensitive information storage.

Among the types of information stored on smart cards, authentication data is critical as it ensures that only authorized users can access specific systems or services. Additionally, smart cards can hold cryptographic keys, digital certificates, and programs that can perform various functions, such as encrypted data exchange or secure login processes. This combination of storage and processing allows smart cards to enhance security beyond just holding passive information.