Please answer this question in through detail for a cyber security class: do not leave out anything.
Cryptography:
What are challenges and solutions for businesses in the use of cryptography for data storage and communications? What about law enforcement?
Will biometrics involve encryption? How are biometric technologies dependent on the use of cryptography? What is the future of PKI?
Acceptance of PKI solutions has been low. What would a "killer app" for PKI acceptance look like?