In most of this chapter, we assumed that cryptography was being used to protect data in a communication scenario. However, cryptography can also be used to protect stored data. Which of the issues that we discussed in this chapter are exactly the same regardless of whether cryptography is being used to protect transmitted data or stored data, and which of these are subtly different? (You might like to consider who the likely players are in the basic model of a cryptosystem being used to protect stored data, which security questions they might ask, etc.)