A retail company is replacing its old point-of-sale (POS) system with a new cloud-based system. Management is concerned about system failures during the transition and does not want to completely shut down the old system until the new system has been fully tested in real operations. The company can afford some extra short-term costs in order to reduce operational risk. A. Identify the most appropriate conversion style for this situation and briefly justify your answer.B. Briefly explain why a business contingency plan is especially important during this type of system conversion.

Grover’s algorithm primarily impacts:

A system stores passwords as SHA-256(password). Best improvement:

True or False: ECB mode can reveal patterns in repeated plaintext blocks.

A common drawback of a KDC is:

Match the password storage to best practice:

ECB’s biggest issue is:

You see identical ciphertext blocks repeating in a large encrypted image. Most likely mode:

True or False: MACs provide non-repudiation because only the sender knows the key.

PKCS#7 padding adds: