(20 points) A startup QuickE designed an encryption scheme QuickE for applications where messages never repeat. Therefore QuickE uses the deterministic and stateless ECB mode (where each block of the message is simply encrypted with the underlying blockcipher). QuickE claims that their protocol is secure against the modified IND-CPA definition, IND-DCPA, which is tailored for the applications with distinct messages. IND-DCPA is like IND-CPA, but the adversary is not allowed to query equal messages at any point. I.e., if and are any two left-right encryption queries made by the attacker, then all these messages must be distinct. Prove that QuickE scheme is not IND-DCPA. For simplicity assume that the message space of QuickE is the set of bitstrings, whose length is multiple of , where is the block length of the underlying blockcipher , which is a secure PRF.
Which of the following statements about mentoring as a devel…
Which of the following statements about mentoring as a development approach is FALSE?
Which of the following methods of needs assessment is inexpe…
Which of the following methods of needs assessment is inexpensive and allows for the collection of data from a large number of individuals?
Which traditional training method involves the MOST level of…
Which traditional training method involves the MOST level of interaction and participation from trainees?
Which of the following issues is addressed by task analysis?
Which of the following issues is addressed by task analysis?
One of the forces influencing training and learning today is…
One of the forces influencing training and learning today is an increasing value being placed on intangible assets, including ________, or the sum of the attributes, life experiences, knowledge, invnetivenss, energy, and enthsusiam that employees invest in their work.
According to the ________, transfer will be maximized when t…
According to the ________, transfer will be maximized when the tasks, materials, equipment, and other characteristics of the learning environment are similar to those encountered in the work environment.
You are the HR training and development professional for a l…
You are the HR training and development professional for a local organization. One of the customer service managers has expressed a need for training employees in how to deal with angry customers. Using the ADDIE model as a framework, briefly describe how you would use each element of the model to address the training need.
According to the 70-20-10 model, most employee development o…
According to the 70-20-10 model, most employee development occurs through which development approach?
Which of the following statements regarding explicit knowled…
Which of the following statements regarding explicit knowledge is TRUE?