Alice encrypts the message (P_1, \ldots, P_5)(P 1 ,…,P 5 ). Unfortunately, the block C_2C 2 of the ciphertext is lost in transmission, so that Bob recieves (C_0, C_1, C_3, C_4, C_5)(C 0 ,C 1 ,C 3 ,C 4 ,C 5 ). Assuming that Bob knows that he is missing the second ciphertext block C_2C 2 , which blocks of the original plaintext can Bob recover?

The great length of north america causes the climate to be varied. true false

Need asap write a short paper describing the history and differences between six sigma, waterfall, agile, and scrum models. understanding these models can give you a good idea of how diverse and interesting it development projects can be. describe what the rationale for them is and describe their key features. describe the history behind their development. at least 400 words

Martha is designing a single-player game. her manager suggests that she plan the design to incorporate future modifications. which principle of game design relates to planning for future modifications?