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Announces new symmetric encryption scheme

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Reference no: EM133234733

Question 1. ConCrypt Inc. announces a new symmetric encryption scheme, CES. ConCrypt announces that CES uses a 128-bit keys, can encrypt any size message, and is five times faster than AES, and is the first practical cipher to be perfectly secure. Is there any method, process or experiment to validate or invalidate these claims? Describe or explain why not. [Hint: Recall the requirements for One Time Pad to be perfectly secret...]

Question 2. ConCrypt Inc. announces a new symmetric encryption scheme, CES512. ConCrypt announces that CES512 uses a 512-bit keys, and as a result, it must be much more secure than AES. Can you point out any concerns with using CES512 instead of AES?

Reference no: EM133234733

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