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Consider two substitution ciphers. One adds a value of i to the ASCII code of the plaintext character. The other adds a value of j to the plaintext character. All additions are modulo 256.
Now consider a double-encryption method that adds i to each plaintext character and then adds j to the resulting ciphertext character to get another ciphertext character. Again, all calculations are modulo 256.
How much more secure is this double encryption when compared with either single-encryption method?
In C++, how does inheritance promote code reuse
Discuss and explain how to hack the most common Web browser. Also include methods for securing Web browsers. Include at least two different Web browsers in your discussion.
What is the accuracy of a two-bit predictor, assuming the predictor starts off in the bottom left state? What if the pattern repeats forever?
Assume an open addressing hash table, with a load balance α given. What is the expected number of probs needed when searching a key x that is in the table. Note that the development shown in class was for the case that x is not in the table.
Based on your understanding of how AES was chosen, what is your opinion of the criteria used?
The case mentions the dependence of BP's IT organization on external contractors. Why would this be an issue? When is it a good idea for IT departments to hire contractors, and when is it not? Discuss some scenarios.
Write down some of the strategic advantages the VoIP brings to businesses that adopt it? Prior, voice and data networks were separate and typically maintained by separate groups.
Do 2-input AND gates which have one input inverted form a complete set of logic gates? Rationalize your answer.
You need to ship two GE Voluson 730 Ultrasound Systems from Wesley Hills, NY, USA to Bristol, UK for use in a new hospital (Southmead Hospital Bristol, NHS Trust) being built there. Prepare a request for quotation (RFQ) for the shipment of the mac..
Make-buy decision is the significant management prerogative. You are manager of software organization which has average software development cost of $20.00/LOC.
What are application of artificial intelligence in different fields and also explain it and what are application of artificial intelligence in computer science give an example?
Describe your chosen architecture pattern. Explain why you selected the architecture of this case study.Explain how your chosen pattern could be applied to this case study.
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