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1. Decryption Speed
A certain cryptography vendor was providing an encryption technology that was breakable within 10 hours. Considering the continuous increase in computer speed, the company decided to increase the size of the encryption key so that the time to break the encryption become more than 250 hours. What should be the minimum key size increase to meet this objective?
Hint: Normally, the increase of a single bit in the size of the encryption key doubles the amount of needed computations.
2. Diffie-Hellman
You have agreed with your friend X that you will use the Diffie-Hellman public-key algorithm to exchange secret keys. You and X have agreed to use the public base g = 19 and public modulus p = 739. You have secretly picked the value SA = 5. You begin the session by sending X your calculated value of TA. X responds by sending you the value TB = 167. What is the value of your shared secret key? Show all your work.
3. Encryption
In a given encryption system where the messages are expressed only as numbers and "e" is an integer.
cyphertext = Part One: {int[(plaintext)^(1/e)]} Part Two: {plaintext -{int [(plaintext)^(1/e)]}^e}
Show how the recipient of the message, who knows "e", produces the plaintext.
Use whois at Network Solutions, netsol.com and/or whois.arin.net to find contact information and DNS servers for one organization. Also find the IP address range for their network. Print your results.
From your study of Asymmetric and symmetric key cryptography, use your own words
The general method for constructing the parameters of the RSA cryptosystem
The Internet evolution is and is very fast and the Internet exposes the connected computers to attacks and the subsequent losses are in rise.
use Microsoft Powerpoint to create your slides for a 15-minute presentation. It`s about Computer Hacking the same subject that you wrote in the report. You are going to take the same information that you wrote in the report and make it as slides.
Mini Case: Cisco Systems
Alice and Bob select the numbers 6 and 10 privately. What will be public values they transmit and what would be final secret computed?
Risk Management varies in each instance and event. Selecting the various options from home or work may help make or break your network.
Analyze specific potential malicious attacks and / or threats that could be carried out against the network and organization and explain in detail the potential impact of the three selected malicious attacks
Suppose that there is some consensus with basic premise that most skills can be learnt, which would you expect to be the more productive task,
What factors might an organization consider when choosing to implement an AD-integrated DNS zone versus a traditional zone? Describe a scenario in which it would be preferable
Describe the security features available on a platform of your choice (for example, Linux/Android/Mac OS X/Windows/Apache/Java/Perl), to mitigate a specific type of attack (for example, adware/malware/SQL injection/spoofing/tampering).
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