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Assume Trudy sees your RSA signature on m1 and m2 (i.e., she sees values m1d mod n and m2d mod n). Describe how Trudy can now calculate your signature on (m1j m2k) mod n for arbitrary integers j and k. (you will also require to describe how she can also compute m1-1 mod n) Briefly describe security implications of this capability.
You have taken a job with a software user who has contracted your previous employer to develop a system for them. However, you have also a responsibility of confidentiality to your previous employer.
An earlier version of WTLS supported a 40-bit XOR MAC and also supported RC4 stream encryption. Show that this scheme doesn't give message integrity protection.
Would it be reasonable to compute an RSA signature on a long message by ?rst computing what the message equals mod n, for some ?xed n and then signing this computed value only. Why or why not?
How are many chunks of code from many organizations really going to work together to provide a secure and reliable computing environment?
What password protection measures are normally implemented by system administrators, operating systems, and security services? Describe the pros and cons of enabling audits of resource accesse
Program "Encryption/Decryption"system only the code by using C programming work with PUTTY use Caesar cipher.
After completing the Unit reading on the subject, give your sense of the level of cyberphobia in the workplace and your suggestions on dealing with it as an IT manager.
Your goal is to identify the potential threats to a bank using mobile technology and rank them in terms of risk. To calculate risk, you will need to rank each threat in terms of severity and likelihood- ITECH3215-7215
Host the discussion with IT director and staff and let them know what you believe to be most significant of these extra complexities and reasons why you believe them to be difficult to manage.
Write a two- page letter to describe what security threats she is facing and how she can decraese these threats. Remember that you are writing for friend, not for a teacher.
You must include in your investigation protection of both transmitted information also sensitive data stored locally in computer databases.
How does RTSP differ from HTTP (a) in maintaining client state information; (b) in terms of in-band, out-of-band traffic?
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