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The ElGamal signature scheme presented in class is weak against Existential Forgery. Here is the basic exis-
tential forgery attack. Choose u, v such that gcd(v, p ? 1) = 1. Compute r = y^v g^u mod p and s = ?rv^?1
mod p ? 1.
(a) Prove the claim that the pair (r, s) is a valid signature on the message m = su mod p ? 1.
(b) Suppose a hash function h is used and the signature must be valid for h(m) instead of m. Explain how
this scheme protects against existential forgery
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Some animation schemes comprise slide transitions and some don't. When would the transition be suitable? When would it not be suitable?
Describe in scholarly detail how you would use WBS as aid to finding staffing level requirements for project team?
What needs clarified? it's plainly stated use google to find 3 companies that specialize in computer forensics of those 3 companies write 2 or 3 paragraphs comparing what each company does.
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Write a program in assembly with the necessary comments that computes division of two integer numbers (Y by X) by consecutively subtracting X from Y.
Describe in detail a proposed system design that would address any consequences of executing the code and how your design would impact the system.
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