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Cryptography


Cryptography

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VM-723206
VM-723206
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Comments posted to this topic are about the item Cryptography
Andeavour
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Doesn't the "Hybrid approach of one or more of the above" answer in fact cover the above answers? I know it was a multiple select, but having one answer that covers the others sort of negates the need for the others doesn't it?



Omoba
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i agree, cos the hybrid option already includes all 3 and hybrids of any of the 3.

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dave.farmer
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Boo! Hiss!
Once again I fall foul of the marking scheme. Checking the hybrid answer as I did my answer was technically correct, but I needed to duplicate that information by checking each component as well in order to get the point.

You could respond that I should have checked all that apply (as the question, in fairness, does state), but I still consider it mean to offer a mark for exam technique rather than knowledge!
ShuaThe2nd
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Me too. The wording of that option should have been "A hybrid of TWO or more of the above". By saying one or more, the other answers are covered off, so only this option needs selecting imho.

And I want my points Wink

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Jamie-2229
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Finally!

I was beginning to think that having a good understanding of SQL Server encryption methods would never pay off.

Thanks for the great question (and for writing it so well).

Looks as though I disagree with the others here. I read "any one of the" to not be inclusive as the question did indicate check all that apply.

(Check all that apply)


Jamie
Omoba
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ShuaThe2nd (4/27/2009)
Me too. The wording of that option should have been "A hybrid of TWO or more of the above". By saying one or more, the other answers are covered off, so only this option needs selecting imho.

And I want my points Wink



that question is assigned a single point and you have got your point, just by posting the above message.

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Steve Jones
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I agree the wording was a little funny. It has been changed and points awarded back.

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RBarryYoung
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Hmm, I am not keen on the term "Hybrid" here at all. Note that nowhere in the msdn reference used to justify the answer does the word "hybrid" appear.

I guess the question is whats the difference between using both Symmetric and Asymmetric key processing and using a "Hybrid" of both? (these were two different answers offered on the question)

A hybrid of two techniques is not the same as a "combination" of two techniques. A combination implies that both techniques are used fully in conjunction, whereas a hybrid implies that the elements of one of the techniques have been partly replaced with one or more elements of the other. This is what a genetic hybrid is and where the term comes from.

Although I am not an expert in Cryptography, but I am familiar with the mathematical underpinnings and the implementation elements of both and I do not think that a hybridization of these two techniques is even mathematically possible, let alone cryptographically sound. If so, then someone should publish a paper on it because it would be seriously big news in the community.

To the best of my knowledge, Symmetric and Asymmetric techniques are only ever used in combination and are never hybridized.

-- RBarryYoung, (302)375-0451 blog: MovingSQL.com, Twitter: @RBarryYoung
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