[CCCure CISSP] Passed the Exam _and_ ISC2 Book Crypto Question.

[Clement Dupuis]

It is a bad question as I have mentioned.

They are asking you mainly which of the following is not in the CIA.
Authenticity is NO within the CIA but is achieved through crypto.

Authenticity as mentioned can be achieve with MAC (Message Authenticaiton
Code) if you make use of Symmetric encyrption and it can be achive using
Digital Signature if you make use of public key crypto.

Take care

Clement

Clément Dupuis, CD
CISSP, GCFW, GCIA, Security+, Q/EH, Q/SA, Q/PTL, CEH, ECSA, CCSA, MBNS,
MBIS, MBHS, CCSE, ACE
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On Thu, Mar 4, 2010 at 14:28, Kenoyer, Greg <Greg.Kenoyer at hp.com> wrote:

> > Message: 1
> > Date: Thu, 4 Mar 2010 13:17:51 -0500
> > From: twitwicki at hannaford.com
> > To: cisspstudy at cccure.org
> > Subject: Re: [CCCure CISSP] CISSPstudy Digest, Vol 21, Issue 2
> > Message-ID:
> >       <
> OF701F29C4.AB316653-ON852576DC.0063E305-852576DC.0064834D at hannaford.com>
> >
> > Content-Type: text/plain; charset=US-ASCII
> >
> > All,
> >       Got the notification that I passed the exam!
> >       :
> > Tom Witwicki,  CIPP, CISM
>
> Tom, Congratulations.  May we soon join you!
>
> Q for you: I assume that you used the free CCCure exams, what score did you
> feel was adequate for you preparation?
>
> > Message: 6
> > Date: Wed, 3 Mar 2010 20:01:16 -0800 (PST)
> > From: Nimal Gunarathna <ng949 at yahoo.com>
> > To: cisspstudy at cccure.org
> > Subject: Re: [CCCure CISSP] CISSPstudy Digest, Vol 21, Issue 1
> > Message-ID: <665356.38271.qm at web33901.mail.mud.yahoo.com>
> > Content-Type: text/plain; charset="iso-8859-1"
> >
> > Thanks for your comments. I have another question for ya'll..In ISC2 book
> > crypto chapter has the following question:
> > Cryptography supports all of the core principles of information security
> except:
> > a. Availability
> > b. Confidentiality
> > c. Integrity
> > d. Authenticity
> > The book answer is d.
> > But I think this is a typo... correct answer should be a.
> >
> > Confidentiality is provided through encryption..
> > Integrity is provided
> > through hashing..
> > Authenticity is provided through digital signatures..
> > Any comments?
>
> Is this possibly a trick question?
>
> What are the core principles of InfoSec?  The CIA triad.
>
> CIA  as in Confidentiality, Integrity and Availability.
>
> NOT as in Authenticity.
>
> Greg Kenoyer
>
>
>
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