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April 27th, 2009, 11:36 AM
#1
Hashing related question's
There is this question that is really bugging me.. It's on a test sim for CISSP..
Here is the question as it is:
What hashing algorithm is implimented by IPSec
Options:
MD5
SHA-1
HAVAL
HMAC..
The answer is HMAC !
HMAC isn't an algorithm ! its a type of MAC
Shouldn't SHA-1 be the answer ?
Parth Maniar,
CISSP, CISM, CISA, SSCP
*Thank you GOD*
Greater the Difficulty, SWEETER the Victory.
Believe in yourself.
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April 28th, 2009, 03:09 AM
#2
A Hash Message Authentication Code, is a type of message authentication "code" calculated using a specific algorithm that uses a cryptographic hash function in combination with a secret key. It verifies both the data integrity and the authenticity. Any iterative cryptographic hash function, such as MD5 or SHA-1, may be used to calc an HMAC. the resulting MAC is termed HMAC-MD5 or HMAC-SHA1 accordingly.
I surmise they are differentiating between the algo and various hash functions.
In God We Trust....Everything else we backup.
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April 28th, 2009, 08:23 PM
#3
Thanks mate..
Parth Maniar,
CISSP, CISM, CISA, SSCP
*Thank you GOD*
Greater the Difficulty, SWEETER the Victory.
Believe in yourself.
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