The Design of Software (CLOSED)

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Digest algorithm

what are digest algorithms?especially,what digest means in this context?
raja
Friday, May 18, 2007
 
 
Just coincidentally, I ran across this today:
http://www.jasypt.org/howtoencryptuserpasswords.html
Mark Ransom Send private email
Friday, May 18, 2007
 
 
You want to spend some time reading these two books:
http://www.schneier.com/book-applied.html
http://www.schneier.com/book-practical.html
If you can't afford the time to read them, you shouldn't be working in software (in)security.
Peter Send private email
Friday, May 18, 2007
 
 
bmm6o Send private email
Friday, May 18, 2007
 
 
Very simple: one-way functions. A leads to B, but it's impossible to derive A from B.

For example, A = 13, and the digest algorithm is % 5. B would then be 3, but it's impossible to find out whether A was 3, 8, 13, 18, etc, only from entering B and knowing the digest function.

(Note that this is a very very VERY basic example).
Leon Mergen Send private email
Sunday, May 20, 2007
 
 
They are one-way hash functions.  Good digest algorithms result in very few if any collisions.
Mark Van Ditta
Tuesday, May 22, 2007
 
 

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