# Why is a rainbow table called a rainbow table

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Googling, I find plenty of references to rainbow tables,
but none seem to explain WHY it's called a rainbow table.

Where's the rainbow?

https://en.wikipedia.org/wiki/Rainbow_table
https://www.ethicalhacker.net/columns/gates/tutorial-rainbow-tables-and-rainbowcrack
https://quizlet.com/98793237/chapter-2-system-forensics-investigation-and-response-flash-cards/

Re: Why is a rainbow table called a rainbow table
On Wed, 27 Jan 2016 03:31:07 +0000 (UTC), "Alice J."

I'm not sure this is correct, but it's all I could find:

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Re: Why is a rainbow table called a rainbow table
Jeff Liebermann wrote in message
i8hgablmsjqedh09sag3mvsh9g632ggf5d@4ax.com:

That said this:
"They're called rainbow tables because each column has a
different reduction function and sortof looks like a rainbow."

I found, after lots of bad hits, a few similar hints here:
https://stackoverflow.com/questions/5051608/rainbow-table
"they call it Rainbow tables because they use a different
reduction function on each column on the table"

And another hint here:
http://kestas.kuliukas.com/RainbowTables/
"Rainbow tables differ in that they don't use multiple tables
with different reduction functions, they only use one table.
However in Rainbow Tables a different reduction function is
used for each column."

Not concrete but I guess that's as good as it gets.

Re: Why is a rainbow table called a rainbow table
Alice J. wrote:

Could be, that they mean, that the difference from one row to the next
is only a little bit different like a rainbow. ;-)

Sincerely, Markus

Re: Why is a rainbow table called a rainbow table
Markus Grob wrote in message n8ajc7\$brt\$2@dont-email.me:

: These files are called rainbow tables because they
: contain every letter combination "under the rainbow".

The implication seems to be that Martin Hellman
coined the term in a paper published in 1980.

Re: Why is a rainbow table called a rainbow table

The term is from a paper by Philippe Oechslin in 2003.

--
http://www.greenend.org.uk/rjk/

Re: Why is a rainbow table called a rainbow table
Richard Kettlewell wrote in message 87d1sn13mw.fsf@mantic.terraraq.uk:

Others explain this...
http://stackoverflow.com/questions/5051608/rainbow-table

(beginning with: Because it contains the entire "spectrum"
of possibilities.)

Re: Why is a rainbow table called a rainbow table

They don?t, though.  That person is just guessing, wrongly.

The guess further down by osgx that that the different reduction
functions are notionally different colors is much more plausible.

--
http://www.greenend.org.uk/rjk/

Re: Why is a rainbow table called a rainbow table
Alice J. wrote in message n8akm0\$6g5\$4@news.albasani.net:

I forgot to put the cite where this supposedly came from

Re: Why is a rainbow table called a rainbow table

?No preview available for this page?.  But you don?t need to look at
third-party sources, the relevant papers are linked from the Wikipedia
page.

--
http://www.greenend.org.uk/rjk/

Re: Why is a rainbow table called a rainbow table
Richard Kettlewell wrote in message 877fiv10m2.fsf@mantic.terraraq.uk:

Some said the term was coined in "Making a Faster Cryptanalytic Time-Memory
Trade-Off" by Philippe Oechslin (2003) in which he describes an
improvement to Hellman's method.  He doesn't explain the term.

Re: Why is a rainbow table called a rainbow table
Alice J. wrote:

OK. This meaning seems to be possible. Beacuse of this, I use salted

Sincerely, Markus

Re: Why is a rainbow table called a rainbow table
On Wed, 27 Jan 2016 14:36:48 +0000 (UTC), "Alice J."

Maybe, but usage of the term in English language printed books started