[PEN-TEST] cryptanalysis software

[Jose Nazario <jose () BIOCSERVER BIOC CWRU EDU>]

last week's discussion on encryption in a pen test got me thinking. do any
of you know of any software that can evaluate a block of data and make a
decent guess as it if the data is potentially encrypted data, and if so
with what algorithms? when compared to purely random bits, that is.

i understand that it should be possible for some algorithms, which produce
bit frequencies that deviate noticably from random data.

i have looked in some usual places (including zedz), and either i missed
it or it doesn't exist.

thanks. basically we're evaluating a mountain of data and want to see if
some of it is encrypted or not (as opposed to random data produced by our
extraction methods).

____________________________
jose nazario                                                 jose () cwru edu
                     PGP: 89 B0 81 DA 5B FD 7E 00  99 C3 B2 CD 48 A0 07 80
                                       PGP key ID 0xFD37F4E5 (pgp.mit.edu)