wok rev 24171

updated outguess (0.2 -> 0.4)
author Hans-G?nter Theisgen
date Wed Dec 29 09:07:10 2021 +0100 (11 months ago)
parents fe66b54207f7
children fd3a440c0829
files outguess/description.txt outguess/receipt
line diff
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/outguess/description.txt	Wed Dec 29 09:07:10 2021 +0100
     1.3 @@ -0,0 +1,42 @@
     1.4 +Outguess is a universal steganographic tool that allows
     1.5 +the insertion of hidden information into the redundant
     1.6 +bits of data sources.
     1.7 +The nature of the data source is irrelevant to the core
     1.8 +of outguess. The program relies on data specific handlers
     1.9 +that will extract redundant bits and write them back
    1.10 +after modification.
    1.11 +Currently only the PPM (Portable Pixel Map), PNM
    1.12 +(Portable Any Map), and JPEG image formats are supported,
    1.13 +although outguess could use any kind of data, as long as
    1.14 +a handler were provided.
    1.15 +
    1.16 +Steganography is the art and science of hiding that
    1.17 +communication is happening.
    1.18 +Classical steganography systems depend on keeping the
    1.19 +encoding system secret, but modern steganography are
    1.20 +detectable only if secret information is known, e.g. a
    1.21 +secret key.
    1.22 +Because of their invasive nature steganography systems
    1.23 +leave detectable traces within a medium's characteristics.
    1.24 +This allows an eavesdropper to detect media that has been
    1.25 +modified, revealing that secret communication is taking
    1.26 +place. Although the secrecy of the information is not
    1.27 +degraded, its hidden nature is revealed, defeating the
    1.28 +main purpose of Steganography.
    1.29 +
    1.30 +For JPEG images, OutGuess preserves statistics based on
    1.31 +frequency counts.
    1.32 +As a result, no known statistical test is able to detect
    1.33 +the presence of steganographic content.
    1.34 +Before embedding data into an image, the OutGuess system
    1.35 +can determine the maximum message size that can be hidden
    1.36 +while still being able to maintain statistics based on
    1.37 +frequency counts.
    1.38 +
    1.39 +OutGuess uses a generic iterator object to select which
    1.40 +bits in the data should be modified.
    1.41 +A seed can be used to modify the behavior of the iterator.
    1.42 +It is embedded in the data along with the rest of the
    1.43 +message. By altering the seed, OutGuess tries to find a
    1.44 +sequence of bits that minimizes the number of changes in
    1.45 +the data that have to be made.
     2.1 --- a/outguess/receipt	Wed Dec 29 07:55:54 2021 +0100
     2.2 +++ b/outguess/receipt	Wed Dec 29 09:07:10 2021 +0100
     2.3 @@ -1,27 +1,33 @@
     2.4  # SliTaz package receipt.
     2.5  
     2.6  PACKAGE="outguess"
     2.7 -VERSION="0.2"
     2.8 +VERSION="0.4"
     2.9  CATEGORY="security"
    2.10 -SHORT_DESC="steganographic tool for JPEG and PNG images."
    2.11 +TAGS="steganography"
    2.12 +SHORT_DESC="Steganographic tool for JPEG and PNG images."
    2.13  MAINTAINER="pascal.bellard@slitaz.org"
    2.14  LICENSE="BSD"
    2.15 +WEB_SITE="https://github.com/resurrecting-open-source-projects/outguess"
    2.16 +
    2.17  TARBALL="$PACKAGE-$VERSION.tar.gz"
    2.18 -WEB_SITE="https://www.rbcafe.com/software/outguess/"
    2.19 -WGET_URL="$WEB_SITE/$TARBALL"
    2.20 -TAGS="stenography"
    2.21 +WGET_URL="$WEB_SITE/archive/refs/tags/$VERSION.tar.gz"
    2.22 +
    2.23 +BUILD_DEPENDS="automake jpeg-dev"
    2.24  
    2.25  # Rules to configure and make the package.
    2.26  compile_rules()
    2.27  {
    2.28 -	./configure --prefix=/usr \
    2.29 +	./autogen.sh &&
    2.30 +	./configure			\
    2.31 +		--prefix=/usr		\
    2.32 +		--with-generic-jconfig	\
    2.33  		$CONFIGURE_ARGS &&
    2.34 -	make
    2.35 +	make &&
    2.36 +	make install
    2.37  }
    2.38  
    2.39  # Rules to gen a SliTaz package suitable for Tazpkg.
    2.40  genpkg_rules()
    2.41  {
    2.42 -	mkdir -p $fs/usr/bin
    2.43 -	cp -a $src/outguess $fs/usr/bin
    2.44 +	cook_copy_folders	bin
    2.45  }