Difference between pages "MD5" and "Xpdf"

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The '''Message-Digest algorithm 5''' ('''MD5''') is a cryptographic [[hash|hash function]] that produces a 128-bit hash value. Originally developed in 1991, much as has been written about this algorithm. As such, this article concentrates only on its application to computer forensics.
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{{Infobox_Software |
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  name = Xpdf |
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  maintainer = [[Foo labs]] |
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  os = {{Cross-platform}} |
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  genre = [[PDF viewer]] |
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  license = {{GPL}} |
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  website = [http://www.foolabs.com/xpdf/ foolabs.com/xpdf/] |
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}}
  
== Tools ==
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'''xpdf''' is an [[open source]] [[PDF]] viewer package for the [[X Window System]]. It contains, among others, the [[pdfinfo]] utility which can extract metadata from PDF files.
 
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On most [[Unix]] systems the tools [[md5]] or [[md5sum]] can be used to compute the MD5 hash of a file or device. [[md5deep]] can compute MD5 hashes of whole directory trees.
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== Weaknesses ==
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Recently some cryptographic weaknesses have been found in MD5. Tool developers should avoid using MD5 in new products in favor of other hash functions like [[SHA-1]] or [[SHA-256]].  
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== External Links ==
 
== External Links ==
  
* [http://en.wikipedia.org/wiki/Md5 Wikipedia: MD5]
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* [http://en.wikipedia.org/wiki/Xpdf Wikipedia: Xpdf]
* [http://deepbyte.com/blog/2006/02/is_the_md5_hash_unreliable.html Is the MD5 hash unreliable?]
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[[Category:Hashing]]
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Revision as of 12:36, 6 May 2006

Xpdf
Maintainer: Foo labs
OS: Cross-platform
Genre: PDF viewer
License: GPL
Website: foolabs.com/xpdf/

xpdf is an open source PDF viewer package for the X Window System. It contains, among others, the pdfinfo utility which can extract metadata from PDF files.

External Links