md5 one -way hash ?

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Aug 21st, 2009
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Hi every body.


My book mentions md5 one-way hash? what is it? are there md5 two-way hash,three-way hash too?


thanks and have a good weekend

Correct Answer by Jon Marshall about 7 years 9 months ago

Sarah


MD5 is only a one-way hash. See this article for more details -


http://aspnet.4guysfromrolla.com/articles/103002-1.aspx


Jon

Correct Answer by Lucien Avramov about 7 years 9 months ago

Hi Sarah,


MD5 by design is a one way hash.


Developed in 1994, MD5 is a one-way hash algorithm that takes any length of data and produces a 128 bit "fingerprint" or "message digest". This fingerprint is "non-reversible", it is computationally infeasible to determine the file based on the fingerprint. This means someone cannot figure out your data based on its MD5 fingerprint.


Here is some websites for reading:

http://www.spitzner.net/md5.html

http://software.intel.com/sites/products/documentation/studio/composer/en-us/2009/ipp/ippcp/ippcp_ch3/ch3_Intro.html

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Correct Answer
Lucien Avramov Fri, 08/21/2009 - 07:43
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Hi Sarah,


MD5 by design is a one way hash.


Developed in 1994, MD5 is a one-way hash algorithm that takes any length of data and produces a 128 bit "fingerprint" or "message digest". This fingerprint is "non-reversible", it is computationally infeasible to determine the file based on the fingerprint. This means someone cannot figure out your data based on its MD5 fingerprint.


Here is some websites for reading:

http://www.spitzner.net/md5.html

http://software.intel.com/sites/products/documentation/studio/composer/en-us/2009/ipp/ippcp/ippcp_ch3/ch3_Intro.html

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