Changes

== MD5 ==

== MD5 ==

MD5 became a computing standard <ref>http://tools.ietf.org/html/rfc1321</ref> for hashing but was subsequently found to be insecure<ref>http://merlot.usc.edu/csac-f06/papers/Wang05a.pdf</ref> and was replaced with SHA1. MD5 breaks the input up into 512-bit blocks and churns it down into a 128-bit bit hash. For example, the text "The quick brown fox jumps over the lazy dog" would become (base64 encoded):

MD5 became a computing standard <ref>http://tools.ietf.org/html/rfc1321</ref> for hashing but was subsequently found to be insecure<ref>http://merlot.usc.edu/csac-f06/papers/Wang05a.pdf</ref> and was replaced with SHA1. MD5 breaks the input up into 512-bit blocks and churns it down into a 128-bit bit hash. For example, the text "The quick brown fox jumps over the lazy dog" would become (base64 encoded):

<code><pre>

<code>50842ef1bd9a95a284b395a0f0e0e2f8</code>

50842ef1bd9a95a284b395a0f0e0e2f8

</pre></code>

== SHA1 ==

== SHA1 ==

SHA (Secure Hash Algorithm) is a set of functions for hashing which fixed the problems found in MD5 and has since become the industry standard. SHA1 hashes down to a 160-bit hash. For example, the text "The quick brown fox jumps over the lazy dog" would become (base64 encoded):

SHA (Secure Hash Algorithm) is a set of functions for hashing which fixed the problems found in MD5 and has since become the industry standard. SHA1 hashes down to a 160-bit hash. For example, the text "The quick brown fox jumps over the lazy dog" would become (base64 encoded):

<code><pre>

<code>

1305dca26f7ef6e660c5c54948c1050cc3253b18

1305dca26f7ef6e660c5c54948c1050cc3253b18

</pre></code>

</code>

[[Category:Computers]]

[[Category:Computers]]