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 [Guide]File Integrity Checker

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TSwaifaq
post Aug 13 2004, 04:22 PM, updated 22y ago

Null
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Elite
3,347 posts

Joined: Jan 2003
From: Malaysia, Selangor, Sg. Buloh.

Keywords "file integrity checker" , "Verify data integrity" , "md5" , "md5sum" , "Verify written data"

What is MD5 ?
MD5 readme

Get yrself a copy fsum
D/D fsum v2.51

Extract the fsum into any directory.

First create a folder. C:\Temp
Then copy all the files that going to burn in CD-R/RW. Remember copy the fsum.exe into C:\Temp
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Start > Run > cmd > ok
Then type cd\temp
Then type fsum -r *.* >sum.txt
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Notice the sum.txt
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You might want to vertifies b4 burning into CD-R/RW.
Then type fsum -c sum.txt
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You can start burning into CD-R/RW
Remember to include the fsum.exe & sum.txt

Just finish burning.
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This is to verifies the files burn into CD-R/RW are match the md5 result.
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This is very useful when you want to distributes/mirrors files over Internet.
QUOTE
MD5 digests are widely used in the free software world to provide assurance that a downloaded file has not been altered. By verifying a published MD5 sum's PGP signature, and then comparing a publicized MD5 sum with the checksum of a downloaded file, a user can have considerable confidence that the file is the same as that released by the developers. This protects against Trojan horses and computer viruses being added to the software surreptitiously. Checking a downloaded file against its MD5 sum does not only detect files purposefully altered in a malicious manner; it will also recognize a corrupt or incomplete download.


fsum capability.
Possibility to calculate a file message digest and/or a checksum using any of the 12 well-known and documented hash and checksum algorithms: MD2, MD4, MD5, SHA-1, SHA-2( 256, 384, 512), RIPEMD-160, PANAMA, TIGER, ADLER32, CRC32

to use above function, please read the ReadMe.txt come with the fsum.zip.

Rev 1.0
fariz
post Aug 13 2004, 05:29 PM

Tan Sri F
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16,825 posts

Joined: Jan 2003
From: Siberia
Good guide..

I just wanna add another app for checking file integrity, digestIT 2004, the software that provides the simple "right-click and hash".

user posted image Right-click on a file...

and verify a message digest, or...user posted image

user posted image compute a message digest.

 

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