From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tom Saarnio <tom.saarnio@suomi24.fi>
Date: Wed, 23 Nov 2005 09:22:05 +0100 (MET)
Subject: [U-Boot-Users] SHA1 Hash calculation
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>> 
>> I am wondering whether it would be worth to implement a SHA1 
hash 
>> calculation over given memory address range. In this way one 
could 
>> assure for example that the binary image version is correct 
or that 
>> binary image is intact.
>
>Is the existing CRC32 checksum 
not good enough for your purposes?

The CRC32 is not collision-proof in 
similar fashion that SHA1. In real life, if two binary images give the 
same SHA1 checksum, you can say that these binaries are identical. With 
CRC32 this is not so - or at least I would not count on that :-)

br,

Tom