File checksum

[Jesper.]

Hi,

Once I heard something about a files checksum. Is there a
smart way to verify to some degree that the content of a
file has not been changed in C#.

best regards Jesper.

 

[Dmitriy Lapshin [C# / .NET MVP]]

Hi,

You can compute a hash value (MD5 or SHA) on a file content, store it
somewhere and then re-compute the hash and compare to the stored value. If
they are not equal, the file has changed. .NET Framework has a built-in
implementation for hash computation in the System.Security.Cryptography
namespace.

 

[Jochen Kalmbach]

Once I heard something about a files checksum. Is there a
smart way to verify to some degree that the content of a
file has not been changed in C#.

The recommended way is to use a CVS-System like (CVS, PVCS, SourceSafe,
ClearCase, ...)

--
Greetings
Jochen

Do you need a memory-leak finder ?
http://www.codeproject.com/tools/leakfinder.asp

 

[csharpguru]

Hash the file content.

To check for file modification:
Rehash the file content and compare to the above