<div>
hai there,<br />
<br />
personally i don't have much depth knowledge over verification on CRC's however i found a site which i think it would helpful to you<br />
<br />
<a href="http://codeguru.earthweb.com/cpp/w-p/files/shellapifunctions/article.php/c13027/" rel="ugc">http://codeguru.earthweb.com/cpp/w-p/files/shellapifunctions/article.php/c13027/</a><br />
(check - verifying CRC/checksum)<br />
<br />
hope this helps
</div>


hai there,

personally i don't have much depth knowledge over verification on CRC's however i found a site which i think it would helpful to you

http://codeguru.earthweb.com/cpp/w-p/files/shellapifunctions/article.php/c13027/ [http://codeguru.earthweb.com/cpp/w-p/files/shellapifunctions/article.php/c13027/]
(check - verifying CRC/checksum)

hope this helps

<div>
WinVerifyTrust()<br />
EX:<br />
<a href="http://msdn.microsoft.com/en-us/library/aa382384(VS.85).aspx" rel="ugc">http://msdn.microsoft.com/en-us/library/aa382384(VS.85).aspx</a>
</div>


WinVerifyTrust()
EX:
http://msdn.microsoft.com/en-us/library/aa382384(VS.85).aspx [http://msdn.microsoft.com/en-us/library/aa382384(VS.85).aspx]

<div>
<div class="content wysiwyg-content">
Hi,<br />
<br />
is it possible to check whether a digital sign is valid? After Signing a file, it has a checksum. After a file is changed the checksum is not valid anymore and windows said that the sign is broken. How to get this information by a code?<br />
<br />
Ocrana
</div>
</div>


Hi,

is it possible to check whether a digital sign is valid? After Signing a file, it has a checksum. After a file is changed the checksum is not valid anymore and windows said that the sign is broken. How to get this information by a code?

Ocrana

Validate whether a codesigning is valid

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C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.

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