On Thu, Jul 24, 2008 at 12:50 AM, Leon du Plessis <leon@xxxxxxxxxx> wrote:
> hi,
> I hope this is the right group for this type of problem:
>
> I am using hash_hmac to provide me with a sha1 encoded hash string. The
> problem is as follows:
>
> $hash = hash_hmac('sha1',
>
> '030B6A05696E657400C54601C60001550187360603773500018707060373796E63000187340603687474703A2F2F7777772E73796E632E636F6D2F73796E630001C65901873A06032E2F636F6E7461637473000187070603436F6E74616374732044420001872E0603746578742F782D7663617264000101C6570187310603757365726E616D6500018732060370617373776F72640001010101',
> '1234');
>
> Note: it is important the key to use during encoding id 1234 for this
> example.
>
> Result:
> eb38ffd597c6d1e01cd24a0e46dff426354510fe
>
> Using a hash calculator from slavasoft also yields this result, which
> indicate the encoding is fine.
> eb38ffd597c6d1e01cd24a0e46dff426354510fe
>
> However, Slavasoft's calculator has an option to provide the string as Text
> or Hex.
>
> Selecting "hex" yields this result:
> 9f9be99ea5bf5ba009af0a5c12021f420cb27652 ....and this is the string I
> need!!!
>
> So either hash_hmac function needs a way to let it know the string is of
> type hex....or the string itself needs to be converted. I have tried some
> conversions on the string but to no avail.
> Anyone have any thoughts?
gotchu covered ;)
found this on the web:
http://www.pgregg.com/projects/php/code/hexstr.phps
so then,
<?php
function hexstr($hexstr) {
$hexstr = str_replace(' ', '', $hexstr);
$retstr = pack('H*', $hexstr);
return $retstr;
}
$hash = hash_hmac('sha1', hexstr(
'030B6A05696E657400C54601C60001550187360603773500018707060373796E63000187340603687474703A2F2F7777772E73796E632E636F6D2F73796E630001C65901873A06032E2F636F6E7461637473000187070603436F6E74616374732044420001872E0603746578742F782D7663617264000101C6570187310603757365726E616D6500018732060370617373776F72640001010101'),
'1234');
echo $hash;
?>
produc
