01-20-2005
Research Project
Hi,
I need you help with my research project that attempts to determine the
link between users and manufacturers of IT Products such as Unix.
This is part of an MBA program that I'm currently pursuing. My challenge is that I cannot possibly find out how I can send my research questionnaire through to you.
Please assist.
Regards,
Thulasizwe
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LEARN ABOUT PHP
openssl_spki_export_challenge
OPENSSL_SPKI_EXPORT_CHALLENGE(3) 1 OPENSSL_SPKI_EXPORT_CHALLENGE(3)
openssl_spki_export_challenge - Exports the challenge assoicated with a signed public key and challenge
SYNOPSIS
string openssl_spki_export_challenge (string &$spkac)
DESCRIPTION
Exports challenge from encoded signed public key and challenge
PARAMETERS
o $spkac
- Expects a valid signed public key and challenge
RETURN VALUES
Returns the associated challenge string or NULL on failure.
ERRORS
/EXCEPTIONS
Emits an E_WARNING level error if an invalid argument is passed via the $spkac parameter.
EXAMPLES
Example #1
openssl_spki_export_challenge(3) example
Extracts the associated challenge string or NULL on failure.
<?php
$pkey = openssl_pkey_new('secret password');
$spkac = openssl_spki_new($pkey, 'challenge string');
$challenge = openssl_spki_export_challenge(preg_replace('/SPKAC=/', '', $spkac));
?>
Example #2
openssl_spki_export_challenge(3) example from <keygen>
Extracts the associated challenge string issued from the <keygen> element
<?php
$challenge = openssl_spki_export_challenge(preg_replace('/SPKAC=/', '', $_POST['spkac']));
?>
<keygen name="spkac" challenge="challenge string" keytype="RSA">
SEE ALSO
openssl_spki_new(3), openssl_spki_verify(3), openssl_spki_export(3), openssl_md_method(3), openssl_csr_new(3), openssl_csr_sign(3).
PHP Documentation Group OPENSSL_SPKI_EXPORT_CHALLENGE(3)