Databases
StackOverflow2013
Postsdbo
POIssues with computing shared secret of Diffie Hellman key for OpenID
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POIssues with computing shared secret of Diffie Hellman key for OpenID
    primarykey
    data
    text
    <p>I'm attempting to create a stateful library for OpenID to be used as a Wordpress plugin, I'm running into a issue when I attempt to compute the secret value using the openssl function <a href="http://php.net/manual/en/function.openssl-dh-compute-key.php" rel="nofollow noreferrer">openssl_dh_compute_key</a>. Curious if anyone has some steps I could try, hints, etc...</p> <p>Thanks!</p> <p>The constants...</p> <pre><code>const DH_DEFAULT_PRIME = "dcf93a0b883972ec0e19989ac5a2ce310e1d37717e8d9571bb7623731866e61ef75a2e27898b057f9891c2e27a639c3f29b60814581cd3b2ca3986d2683705577d45c2e7e52dc81c7a171876e5cea74b1448bfdfaf18828efd2519f14e45e3826634af1949e5b535cc829a483b8a76223e5d490a257f05bdff16f2fb22c583ab"; const DH_DEFAULT_GENERATOR = '02'; </code></pre> <p>Creating my Diffie-Hellman key</p> <pre><code>private function createDHKey($priv_key = false) { if (!$priv_key) { $details = array(); $details['p'] = pack('H*', self::DH_DEFAULT_PRIME); $details['g'] = pack('H*', self::DH_DEFAULT_GENERATOR); $this-&gt;dh = openssl_pkey_new(array( 'dh' =&gt; $details, )); if ($this-&gt;dh) { return true; } else { error('OpenSSL failed to export your private key, ensure you have a valid configuration file, and PHP can find it.'); } } else { $this-&gt;dh = openssl_pkey_get_private($priv_key); return false; } } </code></pre> <p><img src="https://i.imgur.com/bCasc.png" alt="First run of function"></p> <p><img src="https://i.imgur.com/p1VG4.png" alt="Recalling exported private key"></p> <p>The Ag== at the button of both images is the base64 encoded value of dh['g'].</p> <p>I then save the generated private key into a database to persist, which allows me to later re-create the key via the openssl_pkey_get_private function.</p> <p>However, taking the returned openid.dh_server_public from the association request, and passing it, and my key re-created from the private key results in a false for </p> <pre><code>var_dump(openssl_dh_compute_key($this-&gt;op_pubkey, $this-&gt;dh)); </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USJamie
    1. USJamie
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POIssues with computing shared secret of Diffie Hellman key for OpenID
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POIssues with computing shared secret of Diffie Hellman key for OpenID
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. POIssues with computing shared secret of Diffie Hellman key for OpenID
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload