Auth_OpenID_DiffieHellmanSHA1ServerSession Class Reference

Inheritance diagram for Auth_OpenID_DiffieHellmanSHA1ServerSession:

Collaboration diagram for Auth_OpenID_DiffieHellmanSHA1ServerSession:

Public Member Functions
	Auth_OpenID_DiffieHellmanSHA1ServerSession ($dh, $consumer_pubkey)
	answer ($secret)

Static Public Member Functions
static	getDH ($message)
static	fromMessage ($message)

Data Fields
	$session_type = 'DH-SHA1'
	An object that knows how to handle association requests with the Diffie-Hellman session type.
	$needs_math = true
	$allowed_assoc_types = array('HMAC-SHA1')
	$hash_func = 'Auth_OpenID_SHA1'

Detailed Description

Definition at line 455 of file Server.php.

Member Function Documentation

Auth_OpenID_DiffieHellmanSHA1ServerSession::answer

(

$secret

)

Definition at line 539 of file Server.php.

References Auth_OpenID_getMathLib().

    {
        $lib = Auth_OpenID_getMathLib();
        $mac_key = $this->dh->xorSecret($this->consumer_pubkey, $secret,
                                        $this->hash_func);
        return array(
           'dh_server_public' =>
                $lib->longToBase64($this->dh->public),
           'enc_mac_key' => base64_encode($mac_key));
    }

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Auth_OpenID_DiffieHellmanSHA1ServerSession::Auth_OpenID_DiffieHellmanSHA1ServerSession	(		$dh,
			$consumer_pubkey
	)

Definition at line 466 of file Server.php.

Referenced by fromMessage().

    {
        $this->dh = $dh;
        $this->consumer_pubkey = $consumer_pubkey;
    }

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static Auth_OpenID_DiffieHellmanSHA1ServerSession::fromMessage (   $message )

static

Reimplemented in Auth_OpenID_DiffieHellmanSHA256ServerSession.

Definition at line 526 of file Server.php.

References $result, Auth_OpenID_DiffieHellmanSHA1ServerSession(), and getDH().

    {
        $result = Auth_OpenID_DiffieHellmanSHA1ServerSession::getDH($message);

        if (is_a($result, 'Auth_OpenID_ServerError')) {
            return $result;
        } else {
            list($dh, $consumer_pubkey) = $result;
            return new Auth_OpenID_DiffieHellmanSHA1ServerSession($dh,
                                                    $consumer_pubkey);
        }
    }

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static Auth_OpenID_DiffieHellmanSHA1ServerSession::getDH (   $message )

static

Definition at line 472 of file Server.php.

References Auth_OpenID_getMathLib(), and Auth_OpenID_OPENID_NS.

Referenced by fromMessage(), and Auth_OpenID_DiffieHellmanSHA256ServerSession\fromMessage().

    {
        $dh_modulus = $message->getArg(Auth_OpenID_OPENID_NS, 'dh_modulus');
        $dh_gen = $message->getArg(Auth_OpenID_OPENID_NS, 'dh_gen');

        if ((($dh_modulus === null) && ($dh_gen !== null)) ||
            (($dh_gen === null) && ($dh_modulus !== null))) {

            if ($dh_modulus === null) {
                $missing = 'modulus';
            } else {
                $missing = 'generator';
            }

            return new Auth_OpenID_ServerError($message,
                                'If non-default modulus or generator is '.
                                'supplied, both must be supplied.  Missing '.
                                $missing);
        }

        $lib = Auth_OpenID_getMathLib();

        if ($dh_modulus || $dh_gen) {
            $dh_modulus = $lib->base64ToLong($dh_modulus);
            $dh_gen = $lib->base64ToLong($dh_gen);
            if ($lib->cmp($dh_modulus, 0) == 0 ||
                $lib->cmp($dh_gen, 0) == 0) {
                return new Auth_OpenID_ServerError(
                  $message, "Failed to parse dh_mod or dh_gen");
            }
            $dh = new Auth_OpenID_DiffieHellman($dh_modulus, $dh_gen);
        } else {
            $dh = new Auth_OpenID_DiffieHellman();
        }

        $consumer_pubkey = $message->getArg(Auth_OpenID_OPENID_NS,
                                            'dh_consumer_public');
        if ($consumer_pubkey === null) {
            return new Auth_OpenID_ServerError($message,
                                  'Public key for DH-SHA1 session '.
                                  'not found in query');
        }

        $consumer_pubkey =
            $lib->base64ToLong($consumer_pubkey);

        if ($consumer_pubkey === false) {
            return new Auth_OpenID_ServerError($message,
                                       "dh_consumer_public is not base64");
        }

        return array($dh, $consumer_pubkey);
    }

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Field Documentation

Auth_OpenID_DiffieHellmanSHA1ServerSession::$allowed_assoc_types = array('HMAC-SHA1')

Definition at line 463 of file Server.php.

Auth_OpenID_DiffieHellmanSHA1ServerSession::$hash_func = 'Auth_OpenID_SHA1'

Definition at line 464 of file Server.php.

Auth_OpenID_DiffieHellmanSHA1ServerSession::$needs_math = true

Definition at line 462 of file Server.php.

Auth_OpenID_DiffieHellmanSHA1ServerSession::$session_type = 'DH-SHA1'

An object that knows how to handle association requests with the Diffie-Hellman session type.

Definition at line 461 of file Server.php.

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The documentation for this class was generated from the following file:

• Services/OpenId/lib/Auth/OpenID/Server.php