public function XMLSecurityKey::loadKey in SAML SP 2.0 Single Sign On (SSO) - SAML Service Provider 7

Loads the given key, or - with isFile set true - the key from the keyfile.

Parameters

string $key:

bool $isFile:

bool $isCert:

Throws

Exception

File

includes/XMLSecurityKey.php, line 355

Class

XMLSecurityKey

Code

public function loadKey($key, $isFile = false, $isCert = false) {
  if ($isFile) {
    $this->key = file_get_contents($key);
  }
  else {
    $this->key = $key;
  }
  if ($isCert) {
    $this->key = openssl_x509_read($this->key);
    openssl_x509_export($this->key, $str_cert);
    $this->x509Certificate = $str_cert;
    $this->key = $str_cert;
  }
  else {
    $this->x509Certificate = null;
  }
  if ($this->cryptParams['library'] == 'openssl') {
    if ($this->cryptParams['type'] == 'public') {
      if ($isCert) {

        /* Load the thumbprint if this is an X509 certificate. */
        $this->X509Thumbprint = self::getRawThumbprint($this->key);
      }
      $this->key = openssl_get_publickey($this->key);
      if (!$this->key) {
        throw new Exception('Unable to extract public key');
      }
    }
    else {
      $this->key = openssl_get_privatekey($this->key, $this->passphrase);
    }
  }
  else {
    if ($this->cryptParams['cipher'] == MCRYPT_RIJNDAEL_128) {

      /* Check key length */
      switch ($this->type) {
        case self::AES256_CBC:
          if (strlen($this->key) < 25) {
            throw new Exception('Key must contain at least 25 characters for this cipher');
          }
          break;
        case self::AES192_CBC:
          if (strlen($this->key) < 17) {
            throw new Exception('Key must contain at least 17 characters for this cipher');
          }
          break;
      }
    }
  }
}