__construct() public méthode

public __construct ( HiddenString $keyMaterial )
$keyMaterial ParagonIE\Halite\HiddenString - The actual key data
 /**
  * @param HiddenString $keyMaterial - The actual key data
  * @throws InvalidKey
  */
 public function __construct(HiddenString $keyMaterial)
 {
     if (CryptoUtil::safeStrlen($keyMaterial->getString()) !== \Sodium\CRYPTO_BOX_SECRETKEYBYTES) {
         throw new InvalidKey('Encryption secret key must be CRYPTO_BOX_SECRETKEYBYTES bytes long');
     }
     parent::__construct($keyMaterial);
 }
 /**
  * @param string $keyMaterial - The actual key data
  * @param bool $signing - Is this a signing key?
  */
 public function __construct(string $keyMaterial = '', ...$args)
 {
     if (CryptoUtil::safeStrlen($keyMaterial) !== \Sodium\CRYPTO_SIGN_SECRETKEYBYTES) {
         throw new InvalidKey('Signature secret key must be CRYPTO_SIGN_SECRETKEYBYTES bytes long');
     }
     parent::__construct($keyMaterial, true);
 }
 /**
  * @param HiddenString $keyMaterial - The actual key data
  * @throws InvalidKey
  */
 public function __construct(HiddenString $keyMaterial)
 {
     if (CryptoUtil::safeStrlen($keyMaterial->getString()) !== \Sodium\CRYPTO_SIGN_SECRETKEYBYTES) {
         throw new InvalidKey('Signature secret key must be CRYPTO_SIGN_SECRETKEYBYTES bytes long');
     }
     parent::__construct($keyMaterial);
     $this->isSigningKey = true;
 }