class final Core · roukmoute/pdf 0.6.1
PDF\Specification\Adobe\Dictionary\CryptFilterDictionaryTable3_22\LengthEntryAdobe table 3.22, /Length; PDF type: integer; Required if the value for the V key in Table 3.18 is 2 or 3, optional otherwise.Héritage et contrats
Parent : PDF\Specification\SchemaEntry
Définition dans le supplément Adobe
Tableau 3.22 · Entries common to all crypt filter dictionaries
PDF 1.7 · Adobe ExtensionLevel 3 · §3.5.4 · page PDF 22 ↗
/Length integer
(Required if the value for the V key in Table 3.18 is 2 or 3, optional otherwise) The bit length of the encryption key. It must be a multiple of 8 in the range of 40 to 128 256. Note: Security handlers can define their own use of the Length entry but are encouraged to use it to define the bit length of the encryption key.
Qualificateur : Required if the value for the V key in Table 3.18 is 2 or 3, optional otherwise
Chaque entrée conserve sa source ISO ou Adobe. Les règles et traitements associés figurent dans la couverture du supplément.
Construction
__construct()
public function __construct(PDF\Syntax\Object\IntegerType|PDF\Syntax\Object\IndirectReference $value)Méthodes héritées
3 méthodes des parents et contrats
definition()
public function definition(): PDF\Specification\EntryDefinitionkey()
public function key(): PDF\Syntax\Object\NameTypevalue()
public function value(): PDF\Syntax\FileStructure\BasicTypePropriétés
| Déclaration | Provenance et documentation |
|---|---|
public readonly PDF\Syntax\Object\NameType $key | PDF\Syntax\Object\DictionaryObject\Entry |
public readonly PDF\Syntax\FileStructure\BasicType $value | PDF\Syntax\Object\DictionaryObject\Entry |
Constantes
| Nom | Valeur PHP | Provenance |
|---|---|---|
KEY | | PDF\Specification\Adobe\Dictionary\CryptFilterDictionaryTable3_22\LengthEntry |
TABLE | | PDF\Specification\Adobe\Dictionary\CryptFilterDictionaryTable3_22\LengthEntry |
VARIABLE | | PDF\Specification\SchemaEntry |