class final Core · roukmoute/pdf 0.6.2
PDF\Specification\Adobe\Dictionary\AdditionalEncryptionDictionaryEntriesForTheStandardSecurityHandlerTable3_19\OEntryAdobe table 3.19, /O; PDF type: string; Required.Héritage et contrats
Parent : PDF\Specification\SchemaEntry
Définition dans le supplément Adobe
Tableau 3.19 · Additional encryption dictionary entries for the standard security handler
PDF 1.7 · Adobe ExtensionLevel 3 · §3.5.2 · page PDF 17 ↗
/O string
(Required) A string used in computing the encryption key. The value of the string depends on the value of the revision number, the R entry described above. The value of R is 4 or less: A 32-byte string, based on both the owner and user passwords, that is used in computing the encryption key and in determining whether a valid owner password was entered. The value for R is 5: (ExtensionLevel 3) A 48-byte string, based on the owner and user passwords, that is used in computing the encryption key and in determining whether a valid owner password was entered. For more information, see “Encryption Key Algorithm” on page 124 and “Password Algorithms” on page 126.
Qualificateur : Required
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\StringType|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 |