class final Core · roukmoute/pdf 0.6.2
PDF\Specification\Dictionary\SignatureFieldSeedValueDictionaryTable234\DigestMethodEntryTable 234, /DigestMethod; PDF type: array; Optional; PDF 1.7.Inheritance and contracts
Parent : PDF\Specification\SchemaEntry
Definition in the specification
Table 234 · Entries in a signature field seed value dictionary
ISO 32000-1:2008, §12.7.4.5 · PDF page 455 ↗
/DigestMethod array
(Optional; PDF 1.7) An array of names indicating acceptable digest algorithms to use while signing. The value shall be one of SHA1, SHA256, SHA384, SHA512 and RIPEMD160. The default value is implementation-specific. This property is only applicable if the digital credential signing contains RSA public/private keys. If it contains DSA public/ private keys, the digest algorithm is always SHA1 and this attribute shall be ignored.
Qualifier: Optional; PDF 1.7
Conditional descriptions remain traceable. A definition alone does not implement a codec, a signature or every format mechanism. Read the coverage.
Construction
__construct()
public function __construct(PDF\Syntax\Object\ArrayType|PDF\Syntax\Object\IndirectReference $value)Inherited methods
3 methods from parents and contracts
definition()
public function definition(): PDF\Specification\EntryDefinitionkey()
public function key(): PDF\Syntax\Object\NameTypevalue()
public function value(): PDF\Syntax\FileStructure\BasicTypeProperties
| Declaration | Origin and 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 |
Constants
| Name | PHP value | Origin |
|---|---|---|
KEY | | PDF\Specification\Dictionary\SignatureFieldSeedValueDictionaryTable234\DigestMethodEntry |
TABLE | | PDF\Specification\Dictionary\SignatureFieldSeedValueDictionaryTable234\DigestMethodEntry |
VARIABLE | | PDF\Specification\SchemaEntry |