Fonctions membres publiques statiques
static	create ($class, $isConstructed, $tagNumber)

static	isConstructed ($identifierOctet)

static	isLongForm ($identifierOctet)

static	getName ($identifier)

static	getShortName ($identifier)

static	getClassDescription ($identifier)

static	getTagNumber ($identifier)

static	isUniversalClass ($identifier)

static	isApplicationClass ($identifier)

static	isContextSpecificClass ($identifier)

static	isPrivateClass ($identifier)

Champs de données
const	CLASS_UNIVERSAL = 0x00

const	CLASS_APPLICATION = 0x01

const	CLASS_CONTEXT_SPECIFIC = 0x02

const	CLASS_PRIVATE = 0x03

const	EOC = 0x00

const	BOOLEAN = 0x01

const	INTEGER = 0x02

const	BITSTRING = 0x03

const	OCTETSTRING = 0x04

const	NULL = 0x05

const	OBJECT_IDENTIFIER = 0x06

const	OBJECT_DESCRIPTOR = 0x07

const	EXTERNAL = 0x08

const	REAL = 0x09

const	ENUMERATED = 0x0A

const	EMBEDDED_PDV = 0x0B

const	UTF8_STRING = 0x0C

const	RELATIVE_OID = 0x0D

const	SEQUENCE = 0x30

const	SET = 0x31

const	NUMERIC_STRING = 0x12

const	PRINTABLE_STRING = 0x13

const	T61_STRING = 0x14

const	VIDEOTEXT_STRING = 0x15

const	IA5_STRING = 0x16

const	UTC_TIME = 0x17

const	GENERALIZED_TIME = 0x18

const	GRAPHIC_STRING = 0x19

const	VISIBLE_STRING = 0x1A

const	GENERAL_STRING = 0x1B

const	UNIVERSAL_STRING = 0x1C

const	CHARACTER_STRING = 0x1D

const	BMP_STRING = 0x1E

const	LONG_FORM = 0x1F

const	IS_CONSTRUCTED = 0x20

Fonctions membres privées statiques
static	makeNumeric ($identifierOctet)

Description détaillée

The Identifier encodes the ASN.1 tag (class and number) of the type of a data value.

Every identifier whose number is in the range 0 to 30 has the following structure:

Bits: 8 7 6 5 4 3 2 1 | Class | P/C | Tag number | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Bits 8 and 7 define the class of this type ( Universal, Application, Context-specific or Private). Bit 6 encoded whether this type is primitive or constructed The remaining bits 5 - 1 encode the tag number

Documentation des fonctions membres

◆ create()

static create	(	$class,
		$isConstructed,
		$tagNumber
	)

static

Creates an identifier. Short form identifiers are returned as integers for BC, long form identifiers will be returned as a string of octets.

Paramètres

int	$class
bool	$isConstructed
int	$tagNumber

Exceptions

Exception if the given arguments are invalid

Renvoie: int|string

Références $class.

Référencé par ExplicitlyTaggedObject\getIdentifier().

◆ getClassDescription()

static getClassDescription ( $identifier )

static

Returns a textual description of the information encoded in a given identifier octet.

The first three (most significant) bytes are evaluated to determine if this is a constructed or primitive type and if it is either universal, application, context-specific or private.

Example: Constructed context-specific Primitive universal

Paramètres

int | string $identifier

Renvoie: string

◆ getName()

static getName ( $identifier )

static

Return the name of the mapped ASN.1 type with a preceding "ASN.1 ".

Example: ASN.1 Octet String

Voir également: Identifier::getShortName()

Paramètres

int | string $identifier

Renvoie: string

Référencé par AbstractTime\__construct(), AbstractString\checkString(), ASNObject\getTypeName(), et ASNObject\parseIdentifier().

◆ getShortName()

static getShortName ( $identifier )

static

Return the short version of the type name.

If the given identifier octet can be mapped to a known universal type this will return its name. Else Identifier::getClassDescription() is used to retrieve information about the identifier.