net.dongliu.apk.parser.cert.asn1.ber

类 BerEncoding

java.lang.Object

net.dongliu.apk.parser.cert.asn1.ber.BerEncoding

public abstract class BerEncoding
extends Object

ASN.1 Basic Encoding Rules (BER) constants and helper methods. See X.690.

字段概要

字段

限定符和类型	字段和说明
static int	ID_FLAG_CONSTRUCTED_ENCODING Constructed vs primitive flag in the first identifier byte.
static int	TAG_CLASS_APPLICATION Tag class: APPLICATION
static int	TAG_CLASS_CONTEXT_SPECIFIC Tag class: CONTEXT SPECIFIC
static int	TAG_CLASS_PRIVATE Tag class: PRIVATE
static int	TAG_CLASS_UNIVERSAL Tag class: UNIVERSAL
static int	TAG_NUMBER_INTEGER Tag number: INTEGER
static int	TAG_NUMBER_NULL Tag number: NULL
static int	TAG_NUMBER_OBJECT_IDENTIFIER Tag number: OBJECT IDENTIFIER
static int	TAG_NUMBER_OCTET_STRING Tag number: OCTET STRING
static int	TAG_NUMBER_SEQUENCE Tag number: SEQUENCE
static int	TAG_NUMBER_SET Tag number: SET

方法概要

限定符和类型	方法和说明
static int	getTagClass(Asn1TagClass tagClass)
static int	getTagClass(byte firstIdentifierByte) Returns the tag class encoded in the provided first identifier byte.
static int	getTagNumber(Asn1Type dataType)
static int	getTagNumber(byte firstIdentifierByte) Returns the tag number encoded in the provided first identifier byte.
static boolean	isConstructed(byte firstIdentifierByte) Returns true if the provided first identifier byte indicates that the data value uses constructed encoding for its contents, or false if the data value uses primitive encoding for its contents.
static byte	setTagClass(byte firstIdentifierByte, int tagClass)
static byte	setTagNumber(byte firstIdentifierByte, int tagNumber)
static String	tagClassAndNumberToString(int tagClass, int tagNumber)
static String	tagClassToString(int typeClass)
static String	tagNumberToString(int tagNumber)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

ID_FLAG_CONSTRUCTED_ENCODING

public static final int ID_FLAG_CONSTRUCTED_ENCODING

Constructed vs primitive flag in the first identifier byte.

另请参阅:

常量字段值

TAG_CLASS_UNIVERSAL

public static final int TAG_CLASS_UNIVERSAL

Tag class: UNIVERSAL

另请参阅:

常量字段值

TAG_CLASS_APPLICATION

public static final int TAG_CLASS_APPLICATION

Tag class: APPLICATION

另请参阅:

常量字段值

TAG_CLASS_CONTEXT_SPECIFIC

public static final int TAG_CLASS_CONTEXT_SPECIFIC

Tag class: CONTEXT SPECIFIC

另请参阅:

常量字段值

TAG_CLASS_PRIVATE

public static final int TAG_CLASS_PRIVATE

Tag class: PRIVATE

另请参阅:

常量字段值

TAG_NUMBER_INTEGER

public static final int TAG_NUMBER_INTEGER

Tag number: INTEGER

另请参阅:

常量字段值

TAG_NUMBER_OCTET_STRING

public static final int TAG_NUMBER_OCTET_STRING

Tag number: OCTET STRING

另请参阅:

常量字段值

TAG_NUMBER_NULL

public static final int TAG_NUMBER_NULL

Tag number: NULL

另请参阅:

常量字段值

TAG_NUMBER_OBJECT_IDENTIFIER

public static final int TAG_NUMBER_OBJECT_IDENTIFIER

Tag number: OBJECT IDENTIFIER

另请参阅:

常量字段值

TAG_NUMBER_SEQUENCE

public static final int TAG_NUMBER_SEQUENCE

Tag number: SEQUENCE

另请参阅:

常量字段值

TAG_NUMBER_SET

public static final int TAG_NUMBER_SET

Tag number: SET

另请参阅:

常量字段值

方法详细资料

getTagNumber

public static int getTagNumber(Asn1Type dataType)

getTagClass

public static int getTagClass(Asn1TagClass tagClass)

tagClassToString

public static String tagClassToString(int typeClass)

tagClassAndNumberToString

public static String tagClassAndNumberToString(int tagClass,
                                               int tagNumber)

tagNumberToString

public static String tagNumberToString(int tagNumber)

isConstructed

public static boolean isConstructed(byte firstIdentifierByte)

Returns true if the provided first identifier byte indicates that the data value uses constructed encoding for its contents, or false if the data value uses primitive encoding for its contents.

getTagClass

public static int getTagClass(byte firstIdentifierByte)

Returns the tag class encoded in the provided first identifier byte. See TAG_CLASS constants.

setTagClass

public static byte setTagClass(byte firstIdentifierByte,
                               int tagClass)

getTagNumber

public static int getTagNumber(byte firstIdentifierByte)

Returns the tag number encoded in the provided first identifier byte. See TAG_NUMBER constants.

setTagNumber

public static byte setTagNumber(byte firstIdentifierByte,
                                int tagNumber)