net.messagevortex.asn1.encryption

Enum Padding

java.lang.Object

java.lang.Enum<Padding>

net.messagevortex.asn1.encryption.Padding

All Implemented Interfaces:

Serializable, Comparable<Padding>

public enum Padding
extends Enum<Padding>
implements Serializable

Enumeration listing all available padding types for encryption.

Enum Constant Summary

Enum Constants

Enum Constant and Description
NONE
OAEP_SHA256_MGF1
OAEP_SHA384_MGF1
OAEP_SHA512_MGF1
PKCS1
PKCS7

Field Summary

Fields

Modifier and Type	Field and Description
static long	serialVersionUID

Method Summary

Modifier and Type	Method and Description
static Padding[]	getAlgorithms(AlgorithmType at) Get applicable padding sets for a given Algorithm type.
static Padding	getById(int id) Get a padding by its ASN.1 ID.
static Padding	getByString(String name) Get a padding by its name.
static Padding	getDefault(AlgorithmType at) Get the default padding for a given AlgorithmType.
int	getId() Get the numeric ASN.1 id of the padding.
int	getMaxSize(int blockSize) Gets the maximum payload size.
org.bouncycastle.asn1.ASN1Enumerated	toAsn1() Get the corresponding ASN1 enumeration.
String	toString() Get the textual representation of the padding for the cryptographic provider.
static Padding	valueOf(String name) Returns the enum constant of this type with the specified name.
static Padding[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NONE

public static final Padding NONE

PKCS1

public static final Padding PKCS1

OAEP_SHA256_MGF1

public static final Padding OAEP_SHA256_MGF1

OAEP_SHA384_MGF1

public static final Padding OAEP_SHA384_MGF1

OAEP_SHA512_MGF1

public static final Padding OAEP_SHA512_MGF1

PKCS7

public static final Padding PKCS7

Field Detail

serialVersionUID

public static final long serialVersionUID

See Also:

Constant Field Values

Method Detail

values

public static Padding[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Padding c : Padding.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Padding valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getAlgorithms

public static Padding[] getAlgorithms(AlgorithmType at)

Get applicable padding sets for a given Algorithm type.

Parameters:

at - the type of algorithm

Returns:

an array of supported paddings

getById

public static Padding getById(int id)

Get a padding by its ASN.1 ID.

Parameters:

id - the ASN.1 numericcal ID

Returns:

the padding or null if ID is unknown

getByString

public static Padding getByString(String name)

Get a padding by its name.

Parameters:

name - the name used by the cryptographic provider

Returns:

the padding or null if name is unknown

getDefault

public static Padding getDefault(AlgorithmType at)

Get the default padding for a given AlgorithmType.

Parameters:

at - the algorithm type

Returns:

the default padding for the given algorithm type

getId

public int getId()

Get the numeric ASN.1 id of the padding.

Returns:

the id of the padding

toString

public String toString()

Get the textual representation of the padding for the cryptographic provider.

Overrides:

toString in class Enum<Padding>

Returns:

the name used within the cryptographic provider

getMaxSize

public int getMaxSize(int blockSize)

Gets the maximum payload size.

The payload size is calculated by <block size>-<padding overhead>.

Parameters:

blockSize - the block size of the cryptographic algorithm (usually equals the key size)

Returns:

the number of bytes a single block may hold including the padding information.

toAsn1

public org.bouncycastle.asn1.ASN1Enumerated toAsn1()

Get the corresponding ASN1 enumeration.

Returns:

the ASN1 enumeration representing this padding