org.eclipse.californium.scandium.dtls

Class SupportedPointFormatsExtension

java.lang.Object

org.eclipse.californium.scandium.dtls.HelloExtension

org.eclipse.californium.scandium.dtls.SupportedPointFormatsExtension

public class SupportedPointFormatsExtension
extends HelloExtension

The supported point formats extension. According RFC 8422, 5.1.1. Supported Elliptic Curves Extension only only "UNCOMPRESSED" as point format is valid, the other formats have been deprecated.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SupportedPointFormatsExtension.ECPointFormat See RFC 4492, 5.1.2.

Nested classes/interfaces inherited from class org.eclipse.californium.scandium.dtls.HelloExtension

HelloExtension.ExtensionType

Field Summary

Fields

Modifier and Type	Field and Description
static SupportedPointFormatsExtension	DEFAULT_POINT_FORMATS_EXTENSION Default ec point format extension.

Fields inherited from class org.eclipse.californium.scandium.dtls.HelloExtension

LENGTH_BITS, TYPE_BITS

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addExtensionData(org.eclipse.californium.elements.util.DatagramWriter writer) Adds binary encoding of this extension's data.
boolean	contains(SupportedPointFormatsExtension.ECPointFormat format)
static HelloExtension	fromExtensionDataReader(org.eclipse.californium.elements.util.DatagramReader extensionDataReader)
int	getLength() Gets the overall length of this extension's corresponding Extension struct.
String	toString()

Methods inherited from class org.eclipse.californium.scandium.dtls.HelloExtension

fromExtensionDataReader, toByteArray

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_POINT_FORMATS_EXTENSION

public static final SupportedPointFormatsExtension DEFAULT_POINT_FORMATS_EXTENSION

Default ec point format extension.

Since:

2.3

Method Detail

contains

public boolean contains(SupportedPointFormatsExtension.ECPointFormat format)

getLength

public int getLength()

Description copied from class: HelloExtension

Gets the overall length of this extension's corresponding Extension struct.

Note that this includes the 2 bytes indicating the extension type.

Specified by:

getLength in class HelloExtension

Returns:

the length in bytes

toString

public String toString()

Overrides:

toString in class HelloExtension

addExtensionData

protected void addExtensionData(org.eclipse.californium.elements.util.DatagramWriter writer)

Description copied from class: HelloExtension

Adds binary encoding of this extension's data.

This implementation does not do anything. Sub-classes should override this method and use the passed-in writer to add their extension_data bytes to the Extension data structure.

NB: Subclasses MUST NOT write the extension's type code to the writer as this will already have been done by the HelloExtension.toByteArray() method.

Specified by:

addExtensionData in class HelloExtension

Parameters:

writer - the writer to use for serialization

fromExtensionDataReader

public static HelloExtension fromExtensionDataReader(org.eclipse.californium.elements.util.DatagramReader extensionDataReader)