Class ChipAuthenticationPublicKeyInfo

This class encodes and decodes ChipAuthenticationPublicKeyInfo objects.

The class implements the following ASN.1 syntax:

	ChipAuthenticationPublicKeyInfo ::= SEQUENCE {
		protocol OBJECT IDENTIFIER(id-PK-DH | id-PK-ECDH),
		chipAuthenticationPublicKey SubjectPublicKeyInfo,
		keyId INTEGER OPTIONAL
	}

	SubjectPublicKeyInfo ::= SEQUENCE {
		algorithm  AlgorithmIdentifier,
		subjectPublicKey BIT STRING
	}

	AlgorithmIdentifier ::= SEQUENCE {
		algorithm  OBJECT IDENTIFIER,
		parameters ANY DEFINED BY algorithm OPTIONAL
	}

Defined in: ChipAuthentication.js.

Class Summary
Constructor Attributes	Constructor Name and Description
	ChipAuthenticationPublicKeyInfo(the) Create a ChipAuthenticationPublicKeyInfo object

Method Summary
Method Attributes	Method Name and Description
<static>	ChipAuthenticationPublicKeyInfo.convertUnsignedInteger(value) Removes leading zeros and prepends a single '00' to ByteStrings which have the most significant bit set.
<static>	ChipAuthenticationPublicKeyInfo.createECSubjectPublicKeyInfo(publicKey, encodeECDomainParameter) Creates the EC Public Key as subjectPublicKeyInfo TLV structure object.
	toTLV() Convert object to TLV structure

Class Detail

ChipAuthenticationPublicKeyInfo(the)

Create a ChipAuthenticationPublicKeyInfo object

Parameters:
{ASN1} the: optional tlv structure to initialize the object

Method Detail

<static> {ByteString} ChipAuthenticationPublicKeyInfo.convertUnsignedInteger(value)

Removes leading zeros and prepends a single '00' to ByteStrings which have the most significant bit set. This prevent interpretation of the integer representation if converted into a signed ASN1 INTEGER.

Parameters:
{ByteString} value: the value to convert

Returns:: the converted value

<static> {ASN1} ChipAuthenticationPublicKeyInfo.createECSubjectPublicKeyInfo(publicKey, encodeECDomainParameter)

Creates the EC Public Key as subjectPublicKeyInfo TLV structure object.

The structure is defined as:

	SubjectPublicKeyInfo  ::=  SEQUENCE  {
		algorithm            AlgorithmIdentifier,
		subjectPublicKey     BIT STRING  }

	AlgorithmIdentifier  ::=  SEQUENCE  {
		algorithm               OBJECT IDENTIFIER,
		parameters              ANY DEFINED BY algorithm OPTIONAL  }

	id-ecPublicKey OBJECT IDENTIFIER ::= {
		iso(1) member-body(2) us(840) ansi-X9-62(10045) keyType(2) 1 }

	ECParameters ::= CHOICE {
		namedCurve         OBJECT IDENTIFIER,
		implicitCurve      NULL,
		specifiedCurve     SpecifiedECDomain }

Parameters:
publicKey
encodeECDomainParameter

Returns:: the subjectPublicKey TLV structure

{ASN1} toTLV()

Convert object to TLV structure

Returns:: the TLV structure

Classes

Class ChipAuthenticationPublicKeyInfo