Package com.nimbusds.openid.connect.sdk.id

Class HashBasedPairwiseSubjectCodec

java.lang.Object

com.nimbusds.openid.connect.sdk.id.PairwiseSubjectCodec

com.nimbusds.openid.connect.sdk.id.HashBasedPairwiseSubjectCodec

@ThreadSafe
public class HashBasedPairwiseSubjectCodec
extends PairwiseSubjectCodec

SHA-256 based encoder of pairwise subject identifiers. Reversal is not supported.

Algorithm:

 sub = SHA-256 ( sector_id || local_sub || salt )
 

Related specifications:

• OpenID Connect Core 1.0, section 8.1.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	HASH_ALGORITHM	The hashing algorithm.

Fields inherited from class com.nimbusds.openid.connect.sdk.id.PairwiseSubjectCodec

CHARSET

Constructor Summary

Constructors

Constructor	Description
HashBasedPairwiseSubjectCodec(byte[] salt)	Creates a new hash-based codec for pairwise subject identifiers.
HashBasedPairwiseSubjectCodec(com.nimbusds.jose.util.Base64URL salt)	Creates a new hash-based codec for pairwise subject identifiers.

Method Summary

Modifier and Type	Method	Description
Subject	encode(SectorID sectorID, Subject localSub)	Encodes a new pairwise subject identifier from the specified sector identifier and local subject.

Methods inherited from class com.nimbusds.openid.connect.sdk.id.PairwiseSubjectCodec

decode, encode, getProvider, getSalt, setProvider

Methods inherited from class java.lang.Object

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

Field Details

HASH_ALGORITHM

public static final String HASH_ALGORITHM

The hashing algorithm.

See Also:

• Constant Field Values

Constructor Details

HashBasedPairwiseSubjectCodec

public HashBasedPairwiseSubjectCodec(byte[] salt)

Creates a new hash-based codec for pairwise subject identifiers.

Parameters:

salt - The salt, must not be null.

HashBasedPairwiseSubjectCodec

public HashBasedPairwiseSubjectCodec(com.nimbusds.jose.util.Base64URL salt)

Creates a new hash-based codec for pairwise subject identifiers.

Parameters:

salt - The salt, must not be null.

Method Details

encode

public Subject encode(SectorID sectorID,
 Subject localSub)

Description copied from class: PairwiseSubjectCodec

Encodes a new pairwise subject identifier from the specified sector identifier and local subject.

Specified by:

encode in class PairwiseSubjectCodec

Parameters:

sectorID - The sector identifier. Must not be null.

localSub - The local subject identifier. Must not be null.

Returns:

The pairwise subject identifier.