Package com.nimbusds.openid.connect.sdk.assurance.evidences.attachment

Class Digest

java.lang.Object

com.nimbusds.openid.connect.sdk.assurance.evidences.attachment.Digest

@Immutable
public final class Digest
extends Object

Cryptographic digest.

Related specifications:

• OpenID Connect for Identity Assurance 1.0, section 5.1.2.2.

Constructor Summary

Constructors

Constructor	Description
Digest(HashAlgorithm alg, com.nimbusds.jose.util.Base64 value)	Creates a new cryptographic digest.

Method Summary

Modifier and Type	Method	Description
static Digest	compute(HashAlgorithm alg, byte[] content)	Computes the digest for the specified content.
static Digest	compute(HashAlgorithm alg, com.nimbusds.jose.util.Base64 content)	Computes the digest for the specified content.
boolean	equals(Object o)
HashAlgorithm	getHashAlgorithm()	Returns the hash algorithm.
com.nimbusds.jose.util.Base64	getValue()	Returns the hash value.
int	hashCode()
boolean	matches(com.nimbusds.jose.util.Base64 content)	Returns true if this digest matches the computed for the specified content.
static Digest	parse(net.minidev.json.JSONObject jsonObject)	Parses a digest from the specified JSON object.
net.minidev.json.JSONObject	toJSONObject()	Returns a JSON object representation of this cryptographic digest.

Methods inherited from class java.lang.Object

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

Constructor Detail

Digest

public Digest(HashAlgorithm alg,
              com.nimbusds.jose.util.Base64 value)

Creates a new cryptographic digest.

Parameters:

alg - The hash algorithm. Must not be null.

value - The hash value. Must not be null.

Method Detail

getHashAlgorithm

public HashAlgorithm getHashAlgorithm()

Returns the hash algorithm.

Returns:

The hash algorithm.

getValue

public com.nimbusds.jose.util.Base64 getValue()

Returns the hash value.

Returns:

the hash value.

matches

public boolean matches(com.nimbusds.jose.util.Base64 content)
                throws NoSuchAlgorithmException

Returns true if this digest matches the computed for the specified content.

Parameters:

content - The content. Must not be null.

Returns:

If true if the digest matches the content, else false.

Throws:

NoSuchAlgorithmException - If the hash algorithm isn't supported.

toJSONObject

public net.minidev.json.JSONObject toJSONObject()

Returns a JSON object representation of this cryptographic digest.

Returns:

The JSON object.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compute

public static Digest compute(HashAlgorithm alg,
                             com.nimbusds.jose.util.Base64 content)
                      throws NoSuchAlgorithmException

Computes the digest for the specified content.

Parameters:

alg - The hash algorithm. Must not be null.

content - The content. Must not be null.

Returns:

The digest.

Throws:

NoSuchAlgorithmException - If the hash algorithm isn't supported.

compute

public static Digest compute(HashAlgorithm alg,
                             byte[] content)
                      throws NoSuchAlgorithmException

Computes the digest for the specified content.

Parameters:

alg - The hash algorithm. Must not be null.

content - The content. Must not be null.

Returns:

The digest.

Throws:

NoSuchAlgorithmException - If the hash algorithm isn't supported.

parse

public static Digest parse(net.minidev.json.JSONObject jsonObject)
                    throws ParseException

Parses a digest from the specified JSON object.

Parameters:

jsonObject - The JSON object.

Returns:

The cryptographic digest.

Throws:

ParseException - If parsing failed.