Record Class DerivedKeyMaterial

java.lang.Object

java.lang.Record

net.jrodolfo.java_evolution.java25.key_derivation.DerivedKeyMaterial

Record Components:

algorithm - the KDF algorithm used by the example

contextLabel - the application context used during derivation

bytes - the derived key bytes

public record DerivedKeyMaterial(String algorithm, String contextLabel, byte[] bytes)
extends Record

Captures key material derived by the Java 25 KDF API.

The derived bytes are exposed for tests and learning. Production code should handle key material carefully and avoid logging or printing secrets.

Constructor Summary

Constructors

Constructor	Description
DerivedKeyMaterial(String algorithm, String contextLabel, byte[] bytes)	Creates an immutable holder for derived key bytes.

Method Summary

Modifier and Type	Method	Description
String	algorithm()	Returns the value of the algorithm record component.
int	byteLength()	Returns the number of derived bytes.
byte[]	bytes()	Returns the value of the bytes record component.
String	contextLabel()	Returns the value of the contextLabel record component.
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
final int	hashCode()	Returns a hash code value for this object.
String	hex()	Formats the derived bytes for deterministic tests and documentation.
final String	toString()	Returns a string representation of this record class.

Methods inherited from class Object

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

Constructor Details

DerivedKeyMaterial

public DerivedKeyMaterial(String algorithm,
 String contextLabel,
 byte[] bytes)

Creates an immutable holder for derived key bytes.

Method Details

bytes

public byte[] bytes()

Returns the value of the bytes record component.

Returns:

the value of the bytes record component

byteLength

public int byteLength()

Returns the number of derived bytes.

Returns:

derived key material length in bytes

hex

public String hex()

Formats the derived bytes for deterministic tests and documentation.

Returns:

hexadecimal representation of the derived bytes

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise.

algorithm

public String algorithm()

Returns the value of the algorithm record component.

Returns:

the value of the algorithm record component

contextLabel

public String contextLabel()

Returns the value of the contextLabel record component.

Returns:

the value of the contextLabel record component