Module page.codeberg.friedolyn.Friedolyn

Package page.codeberg.friedolyn.crypto

Enum Class Argon2Variant

java.lang.Object

java.lang.Enum<Argon2Variant>

page.codeberg.friedolyn.crypto.Argon2Variant

All Implemented Interfaces:

Serializable, Comparable<Argon2Variant>, Constable

public enum Argon2Variant
extends Enum<Argon2Variant>

The variant of the Argon2 key derivation function that shall be used. Strongly recommended: ARGON2_ID.

See Also:

• ARGON2_ID
• ARGON2_D
• ARGON2_I

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
ARGON2_D	Argon2d is optimized for settings where the adversary does not get regular access to system memory or CPU, i.e., they cannot run side-channel attacks based on the timing information, nor can they recover the password much faster using garbage collection.
ARGON2_I	Argon2i is optimized to resist side-channel attacks.
ARGON2_ID	Argon2id is a hybrid version.

Field Summary

Fields

Modifier and Type	Field	Description
final int	variant

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Argon2Variant(int variant)

Method Summary

Modifier and Type	Method	Description
static Argon2Variant	valueOf(String name)	Returns the enum constant of this class with the specified name.
static Argon2Variant[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

ARGON2_D

public static final Argon2Variant ARGON2_D

Argon2d is optimized for settings where the adversary does not get regular access to system memory or CPU, i.e., they cannot run side-channel attacks based on the timing information, nor can they recover the password much faster using garbage collection. These settings are more typical for backend servers and cryptocurrency minings.
– RFC 9106, Section 4

ARGON2_I

public static final Argon2Variant ARGON2_I

Argon2i is optimized to resist side-channel attacks. It accesses the memory array in a password independent order.
– Wikipedia

ARGON2_ID

public static final Argon2Variant ARGON2_ID

Argon2id is a hybrid version. It follows the Argon2i approach for the first half pass over memory and the Argon2d approach for subsequent passes. RFC 9106 recommends using Argon2id if you do not know the difference between the types or you consider side-channel attacks to be a viable threat.
– Wikipedia

Argon2id is optimized for more realistic settings, where the adversary can possibly access the same machine, use its CPU, or mount cold-boot attacks.
– RFC 9106, Section 4

Field Details

variant

public final int variant

Constructor Details

Argon2Variant

private Argon2Variant(int variant)

Method Details

values

public static Argon2Variant[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static Argon2Variant valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null