Package net.schmizz.sshj.userauth.keyprovider

Class V3PuTTYSecretKeyDerivationFunction

java.lang.Object

net.schmizz.sshj.userauth.keyprovider.V3PuTTYSecretKeyDerivationFunction

All Implemented Interfaces:

PuTTYSecretKeyDerivationFunction

class V3PuTTYSecretKeyDerivationFunction
extends Object
implements PuTTYSecretKeyDerivationFunction

PuTTY Key Derivation Function supporting Version 3 Key files with Argon2 Key Derivation using Bouncy Castle

Field Summary

Fields

Modifier and Type	Field	Description
private final Map<String,String>	headers
private static final int	KEY_LENGTH
private static final String	SECRET_KEY_ALGORITHM

Constructor Summary

Constructors

Constructor	Description
V3PuTTYSecretKeyDerivationFunction(Map<String,String> headers)

Method Summary

Modifier and Type	Method	Description
SecretKey	deriveSecretKey(char[] passphrase)	Derive Secret Key from provided passphrase characters
private int	getAlgorithmType()
private org.bouncycastle.crypto.params.Argon2Parameters	getParameters()

Methods inherited from class java.lang.Object

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

Field Details

SECRET_KEY_ALGORITHM

private static final String SECRET_KEY_ALGORITHM

See Also:

• Constant Field Values

KEY_LENGTH

private static final int KEY_LENGTH

See Also:

• Constant Field Values

headers

private final Map<String,String> headers

Constructor Details

V3PuTTYSecretKeyDerivationFunction

V3PuTTYSecretKeyDerivationFunction(Map<String,String> headers)

Method Details

deriveSecretKey

public SecretKey deriveSecretKey(char[] passphrase)

Derive Secret Key from provided passphrase characters

Specified by:

deriveSecretKey in interface PuTTYSecretKeyDerivationFunction

Parameters:

passphrase - Passphrase characters required

Returns:

Derived Secret Key

getParameters

private org.bouncycastle.crypto.params.Argon2Parameters getParameters()

getAlgorithmType

private int getAlgorithmType()