org.bouncycastle.openpgp.operator.bc

Class BcPGPS2KCalculator

java.lang.Object

org.bouncycastle.openpgp.operator.bc.BcPGPS2KCalculator

All Implemented Interfaces:

PGPS2KCalculator

public class BcPGPS2KCalculator
extends java.lang.Object
implements PGPS2KCalculator

A PGPS2KCalculator backed by the lightweight Argon2BytesGenerator. The cost parameters are bounded by the caller (PGPUtil.makeKeyFromPassPhrase) before this is invoked.

Constructor Summary

Constructors

Constructor and Description
BcPGPS2KCalculator()

Method Summary

Modifier and Type	Method and Description
int	getType() Return the algorithm type
byte[]	makeKey(char[] passPhrase, S2K s2k, int keyLen) Derive keyLen bytes from the supplied passphrase using the parameters carried by the given Argon2 S2K specifier.

Methods inherited from class java.lang.Object

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

Constructor Detail

BcPGPS2KCalculator

public BcPGPS2KCalculator()

Method Detail

getType

public int getType()

Description copied from interface: PGPS2KCalculator

Return the algorithm type

Specified by:

getType in interface PGPS2KCalculator

makeKey

public byte[] makeKey(char[] passPhrase,
                      S2K s2k,
                      int keyLen)
               throws PGPException

Description copied from interface: PGPS2KCalculator

Derive keyLen bytes from the supplied passphrase using the parameters carried by the given Argon2 S2K specifier.

Specified by:

makeKey in interface PGPS2KCalculator

Parameters:

passPhrase - the passphrase.

s2k - an S2K.ARGON_2 S2K carrying the salt, passes, parallelism and memory size.

keyLen - the number of key bytes to produce.

Returns:

the derived key.

Throws:

PGPException - on error.