Package net.overburn.redfort.keygen

Class ChaCha20KeyGenerator

java.lang.Object

net.overburn.redfort.keygen.ChaCha20KeyGenerator

All Implemented Interfaces:

BasicKeyGenerator, SymmetricKeyGenerator

public class ChaCha20KeyGenerator
extends Object
implements SymmetricKeyGenerator

Derives a suitable key from a random seed. Uses ChaCha20 by default. Use only when there is an established protocol to exchange keys. For more info look:

See Also:

• rfc8439

Field Summary

Fields inherited from interface net.overburn.redfort.keygen.BasicKeyGenerator

AES, ARGON2, CHACHA20, DEFAULT_KEY_LENGTH, PBKDF2_WITH_HMAC_SHA_512

Constructor Summary

Constructors

Constructor	Description
ChaCha20KeyGenerator()

Method Summary

Modifier and Type	Method	Description
byte[]	derive(int keyLen)	Derives a suitable key from a secret/password, salt, extra secret for keyed hashing.
SecretKeySpec	generate()
SecretKeySpec	wrap(byte[] rawKey)
SecretKeySpec	wrap(String rawKey)

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.overburn.redfort.keygen.BasicKeyGenerator

wrap, wrap

Constructor Details

ChaCha20KeyGenerator

public ChaCha20KeyGenerator()

Method Details

generate

public SecretKeySpec generate()

Specified by:

generate in interface SymmetricKeyGenerator

derive

public byte[] derive(int keyLen)

Description copied from interface: SymmetricKeyGenerator

Derives a suitable key from a secret/password, salt, extra secret for keyed hashing. Additional info can be used to tag.

Specified by:

derive in interface SymmetricKeyGenerator

Parameters:

keyLen - length of key supplied scrambler. Take utmost care.

Returns:

key that can be wrapped and supplied to Scrambler

wrap

public SecretKeySpec wrap(byte[] rawKey)

wrap

public SecretKeySpec wrap(String rawKey)