Package com.goterl.lazysodium.interfaces

Interface KeyDerivation.Native

All Known Implementing Classes:

LazySodium, LazySodiumJava

Enclosing interface:

KeyDerivation

public static interface KeyDerivation.Native

Method Summary

Modifier and Type	Method	Description
int	cryptoKdfDeriveFromKey(byte[] subKey, int subKeyLen, long subKeyId, byte[] context, byte[] masterKey)	Derive a subkey from a master key.
void	cryptoKdfKeygen(byte[] masterKey)	Creates a master key.

Method Detail

cryptoKdfKeygen

void cryptoKdfKeygen(byte[] masterKey)

Creates a master key.

Parameters:

masterKey - The byte array to populate. Should be KeyDerivation.MASTER_KEY_BYTES.

cryptoKdfDeriveFromKey

int cryptoKdfDeriveFromKey(byte[] subKey,
                           int subKeyLen,
                           long subKeyId,
                           byte[] context,
                           byte[] masterKey)

Derive a subkey from a master key.

Parameters:

subKey - The subkey.

subKeyLen - The length of the subkey. Should be from KeyDerivation.BYTES_MIN to KeyDerivation.BYTES_MAX.

subKeyId - ID of subkey.

context - The context of the subkey. Must be KeyDerivation.CONTEXT_BYTES.

masterKey - The generated master key from cryptoKdfKeygen(byte[]). Must be KeyDerivation.MASTER_KEY_BYTES.

Returns:

0 on success, -1 otherwise.