Module io.helidon.common.crypto

Package io.helidon.common.crypto

Class PasswordKeyDerivation

java.lang.Object

io.helidon.common.crypto.PasswordKeyDerivation

public class PasswordKeyDerivation
extends Object

Util class used for encryption key derivation from the password.

Method Summary

Modifier and Type	Method	Description
static byte[]	deriveKey(char[] password, byte[] salt, int iterations, int keySize)	Derive key from the password with the usage of the salt.
static byte[]	deriveKey(String algorithm, String provider, char[] password, byte[] salt, int iterations, int keySize)	Derive key from the password with the usage of the salt and selected algorithm.

Methods inherited from class java.lang.Object

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

Method Details

deriveKey

public static byte[] deriveKey(char[] password,
 byte[] salt,
 int iterations,
 int keySize)

Derive key from the password with the usage of the salt.
Uses algorithm PBKDF2WithHmacSHA256 for password derivation by default.

Parameters:

password - base for key derivation

salt - salt for key derivation

iterations - number of iterations used in derivation

keySize - output key size in bits

Returns:

derived key from the password

deriveKey

public static byte[] deriveKey(String algorithm,
 String provider,
 char[] password,
 byte[] salt,
 int iterations,
 int keySize)

Derive key from the password with the usage of the salt and selected algorithm.

Parameters:

algorithm - algorithm to be used for derivation

provider - provider of the algorithm

password - base for key derivation

salt - salt for key derivation

iterations - number of iterations used in derivation

keySize - output key size in bits

Returns:

derived key from the password