Package io.getlime.security.powerauth.crypto.lib.encryptor.ecies.kdf

Class KdfX9_63

java.lang.Object

io.getlime.security.powerauth.crypto.lib.encryptor.ecies.kdf.KdfX9_63

public class KdfX9_63
extends Object

Implementation of X9.63 KDF function with SHA256 digest type.

Author:

Petr Dvorak, petr@wultra.com

Constructor Summary

Constructors

Constructor	Description
KdfX9_63()

Method Summary

Modifier and Type	Method	Description
static byte[]	derive(byte[] secret, byte[] sharedInfo, int outputBytes)	Derive a new key using X9.63 with SHA256 digest.

Methods inherited from class java.lang.Object

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

Constructor Details

KdfX9_63

public KdfX9_63()

Method Details

derive

public static byte[] derive(byte[] secret,
 byte[] sharedInfo,
 int outputBytes)
                     throws GenericCryptoException

Derive a new key using X9.63 with SHA256 digest.

Parameters:

secret - Secret key to be used as the derivation base key.

sharedInfo - Extra information used for derived key computation.

outputBytes - Requested size of the key.

Returns:

Derived key using the X9.63 KDF with SHA256 digest.

Throws:

GenericCryptoException - In case key derivation fails.