Package de.gematik.rbellogger.util

Class CryptoUtils

java.lang.Object

de.gematik.rbellogger.util.CryptoUtils

public class CryptoUtils
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final int	GCM_IV_LENGTH_IN_BYTES
static final int	GCM_TAG_LENGTH_IN_BYTES

Method Summary

Modifier and Type	Method	Description
static Optional<byte[]>	decrypt(byte[] encMessage, Key secretKey)
static Optional<byte[]>	decrypt(byte[] encMessage, Key secretKey, int gcmIvLengthInBytes, int gcmTagLengthInBytes)
static byte[]	decryptUnsafe(byte[] encMessage, Key secretKey, int gcmIvLengthInBytes, int gcmTagLengthInBytes)
static byte[]	ecka(PrivateKey prk, PublicKey puk)
static byte[]	hkdf(byte[] ikm, byte[] info, int lengthInBytes)
static byte[]	hkdf(byte[] ikm, String info, int lengthInBytes)

Methods inherited from class java.lang.Object

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

Field Details

GCM_IV_LENGTH_IN_BYTES

public static final int GCM_IV_LENGTH_IN_BYTES

See Also:

• Constant Field Values

GCM_TAG_LENGTH_IN_BYTES

public static final int GCM_TAG_LENGTH_IN_BYTES

See Also:

• Constant Field Values

Method Details

ecka

public static byte[] ecka(PrivateKey prk,
 PublicKey puk)
                   throws NoSuchAlgorithmException,
InvalidKeyException

Throws:

NoSuchAlgorithmException

InvalidKeyException

hkdf

public static byte[] hkdf(byte[] ikm,
 String info,
 int lengthInBytes)
                   throws IllegalArgumentException,
org.bouncycastle.crypto.DataLengthException

Throws:

IllegalArgumentException

org.bouncycastle.crypto.DataLengthException

hkdf

public static byte[] hkdf(byte[] ikm,
 byte[] info,
 int lengthInBytes)
                   throws IllegalArgumentException,
org.bouncycastle.crypto.DataLengthException

Throws:

IllegalArgumentException

org.bouncycastle.crypto.DataLengthException

decrypt

public static Optional<byte[]> decrypt(byte[] encMessage,
 Key secretKey)

decrypt

public static Optional<byte[]> decrypt(byte[] encMessage,
 Key secretKey,
 int gcmIvLengthInBytes,
 int gcmTagLengthInBytes)

decryptUnsafe

public static byte[] decryptUnsafe(byte[] encMessage,
 Key secretKey,
 int gcmIvLengthInBytes,
 int gcmTagLengthInBytes)
                            throws GeneralSecurityException

Throws:

GeneralSecurityException