Package de.gematik.ti.vauchannel.protocol.helpers

Class AESGCM

java.lang.Object

de.gematik.ti.vauchannel.protocol.helpers.AESGCM

public class AESGCM
extends java.lang.Object

Author:

matthias.unverzagt

Field Summary

Fields

Modifier and Type	Field	Description
static int	AES_KEY_SIZE
static int	GCM_IV_LENGTH
static int	GCM_TAG_LENGTH

Constructor Summary

Constructors

Constructor	Description
AESGCM()

Method Summary

Modifier and Type	Method	Description
static byte[]	decrypt(byte[] encMessage, byte[] key)
static byte[]	decrypt(byte[] encMessage, byte[] key, byte[] associatedData)
static byte[]	encrypt(byte[] input, byte[] key)
static byte[]	encrypt(byte[] input, byte[] key, byte[] associatedData)
static byte[]	encrypt(byte[] input, byte[] key, byte[] associatedData, long counter)
static byte[]	encrypt(byte[] input, byte[] key, long counter)
static org.bouncycastle.crypto.io.CipherOutputStream	encrypt(java.io.OutputStream os, byte[] key)
static byte[]	generateIV()
static byte[]	generateIV(long counter)
static javax.crypto.SecretKey	generateSymmetricKey()
static javax.crypto.SecretKey	keyFromBytes(byte[] encodedKey)
static byte[]	longToBytes(long x)

Methods inherited from class java.lang.Object

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

Field Detail

AES_KEY_SIZE

public static final int AES_KEY_SIZE

See Also:

Constant Field Values

GCM_IV_LENGTH

public static final int GCM_IV_LENGTH

See Also:

Constant Field Values

GCM_TAG_LENGTH

public static final int GCM_TAG_LENGTH

See Also:

Constant Field Values

Constructor Detail

AESGCM

public AESGCM()

Method Detail

encrypt

public static byte[] encrypt(byte[] input,
                             byte[] key,
                             long counter)
                      throws java.lang.Exception

Throws:

java.lang.Exception

encrypt

public static byte[] encrypt(byte[] input,
                             byte[] key)
                      throws java.lang.Exception

Throws:

java.lang.Exception

encrypt

public static byte[] encrypt(byte[] input,
                             byte[] key,
                             byte[] associatedData)
                      throws java.lang.Exception

Throws:

java.lang.Exception

encrypt

public static byte[] encrypt(byte[] input,
                             byte[] key,
                             byte[] associatedData,
                             long counter)
                      throws java.lang.Exception

Throws:

java.lang.Exception

decrypt

public static byte[] decrypt(byte[] encMessage,
                             byte[] key)
                      throws java.lang.Exception

Throws:

java.lang.Exception

decrypt

public static byte[] decrypt(byte[] encMessage,
                             byte[] key,
                             byte[] associatedData)
                      throws java.lang.Exception

Throws:

java.lang.Exception

generateIV

public static byte[] generateIV()

generateIV

public static byte[] generateIV(long counter)

longToBytes

public static byte[] longToBytes(long x)

keyFromBytes

public static javax.crypto.SecretKey keyFromBytes(byte[] encodedKey)

generateSymmetricKey

public static javax.crypto.SecretKey generateSymmetricKey()

encrypt

public static org.bouncycastle.crypto.io.CipherOutputStream encrypt(java.io.OutputStream os,
                                                                    byte[] key)