Package com.fortanix.sdkms.jce.provider.ciphers

Class DSMACipher

java.lang.Object

com.fortanix.sdkms.jce.provider.ciphers.DSMACipher

public class DSMACipher
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DSMACipher.CipherAndTag

Constructor Summary

Constructors

Constructor	Description
DSMACipher()

Method Summary

Modifier and Type	Method	Description
static void	attachGCMTag(ByteArrayOutputStream cipherStream, com.fortanix.sdkms.v1.model.CryptMode mode, byte[] gcmTag, int expectedTagLength)	Prefix gcm tag to cipher text
static byte[]	decrypt(Integer tagLength, com.fortanix.sdkms.v1.model.DecryptRequestEx decryptRequest)
static byte[]	encrypt(com.fortanix.sdkms.v1.model.EncryptRequestEx encryptRequest)
static DSMACipher.CipherAndTag	extractGCMTag(int tagLength, byte[] cipherTagBytes, int cipherTagOffset, int cipherTagLen)
static boolean	isGCM(com.fortanix.sdkms.v1.model.CryptMode mode)

Methods inherited from class java.lang.Object

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

Constructor Detail

DSMACipher

public DSMACipher()

Method Detail

attachGCMTag

public static void attachGCMTag(ByteArrayOutputStream cipherStream,
                                com.fortanix.sdkms.v1.model.CryptMode mode,
                                byte[] gcmTag,
                                int expectedTagLength)
                         throws IOException

Prefix gcm tag to cipher text

Parameters:

cipherStream -

mode -

gcmTag -

expectedTagLength - gcmTag.length should match to this

Throws:

IOException

encrypt

public static byte[] encrypt(com.fortanix.sdkms.v1.model.EncryptRequestEx encryptRequest)

decrypt

public static byte[] decrypt(Integer tagLength,
                             com.fortanix.sdkms.v1.model.DecryptRequestEx decryptRequest)

isGCM

public static boolean isGCM(com.fortanix.sdkms.v1.model.CryptMode mode)

extractGCMTag

public static DSMACipher.CipherAndTag extractGCMTag(int tagLength,
                                                    byte[] cipherTagBytes,
                                                    int cipherTagOffset,
                                                    int cipherTagLen)