Class OpenSSLMac

java.lang.Object

javax.crypto.MacSpi

org.conscrypt.OpenSSLMac

Direct Known Subclasses:

OpenSSLMac.AesCmac, OpenSSLMac.Hmac

@Internal
public abstract class OpenSSLMac
extends MacSpi

An implementation of Mac which uses BoringSSL to perform all the operations.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	OpenSSLMac.AesCmac
static class	OpenSSLMac.Hmac
static final class	OpenSSLMac.HmacMD5
static final class	OpenSSLMac.HmacSHA1
static final class	OpenSSLMac.HmacSHA224
static final class	OpenSSLMac.HmacSHA256
static final class	OpenSSLMac.HmacSHA384
static final class	OpenSSLMac.HmacSHA512

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	initialized
private final byte[]	singleByte	Holds a dummy buffer for writing single bytes to the digest.
private final int	size	Holds the output size of the message digest.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	OpenSSLMac(int size)

Method Summary

Modifier and Type	Method	Description
protected abstract byte[]	doFinal()
protected byte[]	engineDoFinal()
protected int	engineGetMacLength()
protected void	engineInit(Key key, AlgorithmParameterSpec params)
protected void	engineReset()
protected void	engineUpdate(byte input)
protected void	engineUpdate(ByteBuffer input)
protected abstract void	initContext(byte[] keyBytes)	Creates and initializes the relevant BoringSSL *MAC context.
protected abstract void	resetContext()	Resets the context for a new operation with the same key.
protected abstract void	updateDirect(long ptr, int len)	Passes the contents of a direct ByteBuffer to the relevant BoringSSL *MAC function.

Methods inherited from class MacSpi

clone, engineUpdate

Methods inherited from class Object

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

Field Details

size

private final int size

Holds the output size of the message digest.

singleByte

private final byte[] singleByte

Holds a dummy buffer for writing single bytes to the digest.

initialized

protected boolean initialized

Constructor Details

OpenSSLMac

private OpenSSLMac(int size)

Method Details

initContext

protected abstract void initContext(byte[] keyBytes)

Creates and initializes the relevant BoringSSL *MAC context.

resetContext

protected abstract void resetContext()

Resets the context for a new operation with the same key.

updateDirect

protected abstract void updateDirect(long ptr,
 int len)

Passes the contents of a direct ByteBuffer to the relevant BoringSSL *MAC function.

engineGetMacLength

protected int engineGetMacLength()

Specified by:

engineGetMacLength in class MacSpi

engineInit

protected void engineInit(Key key,
 AlgorithmParameterSpec params)
                   throws InvalidKeyException,
InvalidAlgorithmParameterException

Specified by:

engineInit in class MacSpi

Throws:

InvalidKeyException

InvalidAlgorithmParameterException

engineUpdate

protected void engineUpdate(byte input)

Specified by:

engineUpdate in class MacSpi

engineUpdate

protected void engineUpdate(ByteBuffer input)

Overrides:

engineUpdate in class MacSpi

engineDoFinal

protected byte[] engineDoFinal()

Specified by:

engineDoFinal in class MacSpi

doFinal

protected abstract byte[] doFinal()

engineReset

protected void engineReset()

Specified by:

engineReset in class MacSpi