Package org.conscrypt

Class OpenSSLMac

java.lang.Object

javax.crypto.MacSpi

org.conscrypt.OpenSSLMac

Direct Known Subclasses:

OpenSSLMac.AesCmac, OpenSSLMac.Hmac

@Internal
public abstract class OpenSSLMac
extends javax.crypto.MacSpi

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

Nested Class Summary

Nested Classes

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

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	initialized
private byte[]	singleByte	Holds a dummy buffer for writing single bytes to the digest.
private 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(java.security.Key key, java.security.spec.AlgorithmParameterSpec params)
protected void	engineReset()
protected void	engineUpdate(byte input)
protected void	engineUpdate(java.nio.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 javax.crypto.MacSpi

clone, engineUpdate

Methods inherited from class java.lang.Object

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

Field Detail

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 Detail

OpenSSLMac

private OpenSSLMac(int size)

Method Detail

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 javax.crypto.MacSpi

engineInit

protected void engineInit(java.security.Key key,
                          java.security.spec.AlgorithmParameterSpec params)
                   throws java.security.InvalidKeyException,
                          java.security.InvalidAlgorithmParameterException

Specified by:

engineInit in class javax.crypto.MacSpi

Throws:

java.security.InvalidKeyException

java.security.InvalidAlgorithmParameterException

engineUpdate

protected void engineUpdate(byte input)

Specified by:

engineUpdate in class javax.crypto.MacSpi

engineUpdate

protected void engineUpdate(java.nio.ByteBuffer input)

Overrides:

engineUpdate in class javax.crypto.MacSpi

engineDoFinal

protected byte[] engineDoFinal()

Specified by:

engineDoFinal in class javax.crypto.MacSpi

doFinal

protected abstract byte[] doFinal()

engineReset

protected void engineReset()

Specified by:

engineReset in class javax.crypto.MacSpi