Package org.conscrypt

Class OpenSSLMac

java.lang.Object

javax.crypto.MacSpi

org.conscrypt.OpenSSLMac

Direct Known Subclasses:

OpenSSLMac.HmacMD5, OpenSSLMac.HmacSHA1, OpenSSLMac.HmacSHA224, OpenSSLMac.HmacSHA256, OpenSSLMac.HmacSHA384, OpenSSLMac.HmacSHA512

@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.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
private NativeRef.HMAC_CTX	ctx
private long	evp_md	Holds the EVP_MD for the hashing algorithm, e.g.
private byte[]	keyBytes	The secret key used in this keyed MAC.
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(long evp_md, int size)

Method Summary

Modifier and Type	Method	Description
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(byte[] input, int offset, int len)
protected void	engineUpdate(java.nio.ByteBuffer input)
private void	resetContext()

Methods inherited from class javax.crypto.MacSpi

clone

Methods inherited from class java.lang.Object

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

Field Detail

ctx

private NativeRef.HMAC_CTX ctx

evp_md

private final long evp_md

Holds the EVP_MD for the hashing algorithm, e.g. EVP_get_digestbyname("sha1");

keyBytes

private byte[] keyBytes

The secret key used in this keyed MAC.

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.

Constructor Detail

OpenSSLMac

private OpenSSLMac(long evp_md,
                   int size)

Method Detail

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

resetContext

private final void resetContext()

engineUpdate

protected void engineUpdate(byte input)

Specified by:

engineUpdate in class javax.crypto.MacSpi

engineUpdate

protected void engineUpdate(byte[] input,
                            int offset,
                            int len)

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

engineReset

protected void engineReset()

Specified by:

engineReset in class javax.crypto.MacSpi