Package org.conscrypt

Class OpenSSLMessageDigestJDK

java.lang.Object

java.security.MessageDigestSpi

org.conscrypt.OpenSSLMessageDigestJDK

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

OpenSSLMessageDigestJDK.MD5, OpenSSLMessageDigestJDK.SHA1, OpenSSLMessageDigestJDK.SHA224, OpenSSLMessageDigestJDK.SHA256, OpenSSLMessageDigestJDK.SHA384, OpenSSLMessageDigestJDK.SHA512

@Internal
public class OpenSSLMessageDigestJDK
extends java.security.MessageDigestSpi
implements java.lang.Cloneable

Implements the JDK MessageDigest interface using OpenSSL's EVP API.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	OpenSSLMessageDigestJDK.MD5
static class	OpenSSLMessageDigestJDK.SHA1
static class	OpenSSLMessageDigestJDK.SHA224
static class	OpenSSLMessageDigestJDK.SHA256
static class	OpenSSLMessageDigestJDK.SHA384
static class	OpenSSLMessageDigestJDK.SHA512

Field Summary

Fields

Modifier and Type	Field	Description
private NativeRef.EVP_MD_CTX	ctx
private boolean	digestInitializedInContext	Whether the digest struct has been initialized inside EVP_MD_CTX.
private long	evp_md	Holds the EVP_MD for the hashing algorithm, e.g.
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	OpenSSLMessageDigestJDK(long evp_md, int size)	Creates a new OpenSSLMessageDigest instance for the given algorithm name.
private	OpenSSLMessageDigestJDK(long evp_md, int size, NativeRef.EVP_MD_CTX ctx, boolean digestInitializedInContext)

Method Summary

Modifier and Type	Method	Description
java.lang.Object	clone()
protected byte[]	engineDigest()
protected int	engineGetDigestLength()
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	ensureDigestInitializedInContext()

Methods inherited from class java.security.MessageDigestSpi

engineDigest

Methods inherited from class java.lang.Object

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

Field Detail

ctx

private final NativeRef.EVP_MD_CTX ctx

evp_md

private final long evp_md

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

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.

digestInitializedInContext

private boolean digestInitializedInContext

Whether the digest struct has been initialized inside EVP_MD_CTX.

Constructor Detail

OpenSSLMessageDigestJDK

private OpenSSLMessageDigestJDK(long evp_md,
                                int size)
                         throws java.security.NoSuchAlgorithmException

Creates a new OpenSSLMessageDigest instance for the given algorithm name.

Throws:

java.security.NoSuchAlgorithmException

OpenSSLMessageDigestJDK

private OpenSSLMessageDigestJDK(long evp_md,
                                int size,
                                NativeRef.EVP_MD_CTX ctx,
                                boolean digestInitializedInContext)

Method Detail

ensureDigestInitializedInContext

private void ensureDigestInitializedInContext()

engineReset

protected void engineReset()

Specified by:

engineReset in class java.security.MessageDigestSpi

engineGetDigestLength

protected int engineGetDigestLength()

Overrides:

engineGetDigestLength in class java.security.MessageDigestSpi

engineUpdate

protected void engineUpdate(byte input)

Specified by:

engineUpdate in class java.security.MessageDigestSpi

engineUpdate

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

Specified by:

engineUpdate in class java.security.MessageDigestSpi

engineUpdate

protected void engineUpdate(java.nio.ByteBuffer input)

Overrides:

engineUpdate in class java.security.MessageDigestSpi

engineDigest

protected byte[] engineDigest()

Specified by:

engineDigest in class java.security.MessageDigestSpi

clone

public java.lang.Object clone()

Overrides:

clone in class java.security.MessageDigestSpi