Package org.conscrypt

Class OpenSSLMessageDigestJDK

java.lang.Object

java.security.MessageDigestSpi

org.conscrypt.OpenSSLMessageDigestJDK

All Implemented Interfaces:

Cloneable

Direct Known Subclasses:

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

public class OpenSSLMessageDigestJDK
extends MessageDigestSpi
implements 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

Method Summary

Modifier and Type	Method	Description
Object	clone()	Creates and returns a copy of this Object.
protected byte[]	engineDigest()	Computes and returns the final hash value for this MessageDigestSpi.
protected int	engineGetDigestLength()	Returns the engine digest length in bytes.
protected void	engineReset()	Puts this MessageDigestSpi back in an initial state, such that it is ready to compute a one way hash value.
protected void	engineUpdate(byte input)	Updates this MessageDigestSpi using the given byte.
protected void	engineUpdate(byte[] input, int offset, int len)	Updates this MessageDigestSpi using the given byte[].
protected void	engineUpdate(ByteBuffer input)	Updates this MessageDigestSpi using the given input.

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

Method Detail

engineReset

protected void engineReset()

Description copied from class: MessageDigestSpi

Puts this MessageDigestSpi back in an initial state, such that it is ready to compute a one way hash value.

Specified by:

engineReset in class MessageDigestSpi

engineGetDigestLength

protected int engineGetDigestLength()

Description copied from class: MessageDigestSpi

Returns the engine digest length in bytes. If the implementation does not implement this function 0 is returned.

Overrides:

engineGetDigestLength in class MessageDigestSpi

Returns:

the digest length in bytes, or 0.

engineUpdate

protected void engineUpdate(byte input)

Description copied from class: MessageDigestSpi

Updates this MessageDigestSpi using the given byte.

Specified by:

engineUpdate in class MessageDigestSpi

Parameters:

input - the byte to update this MessageDigestSpi with.

See Also:

MessageDigestSpi.engineReset()

engineUpdate

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

Description copied from class: MessageDigestSpi

Updates this MessageDigestSpi using the given byte[].

Specified by:

engineUpdate in class MessageDigestSpi

Parameters:

input - the byte array.

offset - the index of the first byte in input to update from.

len - the number of bytes in input to update from.

engineUpdate

protected void engineUpdate(ByteBuffer input)

Description copied from class: MessageDigestSpi

Updates this MessageDigestSpi using the given input.

Overrides:

engineUpdate in class MessageDigestSpi

Parameters:

input - the ByteBuffer.

engineDigest

protected byte[] engineDigest()

Description copied from class: MessageDigestSpi

Computes and returns the final hash value for this MessageDigestSpi. After the digest is computed the receiver is reset.

Specified by:

engineDigest in class MessageDigestSpi

Returns:

the computed one way hash value.

See Also:

MessageDigestSpi.engineReset()

clone

public Object clone()

Description copied from class: Object

Creates and returns a copy of this Object. The default implementation returns a so-called "shallow" copy: It creates a new instance of the same class and then copies the field values (including object references) from this instance to the new instance. A "deep" copy, in contrast, would also recursively clone nested objects. A subclass that needs to implement this kind of cloning should call super.clone() to create the new instance and then create deep copies of the nested, mutable objects.

Overrides:

clone in class MessageDigestSpi

Returns:

a copy of this object.