com.virgilsecurity.crypto

Class VirgilChunkCipher

java.lang.Object

com.virgilsecurity.crypto.VirgilCipherBase

com.virgilsecurity.crypto.VirgilChunkCipher

All Implemented Interfaces:

AutoCloseable

public class VirgilChunkCipher
extends VirgilCipherBase
implements AutoCloseable

This class provides high-level interface to encrypt / decrypt data splitted to chunks.

Author:

Andrii Iakovenko

Field Summary

Fields

Modifier and Type	Field and Description
static long	kPreferredChunkSize

Fields inherited from class com.virgilsecurity.crypto.VirgilCipherBase

swigCMemOwn

Constructor Summary

Constructors

Modifier	Constructor and Description
	VirgilChunkCipher() Create a new instance of VirgilChunkCipher
protected	VirgilChunkCipher(long cPtr, boolean cMemoryOwn)

Method Summary

Modifier and Type	Method and Description
void	close()
void	decryptWithKey(VirgilDataSource source, VirgilDataSink sink, byte[] recipientId, byte[] privateKey) Decrypt data read from given source for recipient defined by id and private key, and write it to the sink.
void	decryptWithKey(VirgilDataSource source, VirgilDataSink sink, byte[] recipientId, byte[] privateKey, byte[] privateKeyPassword) Decrypt data read from given source for recipient defined by id and private key, and write it to the sink.
void	decryptWithPassword(VirgilDataSource source, VirgilDataSink sink, byte[] pwd) Decrypt data read from given source for recipient defined by id and private key, and write it to the sink.
void	delete()
void	encrypt(VirgilDataSource source, VirgilDataSink sink) Encrypt data read from given source and write it the sink.
void	encrypt(VirgilDataSource source, VirgilDataSink sink, boolean embedContentInfo) Encrypt data read from given source and write it the sink.
void	encrypt(VirgilDataSource source, VirgilDataSink sink, boolean embedContentInfo, long preferredChunkSize) Encrypt data read from given source and write it the sink.
protected void	finalize()
protected static long	getCPtr(VirgilChunkCipher obj)

Methods inherited from class com.virgilsecurity.crypto.VirgilCipherBase

addKeyRecipient, addPasswordRecipient, computeShared, computeShared, customParams, defineContentInfoSize, getContentInfo, getCPtr, keyRecipientExists, passwordRecipientExists, removeAllRecipients, removeKeyRecipient, removePasswordRecipient, setContentInfo

Methods inherited from class java.lang.Object

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

Field Detail

kPreferredChunkSize

public static final long kPreferredChunkSize

Constructor Detail

VirgilChunkCipher

protected VirgilChunkCipher(long cPtr,
                            boolean cMemoryOwn)

VirgilChunkCipher

public VirgilChunkCipher()

Create a new instance of VirgilChunkCipher

Method Detail

getCPtr

protected static long getCPtr(VirgilChunkCipher obj)

finalize

protected void finalize()

Overrides:

finalize in class VirgilCipherBase

delete

public void delete()

Overrides:

delete in class VirgilCipherBase

close

public void close()

Specified by:

close in interface AutoCloseable

Overrides:

close in class VirgilCipherBase

encrypt

public void encrypt(VirgilDataSource source,
                    VirgilDataSink sink,
                    boolean embedContentInfo,
                    long preferredChunkSize)

Encrypt data read from given source and write it the sink.

Parameters:

source - The source of the data to be encrypted.

sink - The target sink for encrypted data.

embedContentInfo - Determines whether to embed content info the the encrypted data, or not.

preferredChunkSize - Chunk size that will appropriate.

encrypt

public void encrypt(VirgilDataSource source,
                    VirgilDataSink sink,
                    boolean embedContentInfo)

Encrypt data read from given source and write it the sink.

Parameters:

source - The source of the data to be encrypted.

sink - The target sink for encrypted data.

embedContentInfo - Determines whether to embed content info the the encrypted data, or not.

encrypt

public void encrypt(VirgilDataSource source,
                    VirgilDataSink sink)

Encrypt data read from given source and write it the sink.

Parameters:

source - The source of the data to be encrypted.

sink - The target sink for encrypted data.

decryptWithKey

public void decryptWithKey(VirgilDataSource source,
                           VirgilDataSink sink,
                           byte[] recipientId,
                           byte[] privateKey,
                           byte[] privateKeyPassword)

Decrypt data read from given source for recipient defined by id and private key, and write it to the sink.

Parameters:

source - The source of the data to be decrypted.

sink - The target sink for decrypted data.

recipientId - The recipient identifier.

privateKey - Recipient's private key protected with password.

privateKeyPassword - The private key password.

decryptWithKey

public void decryptWithKey(VirgilDataSource source,
                           VirgilDataSink sink,
                           byte[] recipientId,
                           byte[] privateKey)

Decrypt data read from given source for recipient defined by id and private key, and write it to the sink.

Parameters:

source - The source of the data to be decrypted.

sink - The target sink for decrypted data.

recipientId - The recipient identifier.

privateKey - Recipient's private key.

decryptWithPassword

public void decryptWithPassword(VirgilDataSource source,
                                VirgilDataSink sink,
                                byte[] pwd)

Decrypt data read from given source for recipient defined by id and private key, and write it to the sink.

Parameters:

source - The source of the data to be decrypted.

sink - The target sink for decrypted data.

pwd - The password.