com.virgilsecurity.crypto

Class VirgilStreamCipher

java.lang.Object

com.virgilsecurity.crypto.VirgilCipherBase

com.virgilsecurity.crypto.VirgilStreamCipher

All Implemented Interfaces:

AutoCloseable

public class VirgilStreamCipher
extends VirgilCipherBase
implements AutoCloseable

This class provides high-level interface to encrypt / decrypt streaming data using Virgil Security keys.

Author:

Andrii Iakovenko

Field Summary

Fields inherited from class com.virgilsecurity.crypto.VirgilCipherBase

swigCMemOwn

Constructor Summary

Constructors

Modifier	Constructor and Description
	VirgilStreamCipher() Create a new instance of VirgilStreamCipher
protected	VirgilStreamCipher(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 password, 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.
protected void	finalize()
protected static long	getCPtr(VirgilStreamCipher 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

Constructor Detail

VirgilStreamCipher

protected VirgilStreamCipher(long cPtr,
                             boolean cMemoryOwn)

VirgilStreamCipher

public VirgilStreamCipher()

Create a new instance of VirgilStreamCipher

Method Detail

getCPtr

protected static long getCPtr(VirgilStreamCipher 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)

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

Store content info to use it for decription process, if embedContentInfo parameter is false.

Parameters:

source - source of the data to be encrypted.

sink - 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.

Store content info to use it for decription process, if embedContentInfo parameter is false.

Parameters:

source - source of the data to be encrypted.

sink - 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.

Content info MUST be defined, if it was not embedded to the encrypted data.

Parameters:

source - source of the data to be decrypted.

sink - target sink for decrypted data.

recipientId - the recipient identifier.

privateKey - the 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.

Content info MUST be defined, if it was not embedded to the encrypted data.

Parameters:

source - source of the data to be decrypted.

sink - target sink for decrypted data.

recipientId - the recipient identifier.

privateKey - the private key.

decryptWithPassword

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

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

Content info MUST be defined, if it was not embedded to the encrypted data.

Parameters:

source - source of the data to be decrypted.

sink - target sink for decrypted data.

pwd - the password.