com.couchbase.lite.support.security

Class SymmetricKey.Encryptor

java.lang.Object

com.couchbase.lite.support.security.SymmetricKey.Encryptor

Enclosing class:

SymmetricKey

public class SymmetricKey.Encryptor
extends java.lang.Object

An Encryptor class used for incrementally encrypting data. To finalize the encryption, call the encrypt() method will null data.

Constructor Summary

Constructors

Constructor and Description
Encryptor() Create an Encryptor object.

Method Summary

Modifier and Type	Method and Description
byte[]	encrypt(byte[] data) Incrementally encrypt the data.
byte[]	encrypt(byte[] data, int offset, int len) Incrementally encrypt a subset of the data with given offset and length information.

Methods inherited from class java.lang.Object

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

Constructor Detail

Encryptor

public Encryptor()
          throws SymmetricKeyException

Create an Encryptor object. The constructor will create an encrypt-mode cipher with a secure generated IV header.

Throws:

SymmetricKeyException

Method Detail

encrypt

public byte[] encrypt(byte[] data)
               throws SymmetricKeyException

Incrementally encrypt the data. To finalize the encryption, specify null value data.

Parameters:

data - Input data to be encrypted

Returns:

Encrypted data

Throws:

SymmetricKeyException

encrypt

public byte[] encrypt(byte[] data,
                      int offset,
                      int len)
               throws SymmetricKeyException

Incrementally encrypt a subset of the data with given offset and length information. To finalize the encryption, specify null value data.

Parameters:

data - Input data to be encrypted

offset - Start offset of the data to be encrypted

len - Number of bytes from the start offset of the data to be encrypted

Returns:

Encrypted data

Throws:

SymmetricKeyException