com.virgilsecurity.sdk.crypto

Class Cipher

java.lang.Object

com.virgilsecurity.sdk.crypto.CipherBase

com.virgilsecurity.sdk.crypto.Cipher

All Implemented Interfaces:

AutoCloseable

public class Cipher
extends CipherBase

This class provides the functionality of a cryptographic cipher for encryption and decryption.

Author:

Andrii Iakovenko

Field Summary

Fields inherited from class com.virgilsecurity.sdk.crypto.CipherBase

cipher

Constructor Summary

Constructors

Constructor and Description
Cipher() Create a new instance of Cipher

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	decryptWithKey(byte[] encryptedData, Recipient recipient, PrivateKey privateKey) Decrypt data with private key.
byte[]	decryptWithKey(byte[] encryptedData, Recipient recipient, PrivateKey privateKey, Password privateKeyPassword) Decrypt data with private key.
byte[]	decryptWithPassword(byte[] encryptedData, Password password) Decrypt data with password.
byte[]	decryptWithPassword(byte[] encryptedData, String password) Decrypt data with password.
byte[]	encrypt(byte[] data) Encrypt data.
byte[]	encrypt(byte[] data, boolean embedContentInfo) Encrypt data.

Methods inherited from class com.virgilsecurity.sdk.crypto.CipherBase

addKeyRecipient, addKeyRecipient, addPasswordRecipient, addPasswordRecipient, close, customParams, defineContentInfoSize, getContentInfo, removeAllRecipients, removeKeyRecipient, removePasswordRecipient, setContentInfo

Methods inherited from class java.lang.Object

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

Constructor Detail

Cipher

public Cipher()

Create a new instance of Cipher

Method Detail

encrypt

public byte[] encrypt(byte[] data,
             boolean embedContentInfo)

Encrypt data.

Parameters:

data - the data to be encrypted.

embedContentInfo - true if content information should be embedded into data.

Returns:

the encrypted data.

encrypt

public byte[] encrypt(byte[] data)

Encrypt data.

Parameters:

data - the data to be encrypted.

Returns:

the encrypted data.

decryptWithKey

public byte[] decryptWithKey(byte[] encryptedData,
                    Recipient recipient,
                    PrivateKey privateKey,
                    Password privateKeyPassword)

Decrypt data with private key.

Parameters:

encryptedData - the data for encryption.

recipient - the key recipient.

privateKey - the private key of recipient.

privateKeyPassword - the password of private key.

Returns:

the decrypted data.

decryptWithKey

public byte[] decryptWithKey(byte[] encryptedData,
                    Recipient recipient,
                    PrivateKey privateKey)

Decrypt data with private key.

Parameters:

encryptedData - the data for encryption.

recipient - the key recipient.

privateKey - the private key of recipient.

Returns:

the decrypted data.

decryptWithPassword

public byte[] decryptWithPassword(byte[] encryptedData,
                         Password password)

Decrypt data with password.

Parameters:

encryptedData - the data for encryption.

password - the password.

Returns:

the decrypted data.

decryptWithPassword

public byte[] decryptWithPassword(byte[] encryptedData,
                         String password)

Decrypt data with password.

Parameters:

encryptedData - the data for encryption.

password - the password.

Returns:

the decrypted data.