Package anbxj

Class Crypto_SealedObject

java.lang.Object

anbxj.Crypto_SealedObject

All Implemented Interfaces:

Serializable

public class Crypto_SealedObject
extends Object
implements Serializable

Universal sealed (encrypted) container for both symmetric and hybrid encryption.

Internally the encrypted key, encrypted message and cipher scheme are stored as raw byte arrays - a format suitable for both Java serialisation and Protocol Buffers.

See Also:

• AnBx_WireFormats.SealedMessage
• Serialized Form

Constructor Summary

Constructors

Constructor	Description
Crypto_SealedObject(byte[] encryptedKey, byte[] encryptedMessage, String cipherScheme)	Constructs a new Crypto_SealedObject from raw fields.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
static Crypto_SealedObject	fromProtobufSealed(AnBx_WireFormats.SealedMessage msg)	Reconstructs a Crypto_SealedObject from a Protobuf AnBx_WireFormats.SealedMessage.
String	getCipherScheme()	Returns the cipher scheme string.
byte[]	getEncryptedKey()	Returns a copy of the encrypted key bytes, or null if no key was transported.
byte[]	getEncryptedMessage()	Returns a copy of the encrypted message bytes.
int	hashCode()
byte[]	toByteArray()	Produces a deterministic byte array that can be parsed by AnBx_WireFormats.SealedMessage.parseFrom(byte[]).
static AnBx_WireFormats.SealedMessage	toProtobufSealed(Crypto_SealedObject obj)	Converts a Crypto_SealedObject to its Protobuf AnBx_WireFormats.SealedMessage representation.
AnBx_WireFormats.SealedMessage	toSealedMessage()	Converts this container into a Protobuf-compatible AnBx_WireFormats.SealedMessage.
String	toString()

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

Crypto_SealedObject

public Crypto_SealedObject(byte[] encryptedKey,
 byte[] encryptedMessage,
 String cipherScheme)

Constructs a new Crypto_SealedObject from raw fields.

Parameters:

encryptedKey - the encrypted symmetric key (may be null if no key transport is used)

encryptedMessage - the encrypted message payload (must not be null)

cipherScheme - the cipher scheme used (e.g. "AES/GCM/NoPadding")

Throws:

NullPointerException - if encryptedMessage or cipherScheme is null

Method Details

getEncryptedKey

public byte[] getEncryptedKey()

Returns a copy of the encrypted key bytes, or null if no key was transported.

Returns:

the encrypted key, or null

getEncryptedMessage

public byte[] getEncryptedMessage()

Returns a copy of the encrypted message bytes.

Returns:

the encrypted message (never null)

getCipherScheme

public String getCipherScheme()

Returns the cipher scheme string.

Returns:

the cipher scheme (never null)

toByteArray

public byte[] toByteArray()

Produces a deterministic byte array that can be parsed by AnBx_WireFormats.SealedMessage.parseFrom(byte[]).

The binary layout is identical to AnBx_WireFormats.SealedMessage.toByteArray().

Returns:

the serialised bytes (never null)

toSealedMessage

public AnBx_WireFormats.SealedMessage toSealedMessage()

Converts this container into a Protobuf-compatible AnBx_WireFormats.SealedMessage.

Returns:

a new SealedMessage (never null)

toProtobufSealed

public static AnBx_WireFormats.SealedMessage toProtobufSealed(Crypto_SealedObject obj)

Converts a Crypto_SealedObject to its Protobuf AnBx_WireFormats.SealedMessage representation.

Parameters:

obj - the sealed object to convert

Returns:

the corresponding SealedMessage

fromProtobufSealed

public static Crypto_SealedObject fromProtobufSealed(AnBx_WireFormats.SealedMessage msg)

Reconstructs a Crypto_SealedObject from a Protobuf AnBx_WireFormats.SealedMessage.

Parameters:

msg - the Protobuf message

Returns:

the reconstructed container

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object