net.i2p.router.crypto.ratchet

Class RatchetPayload

java.lang.Object

net.i2p.router.crypto.ratchet.RatchetPayload

class RatchetPayload
extends Object

Ratchet payload generation and parsing

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RatchetPayload.AckBlock Acknowledgment block for ratchet payload.
static class	RatchetPayload.AckRequestBlock Acknowledgment request block for ratchet payload.
static class	RatchetPayload.Block Base class for blocks to be transmitted.
static class	RatchetPayload.DateTimeBlock Timestamp block for ratchet payload synchronization and timing
static class	RatchetPayload.GarlicBlock Garlic clove block for embedding I2NP messages in ratchet payload
static class	RatchetPayload.NextKeyBlock Next session key block for ratchet key exchange operations
static class	RatchetPayload.OptionsBlock Options block for ratchet protocol configuration and negotiation
static class	RatchetPayload.PaddingBlock Padding block for ratchet payload size alignment and obfuscation
static interface	RatchetPayload.PayloadCallback For all callbacks, recommend throwing exceptions only from the handshake.
static class	RatchetPayload.PNBlock Packet number block for ratchet payload.
static class	RatchetPayload.TerminationBlock Termination block for ratchet session closure with reason codes

Field Summary

Fields

Modifier and Type	Field and Description
static int	BLOCK_HEADER_SIZE

Constructor Summary

Constructors

Constructor and Description
RatchetPayload()

Method Summary

Modifier and Type	Method and Description
static int	processPayload(I2PAppContext ctx, RatchetPayload.PayloadCallback cb, byte[] payload, int off, int length, boolean isHandshake) Ratchet payload generation and parsing utilities supporting datetime, options, garlic, next key, acknowledgment, and padding blocks for ECIES+AEAD messages
static int	writePayload(byte[] payload, int off, List<RatchetPayload.Block> blocks)

Methods inherited from class java.lang.Object

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

Field Detail

BLOCK_HEADER_SIZE

public static final int BLOCK_HEADER_SIZE

See Also:

Constant Field Values

Constructor Detail

RatchetPayload

RatchetPayload()

Method Detail

processPayload

public static int processPayload(I2PAppContext ctx,
                                 RatchetPayload.PayloadCallback cb,
                                 byte[] payload,
                                 int off,
                                 int length,
                                 boolean isHandshake)
                          throws IOException,
                                 DataFormatException,
                                 I2NPMessageException

Ratchet payload generation and parsing utilities supporting datetime, options, garlic, next key, acknowledgment, and padding blocks for ECIES+AEAD messages

Throws:

IOException

DataFormatException

I2NPMessageException

writePayload

public static int writePayload(byte[] payload,
                               int off,
                               List<RatchetPayload.Block> blocks)

Parameters:

payload - writes to it starting at off

Returns:

the new offset