Top Description Methods
org.bouncycastle.tls.crypto.impl

public Interface TlsSuiteMac

Known Direct Implementers
org.bouncycastle.tls.crypto.impl.TlsSuiteHMac
Base interface for a generic TLS MAC implementation for use with a bulk cipher.

Method Summary

Modifier and TypeMethod and Description
public byte[]

Returns:

A new byte array containing the MAC value.
calculateMac(long
The sequence number of the record.
seqNo, short
The content type of the message.
type, byte[] connectionID, byte[]
A byte array containing the message.
message, int
The number of bytes to skip, before the message starts.
offset, int
The length of the message.
length)

Calculate the MAC for some given data.

public byte[]

Returns:

A new byte array containing the MAC value.
calculateMacConstantTime(long
The sequence number of the record.
seqNo, short
The content type of the message.
type, byte[] connectionID, byte[]
A byte array containing the message.
message, int
The number of bytes to skip, before the message starts.
offset, int
The length of the message.
length, int
The expected length of the full message.
expectedLength, byte[]
Random data for padding out the MAC calculation if required.
randomData)

Constant time calculation of the MAC for some given data with a given expected length.

public int

Returns:

The output length of this MAC.
getSize()

Return the output length (in bytes) of this MAC.

Method Detail

calculateMacback to summary
public byte[] calculateMac(long seqNo, short type, byte[] connectionID, byte[] message, int offset, int length)

Calculate the MAC for some given data.

Parameters
seqNo:long

The sequence number of the record.

type:short

The content type of the message.

message:byte[]

A byte array containing the message.

offset:int

The number of bytes to skip, before the message starts.

length:int

The length of the message.

Returns:byte[]

A new byte array containing the MAC value.

calculateMacConstantTimeback to summary
public byte[] calculateMacConstantTime(long seqNo, short type, byte[] connectionID, byte[] message, int offset, int length, int expectedLength, byte[] randomData)

Constant time calculation of the MAC for some given data with a given expected length.

Parameters
seqNo:long

The sequence number of the record.

type:short

The content type of the message.

message:byte[]

A byte array containing the message.

offset:int

The number of bytes to skip, before the message starts.

length:int

The length of the message.

expectedLength:int

The expected length of the full message.

randomData:byte[]

Random data for padding out the MAC calculation if required.

Returns:byte[]

A new byte array containing the MAC value.

getSizeback to summary
public int getSize()

Return the output length (in bytes) of this MAC.

Returns:int

The output length of this MAC.