net.i2p.data
Class Signature

java.lang.Object
  extended by net.i2p.data.DataStructureImpl
      extended by net.i2p.data.Signature
All Implemented Interfaces:
DataStructure

public class Signature
extends DataStructureImpl

Defines the signature as defined by the I2P data structure spec. A signature is a 40byte Integer verifying the authenticity of some data using the algorithm defined in the crypto spec.

Author:
jrandom

Field Summary
static byte[] FAKE_SIGNATURE
           
static int SIGNATURE_BYTES
           
 
Constructor Summary
Signature()
           
Signature(byte[] data)
           
 
Method Summary
 boolean equals(java.lang.Object obj)
           
 byte[] getData()
           
 int hashCode()
          the sig has enough randomness in it, use the first 4 bytes for speed
 void readBytes(java.io.InputStream in)
          Load up the current object with data from the given stream.
 void setData(byte[] data)
           
 java.lang.String toString()
           
 void writeBytes(java.io.OutputStream out)
          Write out the data structure to the stream, using the format defined in the I2P data structure specification.
 
Methods inherited from class net.i2p.data.DataStructureImpl
calculateHash, fromBase64, fromByteArray, read, toBase64, toByteArray
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

SIGNATURE_BYTES

public static final int SIGNATURE_BYTES
See Also:
Constant Field Values

FAKE_SIGNATURE

public static final byte[] FAKE_SIGNATURE
Constructor Detail

Signature

public Signature()

Signature

public Signature(byte[] data)
Method Detail

getData

public byte[] getData()

setData

public void setData(byte[] data)

readBytes

public void readBytes(java.io.InputStream in)
               throws DataFormatException,
                      java.io.IOException
Description copied from interface: DataStructure
Load up the current object with data from the given stream. Data loaded this way must match the I2P data structure specification.

Parameters:
in - stream to read from
Throws:
DataFormatException - if the data is improperly formatted
java.io.IOException - if there was a problem reading the stream

writeBytes

public void writeBytes(java.io.OutputStream out)
                throws DataFormatException,
                       java.io.IOException
Description copied from interface: DataStructure
Write out the data structure to the stream, using the format defined in the I2P data structure specification.

Parameters:
out - stream to write to
Throws:
DataFormatException - if the data was incomplete or not yet ready to be written
java.io.IOException - if there was a problem writing to the stream

equals

public boolean equals(java.lang.Object obj)
Overrides:
equals in class java.lang.Object

hashCode

public int hashCode()
the sig has enough randomness in it, use the first 4 bytes for speed

Overrides:
hashCode in class java.lang.Object

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.Object