net.i2p.crypto
Class SHA1Hash

java.lang.Object
  extended by net.i2p.data.DataStructureImpl
      extended by net.i2p.crypto.SHA1Hash
All Implemented Interfaces:
DataStructure

public class SHA1Hash
extends DataStructureImpl

Because DSAEngine was abusing Hash for 20-byte hashes

Since:
0.8.1
Author:
zzz

Field Summary
static int HASH_LENGTH
           
 
Constructor Summary
SHA1Hash(byte[] data)
           
 
Method Summary
 boolean equals(Object obj)
           
 byte[] getData()
           
 int hashCode()
          a Hash is a hash, so just use the first 4 bytes for speed
 void readBytes(InputStream in)
          Load up the current object with data from the given stream.
 void setData(byte[] data)
           
 void writeBytes(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, toString, wait, wait, wait
 

Field Detail

HASH_LENGTH

public static final int HASH_LENGTH
See Also:
Constant Field Values
Constructor Detail

SHA1Hash

public SHA1Hash(byte[] data)
Throws:
IllegalArgumentException - if data is not 20 bytes (null is ok)
Method Detail

getData

public byte[] getData()

setData

public void setData(byte[] data)
Throws:
IllegalArgumentException - if data is not 20 bytes (null is ok)

readBytes

public void readBytes(InputStream in)
               throws DataFormatException,
                      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:
IOException - always
DataFormatException - if the data is improperly formatted

writeBytes

public void writeBytes(OutputStream out)
                throws DataFormatException,
                       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:
IOException - always
DataFormatException - if the data was incomplete or not yet ready to be written

equals

public boolean equals(Object obj)
Overrides:
equals in class Object

hashCode

public int hashCode()
a Hash is a hash, so just use the first 4 bytes for speed

Overrides:
hashCode in class Object