net.i2p.data.PrivateKey

All Implemented Interfaces:: Destroyable, DataStructure

public class PrivateKey
extends SimpleDataStructure
implements Destroyable

Defines the PrivateKey as defined by the I2P data structure spec. A private key is 256byte Integer. The private key represents only the exponent, not the primes, which are constant and defined in the crypto spec. As of release 0.9.38, keys of arbitrary length and type are supported. See EncType.

Author:: jrandom

Field Summary

Fields

Modifier and Type Field Description

static int KEYSIZE_BYTES

Fields inherited from class net.i2p.data.SimpleDataStructure
_data

Constructor Summary

Constructors
Constructor	Description
`PrivateKey()`
`PrivateKey(byte[] data)`
`PrivateKey(String base64Data)`	constructs from base64
`PrivateKey(EncType type)`
`PrivateKey(EncType type, byte[] data)`
`PrivateKey(EncType type, byte[] data, PublicKey pubKey)`

Method Summary

Modifier and Type	Method	Description
`void`	`destroy()`	javax.security.auth.Destroyable interface
`boolean`	`equals(Object obj)`	Warning - this returns true for two different classes with the same size and same data, e.g.
`EncType`	`getType()`
`int`	`hashCode()`	We assume the data has enough randomness in it, so use the last 4 bytes for speed.
`boolean`	`isDestroyed()`	javax.security.auth.Destroyable interface
`int`	`length()`	The legal length of the byte array in this data structure
`PublicKey`	`toPublic()`	Derives a new PublicKey object derived from the secret contents of this PrivateKey.
`String`	`toString()`

Methods inherited from class net.i2p.data.SimpleDataStructure

calculateHash, fromBase64, fromByteArray, getData, read, readBytes, setData, toBase64, toByteArray, writeBytes

Methods inherited from class java.lang.Object

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

Field Details
- KEYSIZE_BYTES
  
  public static final int KEYSIZE_BYTES
Constructor Details
- PrivateKey
  
  public PrivateKey()
- PrivateKey
  
  public PrivateKey(EncType type)
  
  Parameters:
  
  type - non-null
  
  Since:
  
  0.9.38
- PrivateKey
  
  public PrivateKey(byte[] data)
- PrivateKey
  
  public PrivateKey(EncType type, byte[] data)
  
  Parameters:
  
  type - non-null
  
  data - must be non-null
  
  Since:
  
  0.9.38
- PrivateKey
  
  public PrivateKey(EncType type, byte[] data, PublicKey pubKey)
  
  Parameters:
  
  type - non-null
  
  data - must be non-null
  
  pubKey - corresponding pubKey to be cached
  
  Since:
  
  0.9.44
- PrivateKey
  
  public PrivateKey(String base64Data) throws DataFormatException
  
  constructs from base64
  
  Parameters:
  
  base64Data - a string of base64 data (the output of .toBase64() called on a prior instance of PrivateKey
  
  Throws:
  
  DataFormatException
Method Details
- length
  
  public int length()
  
  Description copied from class: SimpleDataStructure
  
  The legal length of the byte array in this data structure
  
  Specified by:
  
  length in class SimpleDataStructure
- getType
  
  public EncType getType()
  
  Returns:
  
  non-null
  
  Since:
  
  0.9.38
- toPublic
  
  public PublicKey toPublic()
  
  Derives a new PublicKey object derived from the secret contents of this PrivateKey. As of 0.9.44, the PublicKey is cached.
  
  Returns:
  
  a PublicKey object
  
  Throws:
  
  IllegalArgumentException - on bad key
- destroy
  
  public void destroy()
  
  javax.security.auth.Destroyable interface
  
  Specified by:
  
  destroy in interface Destroyable
  
  Since:
  
  0.9.40
- isDestroyed
  
  public boolean isDestroyed()
  
  javax.security.auth.Destroyable interface
  
  Specified by:
  
  isDestroyed in interface Destroyable
  
  Since:
  
  0.9.40
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class SimpleDataStructure
  
  Since:
  
  0.9.38
- hashCode
  
  public int hashCode()
  
  We assume the data has enough randomness in it, so use the last 4 bytes for speed. Overridden since we use short exponents, so the first 227 bytes are all zero.
  
  Overrides:
  
  hashCode in class SimpleDataStructure
- equals
  
  public boolean equals(Object obj)
  
  Description copied from class: SimpleDataStructure
  
  Warning - this returns true for two different classes with the same size and same data, e.g. SessionKey and SessionTag, but you wouldn't put them in the same Set, would you?
  
  Overrides:
  
  equals in class SimpleDataStructure

Class PrivateKey

Field Summary

Fields inherited from class net.i2p.data.SimpleDataStructure

Constructor Summary

Method Summary

Methods inherited from class net.i2p.data.SimpleDataStructure

Methods inherited from class java.lang.Object

Field Details

Constructor Details

Method Details