Package net.i2p.data

Class PrivateKey

java.lang.Object
net.i2p.data.SimpleDataStructure
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 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