Package marauroa.common.crypto

Class RSAKey

java.lang.Object

marauroa.common.crypto.RSAPublicKey

marauroa.common.crypto.RSAKey

public class RSAKey
extends RSAPublicKey

Implementation of a private RSA Key

Author:

quisar

Field Summary

Fields inherited from class marauroa.common.crypto.RSAPublicKey

big0, big1, big2, big6, e, n

Constructor Summary

Constructors

Constructor	Description
RSAKey(BigInteger n, BigInteger d, BigInteger e)	creates a new RSAKey object

Method Summary

Modifier and Type	Method	Description
BigInteger	decode(BigInteger message)	decodes a BigInteger
byte[]	decodeByteArray(byte[] message)	decodes a byte array
static RSAKey	generateKey(int nbBits)	generates a key pair
BigInteger	getD()	gets d
RSAPublicKey	getPublicKey()	gets the public key
void	print(PrintStream out)	prints the key to a stream
void	print(PrintWriter out)	prints the key to a writer
BigInteger	sign(BigInteger message)	signs a message

Methods inherited from class marauroa.common.crypto.RSAPublicKey

encode, encodeByteArray, getE, getN, getString, getValue, verifySignature

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

RSAKey

public RSAKey(BigInteger n,
 BigInteger d,
 BigInteger e)

creates a new RSAKey object

Parameters:

n - n

d - d

e - e

Method Details

print

public void print(PrintWriter out)

Description copied from class: RSAPublicKey

prints the key to a writer

Overrides:

print in class RSAPublicKey

Parameters:

out - writer to print to

print

public void print(PrintStream out)

Description copied from class: RSAPublicKey

prints the key to a stream

Overrides:

print in class RSAPublicKey

Parameters:

out - stream to print to

generateKey

public static RSAKey generateKey(int nbBits)

generates a key pair

Parameters:

nbBits - size of the key

Returns:

RSAKey

decode

public BigInteger decode(BigInteger message)

decodes a BigInteger

Parameters:

message - BigInteger

Returns:

decoded BigInteger

decodeByteArray

public byte[] decodeByteArray(byte[] message)

decodes a byte array

Parameters:

message - array to decode

Returns:

decoded array

sign

public BigInteger sign(BigInteger message)

signs a message

Parameters:

message - message to sign

Returns:

signed message

getPublicKey

public RSAPublicKey getPublicKey()

gets the public key

Returns:

public key

getD

public BigInteger getD()

gets d

Returns:

d