: Class KeyGen

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Class KeyGen

java.lang.Object
  |
  +--KeyGen

public class KeyGen
extends java.lang.Object

class KeyGen generates keys for RSA. The value of n must be large enough so that it is greater than the maximum size of the integers that the user plans to encode. We will be encoding block sizes of 11 bytes

Constructor Summary
`KeyGen()` Constructs a new KeyGen Postcondition A KeyGen has been created containing the values necessary to encode and decode.
`KeyGen(java.util.Random r1, java.util.Random r2)` Constructs a new KeyGen

Method Summary
`java.math.BigInteger`	`getd()` Accessor methods for d, e, n
`java.math.BigInteger`	`gete()`
`java.math.BigInteger`	`getn()`
`static void`	`main(java.lang.String[] args)` Tests the KeyGen class

Methods inherited from class java.lang.Object

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

Constructor Detail

KeyGen

public KeyGen(java.util.Random r1,
              java.util.Random r2)

Constructs a new KeyGen

Parameters:: r1, - r2 These contain two random numbers to be used in generating the exponent and modulus. See BigInteger documentation.
Postcondition: A KeyGen has been created containing the values necessary to encode and decode.
Throws:: OutOfMemoryError - Indicates that there is insufficient memory for a new KeyGen.

KeyGen

public KeyGen()

Constructs a new KeyGen

Postcondition

A KeyGen has been created containing the values necessary to encode and decode.

Throws:: OutOfMemoryError - Indicates that there is insufficient memory for a new KeyGen.

Method Detail

getd

public java.math.BigInteger getd()

Accessor methods for d, e, n

Parameters:: none -
Returns:: Returns the decoding exponent, the encoding exponent, or the modulus

gete

public java.math.BigInteger gete()

getn

public java.math.BigInteger getn()

main

public static void main(java.lang.String[] args)

Tests the KeyGen class

Parameters:: args[] - This parameter will be left empty
Postcondition: The encoding and decoding exponents and the modulus will be printed.
Throws:: OutOfMemoryError - Indicates that there is insufficient memory for a new KeyGen,