de.flexiprovider.core.rbrsa
Class RbRSAKeyGenParameterSpec

java.lang.Object
  |
  +--de.flexiprovider.core.rbrsa.RbRSAKeyGenParameterSpec

All Implemented Interfaces:

AlgorithmParameterSpec, java.security.spec.AlgorithmParameterSpec

public class RbRSAKeyGenParameterSpec

extends java.lang.Object

implements AlgorithmParameterSpec

This class specifies parameters used by the RbRSAKeyPairGenerator.

Author:

Paul Nguentcheu, Martin Döring

Field Summary

static int	DEFAULT_KEY_SIZE The default bit length of the modulus n (1024 bits)
static int	DEFAULT_PRIVATE_EXPONENT_SIZE The default bit length of the private exponent d modulo p and modulo q (160 bits)

Constructor Summary

RbRSAKeyGenParameterSpec()
Construct the default rebalanced RSA key generation parameters.

RbRSAKeyGenParameterSpec(int keySize)
Construct new rebalanced RSA key generation parameters from the given key size.

RbRSAKeyGenParameterSpec(int keySize, int s)
Construct new rebalanced RSA key generation parameters from the given key size and bit length of the prime p modulo p and modulo q.

Method Summary

int	getKeySize()
int	getPrivExpSize()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_KEY_SIZE

public static final int DEFAULT_KEY_SIZE

The default bit length of the modulus n (1024 bits)

DEFAULT_PRIVATE_EXPONENT_SIZE

public static final int DEFAULT_PRIVATE_EXPONENT_SIZE

The default bit length of the private exponent d modulo p and modulo q (160 bits)

Constructor Detail

RbRSAKeyGenParameterSpec

public RbRSAKeyGenParameterSpec()

Construct the default rebalanced RSA key generation parameters. The key size is chosen as DEFAULT_KEY_SIZE. The bit length of the prime p modulo p and modulo q is chosen as DEFAULT_PRIVATE_EXPONENT_SIZE.

RbRSAKeyGenParameterSpec

public RbRSAKeyGenParameterSpec(int keySize)

Construct new rebalanced RSA key generation parameters from the given key size. The bit length of the prime p modulo p and modulo q is chosen as DEFAULT_PRIVATE_EXPONENT_SIZE. If the key size is invalid, choose the DEFAULT_KEY_SIZE.

Parameters:

keySize - the bit length of the modulus n (>= 512)

RbRSAKeyGenParameterSpec

public RbRSAKeyGenParameterSpec(int keySize,
                                int s)

Construct new rebalanced RSA key generation parameters from the given key size and bit length of the prime p modulo p and modulo q. If the key size is invalid, choose the DEFAULT_KEY_SIZE. If the bit length of the prime p is invalid, choose the DEFAULT_PRIVATE_EXPONENT_SIZE.

Parameters:

keySize - the bit length of the modulus n (>= 512)

s - the bit length of the prime p modulo p and modulo q (>= 2)

Method Detail

getKeySize

public int getKeySize()

Returns:

the bit length of the modulus n

getPrivExpSize

public int getPrivExpSize()

Returns:

the bit length of the private exponent d modulo p and modulo q