Overview Package Class Use Source Tree Index Deprecated About
Prev Class | Next ClassFrames | No Frames
Summary: Nested | Field | Method | ConstrDetail: Nested | Field | Method | Constr

gnu.java.security.key.rsa

Class RSAKeyPairGenerator

Implemented Interfaces:
IKeyPairGenerator
public class RSAKeyPairGenerator
extends Object
implements IKeyPairGenerator
A key-pair generator for asymetric keys to use in conjunction with the RSA scheme.

Reference:

  1. RSA-PSS Signature Scheme with Appendix, part B. Primitive specification and supporting documentation. Jakob Jonsson and Burt Kaliski.
  2. Handbook of Applied Cryptography, Alfred J. Menezes, Paul C. van Oorschot and Scott A. Vanstone. Section 11.3 RSA and related signature schemes.

Field Summary

static String
MODULUS_LENGTH
Property name of the length (Integer) of the modulus of an RSA key.
static String
PREFERRED_ENCODING_FORMAT
Property name of the preferred encoding format to use when externalizing generated instance of key-pairs from this generator.
static String
RSA_PARAMETERS
Property name of an optional RSAKeyGenParameterSpec instance to use for this generator's n, and e values.
static String
SOURCE_OF_RANDOMNESS
Property name of an optional SecureRandom instance to use.

Method Summary

KeyPair
generate()
The algorithm used here is described in nessie-pss-B.pdf document which is part of the RSA-PSS submission to NESSIE.
String
name()
Returns the canonical name of this keypair generator.
void
setup(Map<K,V> attributes)
Configures this instance.

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

MODULUS_LENGTH

public static final String MODULUS_LENGTH
Property name of the length (Integer) of the modulus of an RSA key.
Field Value:
"gnu.crypto.rsa.L"

PREFERRED_ENCODING_FORMAT

public static final String PREFERRED_ENCODING_FORMAT
Property name of the preferred encoding format to use when externalizing generated instance of key-pairs from this generator. The property is taken to be an Integer that encapsulates an encoding format identifier.
Field Value:
"gnu.crypto.rsa.encoding"

RSA_PARAMETERS

public static final String RSA_PARAMETERS
Property name of an optional RSAKeyGenParameterSpec instance to use for this generator's n, and e values. The default is to generate n and use a fixed value for e (Fermat's F4 number).
Field Value:
"gnu.crypto.rsa.params"

SOURCE_OF_RANDOMNESS

public static final String SOURCE_OF_RANDOMNESS
Property name of an optional SecureRandom instance to use. The default is to use a classloader singleton from PRNG.
Field Value:
"gnu.crypto.rsa.prng"

Method Details

generate

public KeyPair generate()
The algorithm used here is described in nessie-pss-B.pdf document which is part of the RSA-PSS submission to NESSIE.
Specified by:
generate in interface IKeyPairGenerator
Returns:
an RSA keypair.

name

public String name()
Returns the canonical name of this keypair generator.
Specified by:
name in interface IKeyPairGenerator
Returns:
the canonical name of this instance.

setup

public void setup(Map<K,V> attributes)
Configures this instance.
Specified by:
setup in interface IKeyPairGenerator
Parameters:
attributes - the map of name/value pairs to use.
Throws:
IllegalArgumentException - if the designated MODULUS_LENGTH value is less than 1024.
RSAKeyPairGenerator.java -- Copyright 2001, 2002, 2003, 2006, 2010 Free Software Foundation, Inc. This file is a part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.

Overview Package Class Use Source Tree Index Deprecated About