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java.lang.Object | +--gnu.crypto.sig.dss.DSSKeyPairGenerator
A key-pair generator for asymetric keys to use in conjunction with the DSS (Digital Signature Standard).
References:
Digital Signature
Standard (DSS), Federal Information Processing Standards Publication 186.
National Institute of Standards and Technology.
Field Summary | |
static java.lang.String |
DSS_PARAMETERS
Property name of an optional DSAParameterSpec
instance to use for this generator's p , q , and
g values. |
static java.security.spec.DSAParameterSpec |
KEY_PARAMS_1024
|
static java.security.spec.DSAParameterSpec |
KEY_PARAMS_512
|
static java.security.spec.DSAParameterSpec |
KEY_PARAMS_768
|
static java.lang.String |
MODULUS_LENGTH
Property name of the length (Integer) of the modulus (p) of a DSS key. |
static java.lang.String |
SOURCE_OF_RANDOMNESS
Property name of an optional SecureRandom instance
to use. |
static java.lang.String |
USE_DEFAULTS
Property name of the Boolean indicating wether or not to use defaults. |
Constructor Summary | |
DSSKeyPairGenerator()
|
Method Summary | |
java.security.KeyPair |
generate()
Generates a new keypair based on the attributes used to configure the instance. |
java.lang.String |
name()
Returns the canonical name of this keypair generator. |
void |
setup(java.util.Map attributes)
Configures this instance. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
public static final java.lang.String MODULUS_LENGTH
public static final java.lang.String USE_DEFAULTS
public static final java.lang.String SOURCE_OF_RANDOMNESS
SecureRandom
instance
to use. The default is to use a classloader singleton from
PRNG
.
public static final java.lang.String DSS_PARAMETERS
DSAParameterSpec
instance to use for this generator's p
, q
, and
g
values. The default is to generate these values or use
pre-computed ones, depending on the value of the USE_DEFAULTS
attribute.
public static final java.security.spec.DSAParameterSpec KEY_PARAMS_512
public static final java.security.spec.DSAParameterSpec KEY_PARAMS_768
public static final java.security.spec.DSAParameterSpec KEY_PARAMS_1024
Constructor Detail |
public DSSKeyPairGenerator()
Method Detail |
public java.lang.String name()
IKeyPairGenerator
name
in interface IKeyPairGenerator
public void setup(java.util.Map attributes)
setup
in interface IKeyPairGenerator
attributes
- the map of name/value pairs to use.
java.lang.IllegalArgumentException
- if the designated MODULUS_LENGTH
value is not greater than 512, less than 1024 and not of the form
512 + 64j
.public java.security.KeyPair generate()
IKeyPairGenerator
generate
in interface IKeyPairGenerator
|
For the latest news and information visit The GNU Crypto project |
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