All Packages Class Hierarchy This Package Previous Next Index
Class au.net.aba.security.AlgorithmParametersSpi
java.lang.Object
|
+----au.net.aba.security.AlgorithmParametersSpi
- public abstract class AlgorithmParametersSpi
- extends Object
This class defines the Service Provider Interface (SPI) for the
AlgorithmParameters class, which is used to manage algorithm
parameters.
All the abstract methods in this class must be implemented by each
cryptographic service provider who wishes to supply parameter
management for a particular algorithm.
- See Also:
- AlgorithmParameters, AlgorithmParameterSpec, DSAParameterSpec
-
ident
-
-
AlgorithmParametersSpi()
-
-
engineGetEncoded()
- Returns the parameters in their primary encoding format.
-
engineGetEncoded(String)
- Returns the parameters encoded in the specified format.
-
engineGetParameterSpec(Class)
- Returns a (transparent) specification of this parameters object.
-
engineInit(AlgorithmParameterSpec)
- Initialises this parameters object using the parameters specified in
paramSpec.
-
engineInit(byte[])
- Imports the specified parameters and decodes them according to the
primary decoding format for parameters.
-
engineInit(byte[], String)
- Imports the parameters from params and decodes them according
to the specified decoding format.
-
engineToString()
- Returns a formatted string describing the parameters.
ident
public static final String ident
AlgorithmParametersSpi
public AlgorithmParametersSpi()
engineInit
protected abstract void engineInit(AlgorithmParameterSpec paramSpec) throws InvalidParameterSpecException
- Initialises this parameters object using the parameters specified in
paramSpec.
- Parameters:
- paramSpec - the parameter specification.
- Throws: InvalidParameterSpecException
- if the given parameter
specification is inappropriate for the initialisation of this
parameter object.
engineInit
protected abstract void engineInit(byte params[]) throws IOException
- Imports the specified parameters and decodes them according to the
primary decoding format for parameters. The primary decoding
format for parameters is ASN.1, if an ASN.1 specification for this
type of parameters exists.
- Parameters:
- params - the encoded parameters.
- Throws: IOException
- on decoding errors
engineInit
protected abstract void engineInit(byte params[],
String format) throws IOException
- Imports the parameters from params and decodes them according
to the specified decoding format. If format is null, the primary
decoding format for parameters is used. The primary decoding
format is ASN.1, if an ASN.1 specification for these parameters
exists.
- Parameters:
- params - the encoded parameters.
- format - the name of the decoding format.
- Throws: IOException
- on decoding errors
engineGetParameterSpec
protected abstract AlgorithmParameterSpec engineGetParameterSpec(Class paramSpec) throws InvalidParameterSpecException
- Returns a (transparent) specification of this parameters object.
paramSpec identifies the specification class in which the
parameters should be returned. It could, for example, be
DSAParameterSpec.class, to indicate that the parameters
should be returned in an instance of the DSAParameterSpec class.
- Parameters:
- paramSpec - the the specification class in which the
parameters should be returned.
- Returns:
- the parameter specification.
- Throws: InvalidParameterSpecException
- if the requested parameter
specification is inappropriate for this parameter object.
engineGetEncoded
protected abstract byte[] engineGetEncoded() throws IOException
- Returns the parameters in their primary encoding format. The
primary encoding format for parameters is ASN.1, if an ASN.1
specification for this type of parameters exists.
- Returns:
- the parameters encoded using the specified encoding scheme.
- Throws: IOException
- on encoding errors.
engineGetEncoded
protected abstract byte[] engineGetEncoded(String format) throws IOException
- Returns the parameters encoded in the specified format. If format
is null, the primary encoding format for parameters is used. The
primary encoding format is ASN.1, if an ASN.1 specification for
these parameters exists.
- Parameters:
- format - the name of the encoding format.
- Returns:
- the parameters encoded using the specified encoding scheme.
- Throws: IOException
- on encoding errors.
engineToString
protected abstract String engineToString()
- Returns a formatted string describing the parameters.
- Returns:
- a formatted string describing the parameters.
All Packages Class Hierarchy This Package Previous Next Index