| java.lang.Object
 java.security.AlgorithmParametersSpi
All known Subclasses: sun.security.provider.DSAParameters,
| AlgorithmParametersSpi | | abstract public class AlgorithmParametersSpi (Code) | | 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.
author:
Jan Luehe
version:
1.8, 02/02/00
See Also: AlgorithmParameters
See Also: java.security.spec.AlgorithmParameterSpec
See Also: java.security.spec.DSAParameterSpec
since:
1.2 |
| Method Summary | |
| abstract protected byte[] | engineGetEncoded()
Returns the parameters in their primary encoding format. | | abstract protected byte[] | engineGetEncoded(String format)
Returns the parameters encoded in the specified format.
If format is null, the
primary encoding format for parameters is used. | | abstract protected AlgorithmParameterSpec | engineGetParameterSpec(Class paramSpec)
Returns a (transparent) specification of this parameters
object.
paramSpec identifies the specification class in which
the parameters should be returned. | | abstract protected void | engineInit(AlgorithmParameterSpec paramSpec)
Initializes this parameters object using the parameters
specified in paramSpec. | | abstract protected void | engineInit(byte[] params)
Imports the specified parameters and decodes them
according to the primary decoding format for parameters. | | abstract protected void | engineInit(byte[] params, String format)
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. | | abstract protected String | engineToString()
Returns a formatted string describing the parameters. |
| engineGetEncoded | | abstract protected byte[] engineGetEncoded() throws IOException(Code) | | 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.
the parameters encoded using the specified encoding scheme.
exception:
IOException - on encoding errors. |
| engineGetEncoded | | abstract protected byte[] engineGetEncoded(String format) throws IOException(Code) | | 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. the parameters encoded using the specified encoding scheme.
exception:
IOException - on encoding errors. |
| engineGetParameterSpec | | abstract protected AlgorithmParameterSpec engineGetParameterSpec(Class paramSpec) throws InvalidParameterSpecException(Code) | | 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. the parameter specification.
exception:
InvalidParameterSpecException - if the requested parameterspecification is inappropriate for this parameter object. |
| engineInit | | abstract protected void engineInit(byte[] params) throws IOException(Code) | | 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.
exception:
IOException - on decoding errors |
| engineInit | | abstract protected void engineInit(byte[] params, String format) throws IOException(Code) | | 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.
Parameters:
format - the name of the decoding format.
exception:
IOException - on decoding errors |
| engineToString | | abstract protected String engineToString()(Code) | | Returns a formatted string describing the parameters.
a formatted string describing the parameters. |
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