public class OAEPParameterSpec extends Object implements AlgorithmParameterSpec
RSAES-OAEP-params ::= SEQUENCE {
hashAlgorithm [0] OAEP-PSSDigestAlgorithms DEFAULT sha1,
maskGenAlgorithm [1] PKCS1MGFAlgorithms DEFAULT mgf1SHA1,
pSourceAlgorithm [2] PKCS1PSourceAlgorithms DEFAULT pSpecifiedEmpty
}
where
OAEP-PSSDigestAlgorithms ALGORITHM-IDENTIFIER ::= {
{ OID id-sha1 PARAMETERS NULL }|
{ OID id-sha256 PARAMETERS NULL }|
{ OID id-sha384 PARAMETERS NULL }|
{ OID id-sha512 PARAMETERS NULL },
... -- Allows for future expansion --
}
PKCS1MGFAlgorithms ALGORITHM-IDENTIFIER ::= {
{ OID id-mgf1 PARAMETERS OAEP-PSSDigestAlgorithms },
... -- Allows for future expansion --
}
PKCS1PSourceAlgorithms ALGORITHM-IDENTIFIER ::= {
{ OID id-pSpecified PARAMETERS OCTET STRING },
... -- Allows for future expansion --
}
Note: the OAEPParameterSpec.DEFAULT uses the following: message digest -- "SHA-1" mask generation function (mgf) -- "MGF1" parameters for mgf -- MGF1ParameterSpec.SHA1 source of encoding input -- PSource.PSpecified.DEFAULT
MGF1ParameterSpec,
PSource| Modifier and Type | Field and Description |
|---|---|
static OAEPParameterSpec |
DEFAULT
The OAEP parameter set with all default values.
|
| Constructor and Description |
|---|
OAEPParameterSpec(String mdName,
String mgfName,
AlgorithmParameterSpec mgfSpec,
PSource pSrc)
Constructs a parameter set for OAEP padding as defined in
the PKCS #1 standard using the specified message digest
algorithm
mdName, mask generation function
algorithm mgfName, parameters for the mask
generation function mgfSpec, and source of
the encoding input P pSrc. |
| Modifier and Type | Method and Description |
|---|---|
String |
getDigestAlgorithm()
Returns the message digest algorithm name.
|
String |
getMGFAlgorithm()
Returns the mask generation function algorithm name.
|
AlgorithmParameterSpec |
getMGFParameters()
Returns the parameters for the mask generation function.
|
PSource |
getPSource()
Returns the source of encoding input P.
|
public static final OAEPParameterSpec DEFAULT
public OAEPParameterSpec(String mdName, String mgfName, AlgorithmParameterSpec mgfSpec, PSource pSrc)
mdName, mask generation function
algorithm mgfName, parameters for the mask
generation function mgfSpec, and source of
the encoding input P pSrc.mdName - the algorithm name for the message digest.mgfName - the algorithm name for the mask generation
function.mgfSpec - the parameters for the mask generation function.
If null is specified, null will be returned by getMGFParameters().pSrc - the source of the encoding input P.NullPointerException - if mdName,
mgfName, or pSrc is null.public String getDigestAlgorithm()
public String getMGFAlgorithm()
public AlgorithmParameterSpec getMGFParameters()
public PSource getPSource()
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