public
class
MGF1ParameterSpec
extends Object
implements
AlgorithmParameterSpec
java.lang.Object | |
↳ | java.security.spec.MGF1ParameterSpec |
This class specifies the set of parameters used with mask generation function MGF1 in OAEP Padding and RSA-PSS signature scheme, as defined in the PKCS #1 v2.1 standard.
Its ASN.1 definition in PKCS#1 standard is described below:
MGF1Parameters ::= OAEP-PSSDigestAlgorthmswhere
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 -- }
See also:
Fields | |
---|---|
public
static
final
MGF1ParameterSpec |
SHA1
The MGF1ParameterSpec which uses "SHA-1" message digest. |
public
static
final
MGF1ParameterSpec |
SHA256
The MGF1ParameterSpec which uses "SHA-256" message digest. |
public
static
final
MGF1ParameterSpec |
SHA384
The MGF1ParameterSpec which uses "SHA-384" message digest. |
public
static
final
MGF1ParameterSpec |
SHA512
The MGF1ParameterSpec which uses SHA-512 message digest. |
Public constructors | |
---|---|
MGF1ParameterSpec(String mdName)
Constructs a parameter set for mask generation function MGF1 as defined in the PKCS #1 standard. |
Public methods | |
---|---|
String
|
getDigestAlgorithm()
Returns the algorithm name of the message digest used by the mask generation function. |
Inherited methods | |
---|---|
From
class
java.lang.Object
|
MGF1ParameterSpec SHA1
The MGF1ParameterSpec which uses "SHA-1" message digest.
MGF1ParameterSpec SHA256
The MGF1ParameterSpec which uses "SHA-256" message digest.
MGF1ParameterSpec SHA384
The MGF1ParameterSpec which uses "SHA-384" message digest.
MGF1ParameterSpec SHA512
The MGF1ParameterSpec which uses SHA-512 message digest.
MGF1ParameterSpec (String mdName)
Constructs a parameter set for mask generation function MGF1 as defined in the PKCS #1 standard.
Parameters | |
---|---|
mdName |
String :
the algorithm name for the message digest
used in this mask generation function MGF1. |
Throws | |
---|---|
NullPointerException |
if mdName is null.
|
String getDigestAlgorithm ()
Returns the algorithm name of the message digest used by the mask generation function.
Returns | |
---|---|
String |
the algorithm name of the message digest. |