Class MGF1ParameterSpec
java.lang.Object
java.security.spec.MGF1ParameterSpec
- All Implemented Interfaces:
- AlgorithmParameterSpec
This class specifies the set of parameters used with mask generation
 function MGF1 in OAEP Padding and RSASSA-PSS signature scheme, as
 defined in the
 PKCS#1 v2.2 standard.
 
Its ASN.1 definition in PKCS#1 standard is described below:
 PKCS1MGFAlgorithms    ALGORITHM-IDENTIFIER ::= {
   { OID id-mgf1 PARAMETERS HashAlgorithm },
   ...  -- Allows for future expansion --
 }
 
 where
 
 HashAlgorithm ::= AlgorithmIdentifier {
   {OAEP-PSSDigestAlgorithms}
 }
 OAEP-PSSDigestAlgorithms    ALGORITHM-IDENTIFIER ::= {
   { OID id-sha1       PARAMETERS NULL }|
   { OID id-sha224     PARAMETERS NULL }|
   { OID id-sha256     PARAMETERS NULL }|
   { OID id-sha384     PARAMETERS NULL }|
   { OID id-sha512     PARAMETERS NULL }|
   { OID id-sha512-224 PARAMETERS NULL }|
   { OID id-sha512-256 PARAMETERS NULL },
   ...  -- Allows for future expansion --
 }
 - Since:
- 1.5
- External Specifications
- See Also:
- 
Field SummaryFieldsModifier and TypeFieldDescriptionstatic final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA-1" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA-224" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA-256" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA3-224" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA3-256" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA3-384" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA3-512" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA-384" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA-512" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA-512/224" message digest.static final MGF1ParameterSpecTheMGF1ParameterSpecuses a "SHA-512/256" message digest.
- 
Constructor SummaryConstructorsConstructorDescriptionMGF1ParameterSpec(String mdName) Constructs a parameter set for mask generation function MGF1 as defined in the PKCS #1 standard.
- 
Method SummaryModifier and TypeMethodDescriptionReturns the algorithm name of the message digest used by the mask generation function.
- 
Field Details- 
SHA1TheMGF1ParameterSpecuses a "SHA-1" message digest.
- 
SHA224TheMGF1ParameterSpecuses a "SHA-224" message digest.
- 
SHA256TheMGF1ParameterSpecuses a "SHA-256" message digest.
- 
SHA384TheMGF1ParameterSpecuses a "SHA-384" message digest.
- 
SHA512TheMGF1ParameterSpecuses a "SHA-512" message digest.
- 
SHA512_224TheMGF1ParameterSpecuses a "SHA-512/224" message digest.- Since:
- 11
 
- 
SHA512_256TheMGF1ParameterSpecuses a "SHA-512/256" message digest.- Since:
- 11
 
- 
SHA3_224TheMGF1ParameterSpecuses a "SHA3-224" message digest.- Since:
- 16
 
- 
SHA3_256TheMGF1ParameterSpecuses a "SHA3-256" message digest.- Since:
- 16
 
- 
SHA3_384TheMGF1ParameterSpecuses a "SHA3-384" message digest.- Since:
- 16
 
- 
SHA3_512TheMGF1ParameterSpecuses a "SHA3-512" message digest.- Since:
- 16
 
 
- 
- 
Constructor Details- 
MGF1ParameterSpecConstructs a parameter set for mask generation function MGF1 as defined in the PKCS #1 standard.- Parameters:
- mdName- the algorithm name for the message digest used in this mask generation function MGF1.
- Throws:
- NullPointerException- if- mdNameis null.
 
 
- 
- 
Method Details- 
getDigestAlgorithmReturns the algorithm name of the message digest used by the mask generation function.- Returns:
- the algorithm name of the message digest.
 
 
-