MGF1ParameterSpec
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 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 -- } 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 -- } See also:
Summary
Fields | |
|---|---|
public static final MGF1ParameterSpec | SHA1 The MGF1ParameterSpec which uses "SHA-1" message digest |
public static final MGF1ParameterSpec | SHA224 The MGF1ParameterSpec which uses "SHA-224" 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 | SHA3_224 The MGF1ParameterSpec which uses SHA3-224 message digest |
public static final MGF1ParameterSpec | SHA3_256 The MGF1ParameterSpec which uses SHA3-256 message digest |
public static final MGF1ParameterSpec | SHA3_384 The MGF1ParameterSpec which uses SHA3-384 message digest |
public static final MGF1ParameterSpec | SHA3_512 The MGF1ParameterSpec which uses SHA3-512 message digest |
public static final MGF1ParameterSpec | SHA512 The MGF1ParameterSpec which uses SHA-512 message digest |
public static final MGF1ParameterSpec | SHA512_224 The MGF1ParameterSpec which uses SHA-512/224 message digest |
public static final MGF1ParameterSpec | SHA512_256 The MGF1ParameterSpec which uses SHA-512/256 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. |
String | toString() Returns a string representation of the object. |
Inherited methods | |
|---|---|
Fields
SHA1
public static final MGF1ParameterSpec SHA1
The MGF1ParameterSpec which uses "SHA-1" message digest
SHA224
public static final MGF1ParameterSpec SHA224
The MGF1ParameterSpec which uses "SHA-224" message digest
SHA256
public static final MGF1ParameterSpec SHA256
The MGF1ParameterSpec which uses "SHA-256" message digest
SHA384
public static final MGF1ParameterSpec SHA384
The MGF1ParameterSpec which uses "SHA-384" message digest
SHA3_224
public static final MGF1ParameterSpec SHA3_224
The MGF1ParameterSpec which uses SHA3-224 message digest
SHA3_256
public static final MGF1ParameterSpec SHA3_256
The MGF1ParameterSpec which uses SHA3-256 message digest
SHA3_384
public static final MGF1ParameterSpec SHA3_384
The MGF1ParameterSpec which uses SHA3-384 message digest
SHA3_512
public static final MGF1ParameterSpec SHA3_512
The MGF1ParameterSpec which uses SHA3-512 message digest
SHA512
public static final MGF1ParameterSpec SHA512
The MGF1ParameterSpec which uses SHA-512 message digest
SHA512_224
public static final MGF1ParameterSpec SHA512_224
The MGF1ParameterSpec which uses SHA-512/224 message digest
SHA512_256
public static final MGF1ParameterSpec SHA512_256
The MGF1ParameterSpec which uses SHA-512/256 message digest
Public constructors
MGF1ParameterSpec
public 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. |
Public methods
getDigestAlgorithm
public 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. |
toString
public String toString ()
Returns a string representation of the object.
| Returns | |
|---|---|
String | a string representation of the object. |