public class MGF1ParameterSpec extends Object implements AlgorithmParameterSpec
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 --
}
PSSParameterSpec,
OAEPParameterSpec| Modifier and Type | Field and Description |
|---|---|
static MGF1ParameterSpec |
SHA1
The MGF1ParameterSpec which uses "SHA-1" message digest
|
static MGF1ParameterSpec |
SHA224
The MGF1ParameterSpec which uses "SHA-224" message digest
|
static MGF1ParameterSpec |
SHA256
The MGF1ParameterSpec which uses "SHA-256" message digest
|
static MGF1ParameterSpec |
SHA384
The MGF1ParameterSpec which uses "SHA-384" message digest
|
static MGF1ParameterSpec |
SHA512
The MGF1ParameterSpec which uses SHA-512 message digest
|
static MGF1ParameterSpec |
SHA512_224
The MGF1ParameterSpec which uses SHA-512/224 message digest
|
static MGF1ParameterSpec |
SHA512_256
The MGF1ParameterSpec which uses SHA-512/256 message digest
|
| Constructor and Description |
|---|
MGF1ParameterSpec(String mdName)
Constructs a parameter set for mask generation function MGF1
as defined in the PKCS #1 standard.
|
| Modifier and Type | Method and Description |
|---|---|
String |
getDigestAlgorithm()
Returns the algorithm name of the message digest used by the mask
generation function.
|
public static final MGF1ParameterSpec SHA1
public static final MGF1ParameterSpec SHA224
public static final MGF1ParameterSpec SHA256
public static final MGF1ParameterSpec SHA384
public static final MGF1ParameterSpec SHA512
public static final MGF1ParameterSpec SHA512_224
public static final MGF1ParameterSpec SHA512_256
public MGF1ParameterSpec(String mdName)
mdName - the algorithm name for the message digest
used in this mask generation function MGF1.NullPointerException - if mdName is null.public String getDigestAlgorithm()
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