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Java Source Code / Java Documentation » 6.0 JDK Core » security » java.security.spec

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

java.security.spec .MGF1ParameterSpec

MGF1ParameterSpec

public class MGF1ParameterSpec implements AlgorithmParameterSpec(Code)

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-PSSDigestAlgorthms

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 --
 }

See Also:   PSSParameterSpec
See Also:   javax.crypto.spec.OAEPParameterSpec
author:
   Valerie Peng
version:
   1.11, 05/05/07
since:
   1.5

Field Summary
final public static MGF1ParameterSpec	SHA1 The MGF1ParameterSpec which uses "SHA-1" message digest.
final public static MGF1ParameterSpec	SHA256 The MGF1ParameterSpec which uses "SHA-256" message digest.
final public static MGF1ParameterSpec	SHA384 The MGF1ParameterSpec which uses "SHA-384" message digest.
final public static MGF1ParameterSpec	SHA512 The MGF1ParameterSpec which uses SHA-512 message digest.

Constructor Summary
public	MGF1ParameterSpec(String mdName) Constructs a parameter set for mask generation function MGF1 as defined in the PKCS #1 standard. Parameters: mdName - the algorithm name for the message digestused in this mask generation function MGF1.

Method Summary
public String	getDigestAlgorithm() Returns the algorithm name of the message digest used by the mask generation function.

Field Detail

SHA1
final public static MGF1ParameterSpec SHA1(Code)
	The MGF1ParameterSpec which uses "SHA-1" message digest.

SHA256
final public static MGF1ParameterSpec SHA256(Code)
	The MGF1ParameterSpec which uses "SHA-256" message digest.

SHA384
final public static MGF1ParameterSpec SHA384(Code)
	The MGF1ParameterSpec which uses "SHA-384" message digest.

SHA512
final public static MGF1ParameterSpec SHA512(Code)
	The MGF1ParameterSpec which uses SHA-512 message digest.

Constructor Detail

MGF1ParameterSpec
public MGF1ParameterSpec(String mdName)(Code)
	Constructs a parameter set for mask generation function MGF1 as defined in the PKCS #1 standard. Parameters: mdName - the algorithm name for the message digestused in this mask generation function MGF1. exception: NullPointerException - if `mdName` is null.

Method Detail

getDigestAlgorithm
public String getDigestAlgorithm()(Code)
	Returns the algorithm name of the message digest used by the mask generation function. the algorithm name of the message digest.

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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