All Implemented Interfaces:

AlgorithmParameterSpec

public class OAEPParameterSpec
extends Object
implements AlgorithmParameterSpec 

 RSAES-OAEP-params ::= SEQUENCE {
 hashAlgorithm [0] HashAlgorithm DEFAULT sha1,
 maskGenAlgorithm [1] MaskGenAlgorithm DEFAULT mgf1SHA1,
 pSourceAlgorithm [2] PSourceAlgorithm DEFAULT pSpecifiedEmpty
 }
 

 HashAlgorithm ::= AlgorithmIdentifier {
 {OAEP-PSSDigestAlgorithms}
 }
 MaskGenAlgorithm ::= AlgorithmIdentifier { {PKCS1MGFAlgorithms} }
 PSourceAlgorithm ::= AlgorithmIdentifier {
 {PKCS1PSourceAlgorithms}
 }
 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 --
 }
 PKCS1MGFAlgorithms ALGORITHM-IDENTIFIER ::= {
 { OID id-mgf1 PARAMETERS HashAlgorithm },
 ... -- Allows for future expansion --
 }
 PKCS1PSourceAlgorithms ALGORITHM-IDENTIFIER ::= {
 { OID id-pSpecified PARAMETERS EncodingParameters },
 ... -- Allows for future expansion --
 }
 EncodingParameters ::= OCTET STRING(SIZE(0..MAX))
 

 message digest -- "SHA-1"
 mask generation function (mgf) -- "MGF1"
 parameters for mgf -- MGF1ParameterSpec.SHA1
 source of encoding input -- PSource.PSpecified.DEFAULT
 

Since:

1.5

See Also:

MGF1ParameterSpec, PSource

• Field Summary

  Fields

  Modifier and Type	Field	Description
  static OAEPParameterSpec	DEFAULT	The OAEP parameter set with all default values.

• Constructor Summary

  Constructors

  Constructor	Description
  OAEPParameterSpec (String mdName, String mgfName, AlgorithmParameterSpec mgfSpec, PSource pSrc)	Constructs a parameter set for OAEP padding as defined in the PKCS #1 standard using the specified message digest algorithm mdName, mask generation function algorithm mgfName, parameters for the mask generation function mgfSpec, and source of the encoding input P pSrc.

• Method Summary

  All Methods

  Modifier and Type	Method	Description
  String	getDigestAlgorithm ()	Returns the message digest algorithm name.
  String	getMGFAlgorithm ()	Returns the mask generation function algorithm name.
  AlgorithmParameterSpec	getMGFParameters ()	Returns the parameters for the mask generation function.
  PSource	getPSource ()	Returns the source of encoding input P.

  • Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• Field Detail

  • DEFAULT

    public static final OAEPParameterSpec DEFAULT

    The OAEP parameter set with all default values.

• Constructor Detail

  • OAEPParameterSpec

    public OAEPParameterSpec(String mdName,
     String mgfName,
     AlgorithmParameterSpec mgfSpec,
     PSource pSrc)

    Constructs a parameter set for OAEP padding as defined in the PKCS #1 standard using the specified message digest algorithm mdName, mask generation function algorithm mgfName, parameters for the mask generation function mgfSpec, and source of the encoding input P pSrc.

    Parameters:

    mdName - the algorithm name for the message digest.

    mgfName - the algorithm name for the mask generation function.

    mgfSpec - the parameters for the mask generation function. If null is specified, null will be returned by getMGFParameters().

    pSrc - the source of the encoding input P.

    Throws:

    NullPointerException - if mdName, mgfName, or pSrc is null.

• Method Detail

  • getDigestAlgorithm

    public String getDigestAlgorithm()

    Returns the message digest algorithm name.

    Returns:

    the message digest algorithm name.

  • getMGFAlgorithm

    public String getMGFAlgorithm()

    Returns the mask generation function algorithm name.

    Returns:

    the mask generation function algorithm name.

  • getMGFParameters

    public AlgorithmParameterSpec getMGFParameters()

    Returns the parameters for the mask generation function.

    Returns:

    the parameters for the mask generation function.

  • getPSource

    public PSource getPSource()

    Returns the source of encoding input P.

    Returns:

    the source of encoding input P.