OAEPParameterSpec.java revision 2362
2362N/A * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * This class specifies the set of parameters used with OAEP Padding, 0N/A * Its ASN.1 definition in PKCS#1 standard is described below: 0N/A * RSAES-OAEP-params ::= SEQUENCE { 0N/A * hashAlgorithm [0] OAEP-PSSDigestAlgorithms DEFAULT sha1, 0N/A * maskGenAlgorithm [1] PKCS1MGFAlgorithms DEFAULT mgf1SHA1, 0N/A * pSourceAlgorithm [2] PKCS1PSourceAlgorithms DEFAULT pSpecifiedEmpty 0N/A * OAEP-PSSDigestAlgorithms ALGORITHM-IDENTIFIER ::= { 0N/A * { OID id-sha1 PARAMETERS NULL }| 0N/A * { OID id-sha256 PARAMETERS NULL }| 0N/A * { OID id-sha384 PARAMETERS NULL }| 0N/A * { OID id-sha512 PARAMETERS NULL }, 0N/A * ... -- Allows for future expansion -- 0N/A * PKCS1MGFAlgorithms ALGORITHM-IDENTIFIER ::= { 0N/A * { OID id-mgf1 PARAMETERS OAEP-PSSDigestAlgorithms }, 0N/A * ... -- Allows for future expansion -- 0N/A * PKCS1PSourceAlgorithms ALGORITHM-IDENTIFIER ::= { 0N/A * { OID id-pSpecified PARAMETERS OCTET STRING }, 0N/A * ... -- Allows for future expansion -- 0N/A * <p>Note: the OAEPParameterSpec.DEFAULT uses the following: 0N/A * message digest -- "SHA-1" 0N/A * mask generation function (mgf) -- "MGF1" 0N/A * parameters for mgf -- MGF1ParameterSpec.SHA1 0N/A * source of encoding input -- PSource.PSpecified.DEFAULT 0N/A * @see java.security.spec.MGF1ParameterSpec 0N/A * @author Valerie Peng 0N/A * The OAEP parameter set with all default values. 0N/A * Constructs a parameter set for OAEP padding as defined in 0N/A * the PKCS #1 standard using the default values. 0N/A * Constructs a parameter set for OAEP padding as defined in 0N/A * the PKCS #1 standard using the specified message digest 0N/A * algorithm <code>mdName</code>, mask generation function 0N/A * algorithm <code>mgfName</code>, parameters for the mask 0N/A * generation function <code>mgfSpec</code>, and source of 0N/A * the encoding input P <code>pSrc</code>. 0N/A * @param mdName the algorithm name for the message digest. 0N/A * @param mgfName the algorithm name for the mask generation 0N/A * @param mgfSpec the parameters for the mask generation function. 0N/A * If null is specified, null will be returned by getMGFParameters(). 0N/A * @param pSrc the source of the encoding input P. 0N/A * @exception NullPointerException if <code>mdName</code>, 0N/A * <code>mgfName</code>, or <code>pSrc</code> is null. 0N/A "algorithm is null");
0N/A * Returns the message digest algorithm name. 0N/A * @return the message digest algorithm name. 0N/A * Returns the mask generation function algorithm name. 0N/A * @return the mask generation function algorithm name. 0N/A * Returns the parameters for the mask generation function. 0N/A * @return the parameters for the mask generation function. 0N/A * Returns the source of encoding input P. 0N/A * @return the source of encoding input P.