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8146293: Add support for RSASSA-PSS Signature algorithm
Add RSASSA-PSS key and signature support to SunRsaSign provider Reviewed-by: wetmore
This commit is contained in:
Valerie Peng
parent
6216182dd1
commit
9e8d9fe1ee
79 changed files with 5489 additions and 627 deletions
255
src/java.base/share/classes/sun/security/rsa/PSSParameters.java
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255
src/java.base/share/classes/sun/security/rsa/PSSParameters.java
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/*
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* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.security.rsa;
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import java.io.*;
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import sun.security.util.*;
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import sun.security.x509.*;
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import java.security.AlgorithmParametersSpi;
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import java.security.NoSuchAlgorithmException;
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import java.security.spec.AlgorithmParameterSpec;
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import java.security.spec.InvalidParameterSpecException;
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import java.security.spec.MGF1ParameterSpec;
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import java.security.spec.PSSParameterSpec;
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import static java.security.spec.PSSParameterSpec.DEFAULT;
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/**
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* This class implements the PSS parameters used with the RSA
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* signatures in PSS padding. Here is its ASN.1 definition:
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* RSASSA-PSS-params ::= SEQUENCE {
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* hashAlgorithm [0] HashAlgorithm DEFAULT sha1,
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* maskGenAlgorithm [1] MaskGenAlgorithm DEFAULT mgf1SHA1,
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* saltLength [2] INTEGER DEFAULT 20
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* trailerField [3] TrailerField DEFAULT trailerFieldBC
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* }
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*
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* @author Valerie Peng
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*
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*/
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public final class PSSParameters extends AlgorithmParametersSpi {
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private String mdName;
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private MGF1ParameterSpec mgfSpec;
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private int saltLength;
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private int trailerField;
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private static final ObjectIdentifier OID_MGF1 =
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ObjectIdentifier.newInternal(new int[] {1,2,840,113549,1,1,8});
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public PSSParameters() {
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}
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@Override
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protected void engineInit(AlgorithmParameterSpec paramSpec)
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throws InvalidParameterSpecException {
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if (!(paramSpec instanceof PSSParameterSpec)) {
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throw new InvalidParameterSpecException
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("Inappropriate parameter specification");
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}
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PSSParameterSpec spec = (PSSParameterSpec) paramSpec;
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this.mdName = spec.getDigestAlgorithm();
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String mgfName = spec.getMGFAlgorithm();
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if (!mgfName.equalsIgnoreCase("MGF1")) {
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throw new InvalidParameterSpecException("Unsupported mgf " +
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mgfName + "; MGF1 only");
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}
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AlgorithmParameterSpec mgfSpec = spec.getMGFParameters();
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if (!(mgfSpec instanceof MGF1ParameterSpec)) {
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throw new InvalidParameterSpecException("Inappropriate mgf " +
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"parameters; non-null MGF1ParameterSpec only");
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}
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this.mgfSpec = (MGF1ParameterSpec) mgfSpec;
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this.saltLength = spec.getSaltLength();
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this.trailerField = spec.getTrailerField();
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}
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@Override
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protected void engineInit(byte[] encoded) throws IOException {
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// first initialize with the DEFAULT values before
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// retrieving from the encoding bytes
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this.mdName = DEFAULT.getDigestAlgorithm();
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this.mgfSpec = (MGF1ParameterSpec) DEFAULT.getMGFParameters();
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this.saltLength = DEFAULT.getSaltLength();
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this.trailerField = DEFAULT.getTrailerField();
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DerInputStream der = new DerInputStream(encoded);
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DerValue[] datum = der.getSequence(4);
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for (DerValue d : datum) {
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if (d.isContextSpecific((byte) 0x00)) {
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// hash algid
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this.mdName = AlgorithmId.parse
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(d.data.getDerValue()).getName();
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} else if (d.isContextSpecific((byte) 0x01)) {
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// mgf algid
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AlgorithmId val = AlgorithmId.parse(d.data.getDerValue());
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if (!val.getOID().equals(OID_MGF1)) {
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throw new IOException("Only MGF1 mgf is supported");
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}
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AlgorithmId params = AlgorithmId.parse(
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new DerValue(val.getEncodedParams()));
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String mgfDigestName = params.getName();
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switch (mgfDigestName) {
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case "SHA-1":
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this.mgfSpec = MGF1ParameterSpec.SHA1;
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break;
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case "SHA-224":
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this.mgfSpec = MGF1ParameterSpec.SHA224;
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break;
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case "SHA-256":
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this.mgfSpec = MGF1ParameterSpec.SHA256;
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break;
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case "SHA-384":
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this.mgfSpec = MGF1ParameterSpec.SHA384;
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break;
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case "SHA-512":
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this.mgfSpec = MGF1ParameterSpec.SHA512;
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break;
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case "SHA-512/224":
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this.mgfSpec = MGF1ParameterSpec.SHA512_224;
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break;
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case "SHA-512/256":
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this.mgfSpec = MGF1ParameterSpec.SHA512_256;
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break;
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default:
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throw new IOException
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("Unrecognized message digest algorithm " +
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mgfDigestName);
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}
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} else if (d.isContextSpecific((byte) 0x02)) {
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// salt length
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this.saltLength = d.data.getDerValue().getInteger();
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if (this.saltLength < 0) {
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throw new IOException("Negative value for saltLength");
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}
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} else if (d.isContextSpecific((byte) 0x03)) {
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// trailer field
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this.trailerField = d.data.getDerValue().getInteger();
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if (this.trailerField != 1) {
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throw new IOException("Unsupported trailerField value " +
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this.trailerField);
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}
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} else {
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throw new IOException("Invalid encoded PSSParameters");
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}
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}
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}
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@Override
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protected void engineInit(byte[] encoded, String decodingMethod)
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throws IOException {
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if ((decodingMethod != null) &&
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(!decodingMethod.equalsIgnoreCase("ASN.1"))) {
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throw new IllegalArgumentException("Only support ASN.1 format");
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}
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engineInit(encoded);
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}
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@Override
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protected <T extends AlgorithmParameterSpec>
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T engineGetParameterSpec(Class<T> paramSpec)
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throws InvalidParameterSpecException {
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if (PSSParameterSpec.class.isAssignableFrom(paramSpec)) {
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return paramSpec.cast(
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new PSSParameterSpec(mdName, "MGF1", mgfSpec,
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saltLength, trailerField));
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} else {
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throw new InvalidParameterSpecException
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("Inappropriate parameter specification");
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}
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}
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@Override
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protected byte[] engineGetEncoded() throws IOException {
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DerOutputStream tmp = new DerOutputStream();
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DerOutputStream tmp2, tmp3;
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// MD
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AlgorithmId mdAlgId;
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try {
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mdAlgId = AlgorithmId.get(mdName);
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} catch (NoSuchAlgorithmException nsae) {
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throw new IOException("AlgorithmId " + mdName +
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" impl not found");
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}
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tmp2 = new DerOutputStream();
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mdAlgId.derEncode(tmp2);
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tmp.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0),
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tmp2);
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// MGF
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tmp2 = new DerOutputStream();
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tmp2.putOID(OID_MGF1);
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AlgorithmId mgfDigestId;
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try {
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mgfDigestId = AlgorithmId.get(mgfSpec.getDigestAlgorithm());
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} catch (NoSuchAlgorithmException nase) {
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throw new IOException("AlgorithmId " +
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mgfSpec.getDigestAlgorithm() + " impl not found");
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}
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mgfDigestId.encode(tmp2);
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tmp3 = new DerOutputStream();
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tmp3.write(DerValue.tag_Sequence, tmp2);
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tmp.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)1),
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tmp3);
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// SaltLength
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tmp2 = new DerOutputStream();
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tmp2.putInteger(saltLength);
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tmp.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)2),
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tmp2);
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// TrailerField
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tmp2 = new DerOutputStream();
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tmp2.putInteger(trailerField);
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tmp.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)3),
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tmp2);
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// Put all together under a SEQUENCE tag
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DerOutputStream out = new DerOutputStream();
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out.write(DerValue.tag_Sequence, tmp);
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return out.toByteArray();
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}
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@Override
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protected byte[] engineGetEncoded(String encMethod) throws IOException {
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if ((encMethod != null) &&
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(!encMethod.equalsIgnoreCase("ASN.1"))) {
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throw new IllegalArgumentException("Only support ASN.1 format");
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}
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return engineGetEncoded();
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}
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@Override
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protected String engineToString() {
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StringBuilder sb = new StringBuilder();
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sb.append("MD: " + mdName + "\n")
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.append("MGF: MGF1" + mgfSpec.getDigestAlgorithm() + "\n")
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.append("SaltLength: " + saltLength + "\n")
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.append("TrailerField: " + trailerField + "\n");
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return sb.toString();
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}
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}
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