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685 lines
25 KiB
Java
685 lines
25 KiB
Java
/*
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* Copyright (c) 1996, 2021, 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.x509;
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import java.io.*;
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import java.util.*;
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import java.util.concurrent.ConcurrentHashMap;
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import java.security.*;
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import sun.security.util.*;
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/**
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* This class identifies algorithms, such as cryptographic transforms, each
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* of which may be associated with parameters. Instances of this base class
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* are used when this runtime environment has no special knowledge of the
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* algorithm type, and may also be used in other cases. Equivalence is
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* defined according to OID and (where relevant) parameters.
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*
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* <P>Subclasses may be used, for example when the algorithm ID has
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* associated parameters which some code (e.g. code using public keys) needs
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* to have parsed. Two examples of such algorithms are Diffie-Hellman key
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* exchange, and the Digital Signature Standard Algorithm (DSS/DSA).
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*
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* <P>The OID constants defined in this class correspond to some widely
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* used algorithms, for which conventional string names have been defined.
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* This class is not a general repository for OIDs, or for such string names.
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* Note that the mappings between algorithm IDs and algorithm names is
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* not one-to-one.
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*
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*
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* @author David Brownell
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* @author Amit Kapoor
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* @author Hemma Prafullchandra
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*/
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public class AlgorithmId implements Serializable, DerEncoder {
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/** use serialVersionUID from JDK 1.1. for interoperability */
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@java.io.Serial
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private static final long serialVersionUID = 7205873507486557157L;
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/**
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* The object identitifer being used for this algorithm.
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*/
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private ObjectIdentifier algid;
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// The (parsed) parameters
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@SuppressWarnings("serial") // Not statically typed as Serializable
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private AlgorithmParameters algParams;
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/**
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* Parameters for this algorithm. These are stored in unparsed
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* DER-encoded form; subclasses can be made to automaticaly parse
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* them so there is fast access to these parameters.
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*/
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protected transient byte[] encodedParams;
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/**
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* Constructs an algorithm ID which will be initialized
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* separately, for example by deserialization.
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* @deprecated use one of the other constructors.
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*/
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@Deprecated
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public AlgorithmId() { }
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/**
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* Constructs a parameterless algorithm ID.
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*
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* @param oid the identifier for the algorithm
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*/
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public AlgorithmId(ObjectIdentifier oid) {
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algid = oid;
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}
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/**
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* Constructs an algorithm ID with algorithm parameters.
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*
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* @param oid the identifier for the algorithm.
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* @param algparams the associated algorithm parameters, can be null.
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*/
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public AlgorithmId(ObjectIdentifier oid, AlgorithmParameters algparams) {
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algid = oid;
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this.algParams = algparams;
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if (algParams != null) {
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try {
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encodedParams = algParams.getEncoded();
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} catch (IOException ioe) {
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// Ignore this at the moment. This exception can occur
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// if AlgorithmParameters was not initialized yet. Will
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// try to re-getEncoded() again later.
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}
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}
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}
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/**
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* Constructs an algorithm ID with algorithm parameters as a DerValue.
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*
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* @param oid the identifier for the algorithm.
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* @param params the associated algorithm parameters, can be null.
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*/
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public AlgorithmId(ObjectIdentifier oid, DerValue params)
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throws IOException {
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this.algid = oid;
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if (params != null) {
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encodedParams = params.toByteArray();
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decodeParams();
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}
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}
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protected void decodeParams() throws IOException {
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String algidName = getName();
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try {
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algParams = AlgorithmParameters.getInstance(algidName);
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} catch (NoSuchAlgorithmException e) {
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/*
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* This algorithm parameter type is not supported, so we cannot
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* parse the parameters.
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*/
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algParams = null;
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return;
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}
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// Decode (parse) the parameters
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algParams.init(encodedParams.clone());
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}
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/**
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* Marshal a DER-encoded "AlgorithmID" sequence on the DER stream.
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*/
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public final void encode(DerOutputStream out) throws IOException {
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derEncode(out);
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}
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/**
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* DER encode this object onto an output stream.
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* Implements the <code>DerEncoder</code> interface.
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*
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* @param out
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* the output stream on which to write the DER encoding.
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*
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* @exception IOException on encoding error.
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*/
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@Override
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public void derEncode (OutputStream out) throws IOException {
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DerOutputStream bytes = new DerOutputStream();
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DerOutputStream tmp = new DerOutputStream();
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bytes.putOID(algid);
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// Re-getEncoded() from algParams if it was not initialized
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if (algParams != null && encodedParams == null) {
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encodedParams = algParams.getEncoded();
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// If still not initialized. Let the IOE be thrown.
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}
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if (encodedParams == null) {
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// Changes backed out for compatibility with Solaris
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// Several AlgorithmId should omit the whole parameter part when
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// it's NULL. They are ---
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// RFC 3370 2.1: Implementations SHOULD generate SHA-1
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// AlgorithmIdentifiers with absent parameters.
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// RFC 3447 C1: When id-sha1, id-sha224, id-sha256, id-sha384 and
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// id-sha512 are used in an AlgorithmIdentifier the parameters
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// (which are optional) SHOULD be omitted.
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// RFC 3279 2.3.2: The id-dsa algorithm syntax includes optional
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// domain parameters... When omitted, the parameters component
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// MUST be omitted entirely
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// RFC 3370 3.1: When the id-dsa-with-sha1 algorithm identifier
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// is used, the AlgorithmIdentifier parameters field MUST be absent.
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/*if (
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algid.equals((Object)SHA_oid) ||
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algid.equals((Object)SHA224_oid) ||
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algid.equals((Object)SHA256_oid) ||
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algid.equals((Object)SHA384_oid) ||
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algid.equals((Object)SHA512_oid) ||
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algid.equals((Object)SHA512_224_oid) ||
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algid.equals((Object)SHA512_256_oid) ||
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algid.equals((Object)SHA3_224_oid) ||
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algid.equals((Object)SHA3_256_oid) ||
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algid.equals((Object)SHA3_384_oid) ||
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algid.equals((Object)SHA3_512_oid) ||
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algid.equals((Object)DSA_oid) ||
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algid.equals((Object)sha1WithDSA_oid)) {
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; // no parameter part encoded
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} else {
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bytes.putNull();
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}*/
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if (algid.equals(RSASSA_PSS_oid) || algid.equals(ed448_oid)
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|| algid.equals(ed25519_oid)
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|| algid.equals(x448_oid)
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|| algid.equals(x25519_oid)
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|| algid.equals(SHA224withECDSA_oid)
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|| algid.equals(SHA256withECDSA_oid)
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|| algid.equals(SHA384withECDSA_oid)
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|| algid.equals(SHA512withECDSA_oid)) {
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// RFC 4055 3.3: when an RSASSA-PSS key does not require
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// parameter validation, field is absent.
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// RFC 8410 3: for id-X25519, id-X448, id-Ed25519, and
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// id-Ed448, the parameters must be absent.
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// RFC 5758 3.2: the encoding must omit the parameters field
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// for ecdsa-with-SHA224, ecdsa-with-SHA256, ecdsa-with-SHA384
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// and ecdsa-with-SHA512.
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} else {
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bytes.putNull();
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}
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} else {
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bytes.write(encodedParams);
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}
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tmp.write(DerValue.tag_Sequence, bytes);
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out.write(tmp.toByteArray());
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}
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/**
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* Returns the DER-encoded X.509 AlgorithmId as a byte array.
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*/
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public final byte[] encode() throws IOException {
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DerOutputStream out = new DerOutputStream();
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derEncode(out);
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return out.toByteArray();
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}
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/**
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* Returns the ISO OID for this algorithm. This is usually converted
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* to a string and used as part of an algorithm name, for example
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* "OID.1.3.14.3.2.13" style notation. Use the <code>getName</code>
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* call when you do not need to ensure cross-system portability
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* of algorithm names, or need a user friendly name.
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*/
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public final ObjectIdentifier getOID () {
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return algid;
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}
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/**
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* Returns a name for the algorithm which may be more intelligible
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* to humans than the algorithm's OID, but which won't necessarily
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* be comprehensible on other systems. For example, this might
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* return a name such as "MD5withRSA" for a signature algorithm on
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* some systems. It also returns names like "OID.1.2.3.4", when
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* no particular name for the algorithm is known.
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*
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* Note: for ecdsa-with-SHA2 plus hash algorithm (Ex: SHA-256), this method
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* returns the "full" signature algorithm (Ex: SHA256withECDSA) directly.
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*/
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public String getName() {
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String oidStr = algid.toString();
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// first check the list of support oids
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KnownOIDs o = KnownOIDs.findMatch(oidStr);
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if (o == KnownOIDs.SpecifiedSHA2withECDSA) {
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if (encodedParams != null) {
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try {
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AlgorithmId digestParams =
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AlgorithmId.parse(new DerValue(encodedParams));
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String digestAlg = digestParams.getName();
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return digestAlg.replace("-", "") + "withECDSA";
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} catch (IOException e) {
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// ignore
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}
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}
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}
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if (o != null) {
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return o.stdName();
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} else {
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String n = aliasOidsTable().get(oidStr);
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if (n != null) {
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return n;
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} else {
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return algid.toString();
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}
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}
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}
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public AlgorithmParameters getParameters() {
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return algParams;
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}
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/**
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* Returns the DER encoded parameter, which can then be
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* used to initialize java.security.AlgorithmParameters.
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*
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* Note that this* method should always return a new array as it is called
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* directly by the JDK implementation of X509Certificate.getSigAlgParams()
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* and X509CRL.getSigAlgParams().
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*
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* Note: for ecdsa-with-SHA2 plus hash algorithm (Ex: SHA-256), this method
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* returns null because {@link #getName()} has already returned the "full"
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* signature algorithm (Ex: SHA256withECDSA).
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*
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* @return DER encoded parameters, or null not present.
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*/
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public byte[] getEncodedParams() {
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return (encodedParams == null ||
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algid.toString().equals(KnownOIDs.SpecifiedSHA2withECDSA.value()))
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? null
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: encodedParams.clone();
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}
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/**
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* Returns true iff the argument indicates the same algorithm
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* with the same parameters.
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*/
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public boolean equals(AlgorithmId other) {
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return algid.equals((Object)other.algid) &&
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Arrays.equals(encodedParams, other.encodedParams);
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}
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/**
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* Compares this AlgorithmID to another. If algorithm parameters are
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* available, they are compared. Otherwise, just the object IDs
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* for the algorithm are compared.
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*
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* @param other preferably an AlgorithmId, else an ObjectIdentifier
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*/
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@Override
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public boolean equals(Object other) {
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if (this == other) {
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return true;
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}
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if (other instanceof AlgorithmId) {
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return equals((AlgorithmId) other);
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} else if (other instanceof ObjectIdentifier) {
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return equals((ObjectIdentifier) other);
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} else {
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return false;
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}
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}
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/**
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* Compares two algorithm IDs for equality. Returns true iff
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* they are the same algorithm, ignoring algorithm parameters.
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*/
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public final boolean equals(ObjectIdentifier id) {
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return algid.equals((Object)id);
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}
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/**
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* Returns a hashcode for this AlgorithmId.
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*
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* @return a hashcode for this AlgorithmId.
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*/
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@Override
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public int hashCode() {
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int hashCode = algid.hashCode();
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hashCode = 31 * hashCode + Arrays.hashCode(encodedParams);
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return hashCode;
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}
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/**
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* Provides a human-readable description of the algorithm parameters.
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* This may be redefined by subclasses which parse those parameters.
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*/
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protected String paramsToString() {
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if (encodedParams == null) {
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return "";
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} else if (algParams != null) {
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return ", " + algParams.toString();
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} else {
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return ", params unparsed";
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}
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}
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/**
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* Returns a string describing the algorithm and its parameters.
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*/
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@Override
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public String toString() {
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return getName() + paramsToString();
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}
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/**
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* Parse (unmarshal) an ID from a DER sequence input value. This form
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* parsing might be used when expanding a value which has already been
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* partially unmarshaled as a set or sequence member.
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*
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* @exception IOException on error.
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* @param val the input value, which contains the algid and, if
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* there are any parameters, those parameters.
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* @return an ID for the algorithm. If the system is configured
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* appropriately, this may be an instance of a class
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* with some kind of special support for this algorithm.
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* In that case, you may "narrow" the type of the ID.
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*/
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public static AlgorithmId parse(DerValue val) throws IOException {
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if (val.tag != DerValue.tag_Sequence) {
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throw new IOException("algid parse error, not a sequence");
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}
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/*
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* Get the algorithm ID and any parameters.
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*/
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ObjectIdentifier algid;
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DerValue params;
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DerInputStream in = val.toDerInputStream();
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algid = in.getOID();
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if (in.available() == 0) {
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params = null;
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} else {
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params = in.getDerValue();
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if (params.tag == DerValue.tag_Null) {
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if (params.length() != 0) {
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throw new IOException("invalid NULL");
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}
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params = null;
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}
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if (in.available() != 0) {
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throw new IOException("Invalid AlgorithmIdentifier: extra data");
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}
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}
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return new AlgorithmId(algid, params);
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}
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/**
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* Returns one of the algorithm IDs most commonly associated
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* with this algorithm name.
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*
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* @param algname the name being used
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* @deprecated use the short get form of this method.
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* @exception NoSuchAlgorithmException on error.
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*/
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@Deprecated
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public static AlgorithmId getAlgorithmId(String algname)
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throws NoSuchAlgorithmException {
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return get(algname);
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}
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/**
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* Returns one of the algorithm IDs most commonly associated
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* with this algorithm name.
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*
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* @param algname the name being used
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* @exception NoSuchAlgorithmException on error.
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*/
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public static AlgorithmId get(String algname)
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throws NoSuchAlgorithmException {
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ObjectIdentifier oid;
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try {
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oid = algOID(algname);
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} catch (IOException ioe) {
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throw new NoSuchAlgorithmException
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("Invalid ObjectIdentifier " + algname);
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}
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if (oid == null) {
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throw new NoSuchAlgorithmException
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("unrecognized algorithm name: " + algname);
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}
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return new AlgorithmId(oid);
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}
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/**
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* Returns one of the algorithm IDs most commonly associated
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* with this algorithm parameters.
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*
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* @param algparams the associated algorithm parameters.
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* @exception NoSuchAlgorithmException on error.
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*/
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public static AlgorithmId get(AlgorithmParameters algparams)
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throws NoSuchAlgorithmException {
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ObjectIdentifier oid;
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String algname = algparams.getAlgorithm();
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try {
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oid = algOID(algname);
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} catch (IOException ioe) {
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throw new NoSuchAlgorithmException
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("Invalid ObjectIdentifier " + algname);
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}
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if (oid == null) {
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throw new NoSuchAlgorithmException
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("unrecognized algorithm name: " + algname);
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}
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return new AlgorithmId(oid, algparams);
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}
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/*
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* Translates from some common algorithm names to the
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* OID with which they're usually associated ... this mapping
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* is the reverse of the one below, except in those cases
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* where synonyms are supported or where a given algorithm
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* is commonly associated with multiple OIDs.
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*
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* XXX This method needs to be enhanced so that we can also pass the
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* scope of the algorithm name to it, e.g., the algorithm name "DSA"
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* may have a different OID when used as a "Signature" algorithm than when
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* used as a "KeyPairGenerator" algorithm.
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*/
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private static ObjectIdentifier algOID(String name) throws IOException {
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if (name.startsWith("OID.")) {
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name = name.substring("OID.".length());
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}
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KnownOIDs k = KnownOIDs.findMatch(name);
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if (k != null) {
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return ObjectIdentifier.of(k);
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}
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// unknown algorithm oids
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if (!name.contains(".")) {
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// see if there is a matching oid string alias mapping from
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// 3rd party providers
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name = name.toUpperCase(Locale.ENGLISH);
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String oidStr = aliasOidsTable().get(name);
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if (oidStr != null) {
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return ObjectIdentifier.of(oidStr);
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} return null;
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} else {
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return ObjectIdentifier.of(name);
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}
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}
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// oid string cache index'ed by algorithm name and oid strings
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private static volatile Map<String,String> aliasOidsTable;
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|
|
// called by sun.security.jca.Providers whenever provider list is changed
|
|
public static void clearAliasOidsTable() {
|
|
aliasOidsTable = null;
|
|
}
|
|
|
|
// returns the aliasOidsTable, lazily initializing it on first access.
|
|
private static Map<String,String> aliasOidsTable() {
|
|
// Double checked locking; safe because aliasOidsTable is volatile
|
|
Map<String,String> tab = aliasOidsTable;
|
|
if (tab == null) {
|
|
synchronized (AlgorithmId.class) {
|
|
if ((tab = aliasOidsTable) == null) {
|
|
aliasOidsTable = tab = collectOIDAliases();
|
|
}
|
|
}
|
|
}
|
|
return tab;
|
|
}
|
|
|
|
private static boolean isKnownProvider(Provider p) {
|
|
String pn = p.getName();
|
|
String mn = p.getClass().getModule().getName();
|
|
if (pn != null && mn != null) {
|
|
return ((mn.equals("java.base") &&
|
|
(pn.equals("SUN") || pn.equals("SunRsaSign") ||
|
|
pn.equals("SunJCE") || pn.equals("SunJSSE"))) ||
|
|
(mn.equals("jdk.crypto.ec") && pn.equals("SunEC")) ||
|
|
(mn.equals("jdk.crypto.mscapi") && pn.equals("SunMSCAPI")) ||
|
|
(mn.equals("jdk.crypto.cryptoki") &&
|
|
pn.startsWith("SunPKCS11")));
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
private static ConcurrentHashMap<String, String> collectOIDAliases() {
|
|
ConcurrentHashMap<String, String> t = new ConcurrentHashMap<>();
|
|
for (Provider provider : Security.getProviders()) {
|
|
// skip providers which are already using SecurityProviderConstants
|
|
// and KnownOIDs
|
|
if (isKnownProvider(provider)) {
|
|
continue;
|
|
}
|
|
for (Object key : provider.keySet()) {
|
|
String alias = (String)key;
|
|
String upperCaseAlias = alias.toUpperCase(Locale.ENGLISH);
|
|
int index;
|
|
if (upperCaseAlias.startsWith("ALG.ALIAS") &&
|
|
(index = upperCaseAlias.indexOf("OID.", 0)) != -1) {
|
|
index += "OID.".length();
|
|
if (index == alias.length()) {
|
|
// invalid alias entry
|
|
break;
|
|
}
|
|
String ostr = alias.substring(index);
|
|
String stdAlgName = provider.getProperty(alias);
|
|
if (stdAlgName != null) {
|
|
stdAlgName = stdAlgName.toUpperCase(Locale.ENGLISH);
|
|
}
|
|
// add the name->oid and oid->name mappings if none exists
|
|
if (KnownOIDs.findMatch(stdAlgName) == null) {
|
|
// not override earlier entries if it exists
|
|
t.putIfAbsent(stdAlgName, ostr);
|
|
}
|
|
if (KnownOIDs.findMatch(ostr) == null) {
|
|
// not override earlier entries if it exists
|
|
t.putIfAbsent(ostr, stdAlgName);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return t;
|
|
}
|
|
|
|
public static final ObjectIdentifier MD2_oid =
|
|
ObjectIdentifier.of(KnownOIDs.MD2);
|
|
|
|
public static final ObjectIdentifier MD5_oid =
|
|
ObjectIdentifier.of(KnownOIDs.MD5);
|
|
|
|
public static final ObjectIdentifier SHA_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA_1);
|
|
|
|
public static final ObjectIdentifier SHA224_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA_224);
|
|
|
|
public static final ObjectIdentifier SHA256_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA_256);
|
|
|
|
public static final ObjectIdentifier SHA384_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA_384);
|
|
|
|
public static final ObjectIdentifier SHA512_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA_512);
|
|
|
|
public static final ObjectIdentifier SHA512_224_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA_512$224);
|
|
|
|
public static final ObjectIdentifier SHA512_256_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA_512$256);
|
|
|
|
public static final ObjectIdentifier SHA3_224_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA3_224);
|
|
|
|
public static final ObjectIdentifier SHA3_256_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA3_256);
|
|
|
|
public static final ObjectIdentifier SHA3_384_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA3_384);
|
|
|
|
public static final ObjectIdentifier SHA3_512_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA3_512);
|
|
|
|
public static final ObjectIdentifier DSA_oid =
|
|
ObjectIdentifier.of(KnownOIDs.DSA);
|
|
|
|
public static final ObjectIdentifier EC_oid =
|
|
ObjectIdentifier.of(KnownOIDs.EC);
|
|
|
|
public static final ObjectIdentifier RSAEncryption_oid =
|
|
ObjectIdentifier.of(KnownOIDs.RSA);
|
|
|
|
public static final ObjectIdentifier RSASSA_PSS_oid =
|
|
ObjectIdentifier.of(KnownOIDs.RSASSA_PSS);
|
|
|
|
public static final ObjectIdentifier MGF1_oid =
|
|
ObjectIdentifier.of(KnownOIDs.MGF1);
|
|
|
|
public static final ObjectIdentifier ed25519_oid =
|
|
ObjectIdentifier.of(KnownOIDs.Ed25519);
|
|
public static final ObjectIdentifier ed448_oid =
|
|
ObjectIdentifier.of(KnownOIDs.Ed448);
|
|
|
|
public static final ObjectIdentifier x25519_oid =
|
|
ObjectIdentifier.of(KnownOIDs.X25519);
|
|
public static final ObjectIdentifier x448_oid =
|
|
ObjectIdentifier.of(KnownOIDs.X448);
|
|
|
|
public static final ObjectIdentifier SHA224withECDSA_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA224withECDSA);
|
|
public static final ObjectIdentifier SHA256withECDSA_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA256withECDSA);
|
|
public static final ObjectIdentifier SHA384withECDSA_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA384withECDSA);
|
|
public static final ObjectIdentifier SHA512withECDSA_oid =
|
|
ObjectIdentifier.of(KnownOIDs.SHA512withECDSA);
|
|
}
|