9a9ac1d005
Reviewed-by: mullan, ascarpino, rhalade
59 lines
2.5 KiB
Java
59 lines
2.5 KiB
Java
/*
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* Copyright (c) 2023, 2024, 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.
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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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/**
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* @test
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* @bug 8320597
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* @summary Verify RSA signature with omitted digest params (should be encoded as NULL)
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* for backward compatibility
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*/
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import java.security.KeyFactory;
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import java.security.Signature;
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import java.security.spec.X509EncodedKeySpec;
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import java.util.Base64;
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public class WithoutNULL {
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public static void main(String[] args) throws Exception {
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// A 1024-bit RSA public key
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byte[] key = Base64.getMimeDecoder().decode("""
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MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrfTrEm4KvdFSpGAM7InrFEzALTKdphT9fK6Gu
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eVjHtKsuCSEaULCdjhJvPpFK40ONr1JEC1Ywp1UYrfBBdKunnbDZqNZL1cFv+IzF4Yj6JO6pOeHi
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1Zpur1GaQRRlYTvzmyWY/AATQDh8JfKObNnDVwXeezFODUG8h5+XL1ZXZQIDAQAB""");
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// A SHA1withRSA signature on an empty input where the digestAlgorithm
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// inside DigestInfo does not have a parameters field.
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byte[] sig = Base64.getMimeDecoder().decode("""
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D1FpiT44WEXlDfYK880bdorLO+e9qJVXZWiBgqs9dfK7lYQwyEt9dL23mbUAKm5TVEj2ZxtHkEvk
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b8oaWkxk069jDTM1RhllPJZkAjeQRbw4gkg4N6wKZz9B/jdSRMNJg/b9QdRYZOHOBxsEHMbUREPV
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DoCOLaxB8eIXX0EWkiE=""");
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Signature s = Signature.getInstance("SHA1withRSA",
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System.getProperty("test.provider.name", "SunRsaSign"));
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s.initVerify(KeyFactory.getInstance("RSA").generatePublic(new X509EncodedKeySpec(key)));
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if (!s.verify(sig)) {
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throw new RuntimeException("Does not verify");
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}
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}
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}
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