51 lines
1.8 KiB
Java
51 lines
1.8 KiB
Java
/*
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* Copyright (c) 2023, 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 8300399
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* @summary EdDSA does not verify when there is no message
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* @run main EmptyMessage
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*/
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import java.security.KeyPairGenerator;
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import java.security.Signature;
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import java.security.spec.NamedParameterSpec;
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public class EmptyMessage {
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public static void main(String[] args) throws Exception {
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var g = KeyPairGenerator.getInstance("EdDSA");
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g.initialize(NamedParameterSpec.ED25519);
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var kp = g.generateKeyPair();
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var ss = Signature.getInstance("EdDSA");
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ss.initSign(kp.getPrivate());
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var sig = ss.sign();
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var ps = Signature.getInstance("EdDSA");
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ps.initVerify(kp.getPublic());
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if (!ps.verify(sig)) {
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throw new RuntimeException();
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}
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}
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}
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