1 /*

     2  * Copyright 2000 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @bug 4371801

    27  * @summary check that generateCertificates() returns an empty

    28  *      Collection when the input stream contains an encoded

    29  *      PKCS #7 SignedData object with no certificates.

    30  */

    31 

    32 import java.io.ByteArrayInputStream;

    33 import java.security.cert.CertificateFactory;

    34 import java.util.Collection;

    35 

    36 public class GenerateCertificatesEmptyCollection {

    37 

    38     public static void main(String[] args) throws Exception {

    39         /*

    40          * create an empty SignedData content type in ASN.1

    41          * as defined in PKCS#7

    42          */

    43         byte[] b = { 0x30, 0x23,

    44                      /* contentInfo ::= signedData */

    45                      0x06, 0x09, 0x2A, (byte)0x86, 0x48,

    46                      (byte)0x86, (byte)0xF7, 0x0D,

    47                      0x01, 0x07, 0x02,

    48                      0x00, 0x16,

    49                      0x30, 0x14,                /* SignedData */

    50                      0x02, 0x01, 0x01,          /* version */

    51                      0x31, 0x00,                /* digestAlgorithms */

    52                      0x30, 0x0B,                /* contentInfo ::= data */

    53                      0x06, 0x09, 0x2A, (byte)0x86, 0x48,

    54                      (byte)0x86, (byte)0xF7, 0x0D,

    55                      0x01, 0x07, 0x01,

    56                      /* certificates are absent */

    57                      0x31, 0x00                 /* signerInfos */

    58                    };

    59 

    60         CertificateFactory cf = CertificateFactory.getInstance( "X509", "SUN");

    61         Collection c = cf.generateCertificates( new ByteArrayInputStream(b));

    62         if (!c.isEmpty())

    63             throw new Exception("CertificateFactory.generateCertificates() "

    64                 + "did not return an empty Collection");

    65     }

    66 }