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

 *

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 *

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

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

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

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

 * accompanied this code).

 *

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

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

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

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import jdk.testlibrary.Asserts;

import java.security.MessageDigest;

import java.util.Arrays;

/**

 * @test

 * @bug 8051408

 * @library /lib/testlibrary

 * @summary testing SHA-512/224 and SHA-512/256.

 */

public class SHA512 {

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

        MessageDigest md;

        // Test vectors obtained from

        // http://csrc.nist.gov/groups/ST/toolkit/documents/Examples/SHA512_224.pdf

        md = MessageDigest.getInstance("SHA-512/224");

        Asserts.assertTrue(Arrays.equals(md.digest("abc".getBytes()),

            xeh("4634270F 707B6A54 DAAE7530 460842E2 0E37ED26 5CEEE9A4 3E8924AA")));

        Asserts.assertTrue(Arrays.equals(md.digest((

                "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn" +

                "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu").getBytes()),

            xeh("23FEC5BB 94D60B23 30819264 0B0C4533 35D66473 4FE40E72 68674AF9")));

        // Test vectors obtained from

        // http://csrc.nist.gov/groups/ST/toolkit/documents/Examples/SHA512_256.pdf

        md = MessageDigest.getInstance("SHA-512/256");

        Asserts.assertTrue(Arrays.equals(md.digest("abc".getBytes()),

            xeh("53048E26 81941EF9 9B2E29B7 6B4C7DAB E4C2D0C6 34FC6D46 E0E2F131 07E7AF23")));

        Asserts.assertTrue(Arrays.equals(md.digest((

                "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn" +

                "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu").getBytes()),

            xeh("3928E184 FB8690F8 40DA3988 121D31BE 65CB9D3E F83EE614 6FEAC861 E19B563A")));

    }

    static byte[] xeh(String in) {

        in = in.replaceAll(" ", "");

        int len = in.length() / 2;

        byte[] out = new byte[len];

        for (int i = 0; i < len; i++) {

            out[i] = (byte)Integer.parseInt(in.substring(i * 2, i * 2 + 2), 16);

        }

        return out;

    }

}