src/jdk.crypto.ec/share/native/libsunec/impl/mplogic.h
author erikj
Tue, 12 Sep 2017 19:03:39 +0200
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parent 25859 jdk/src/jdk.crypto.ec/share/native/libsunec/impl/mplogic.h@3317bb8137f4
permissions -rw-r--r--
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/*
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 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
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 * Use is subject to license terms.
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2.1 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public License
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 * along with this library; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin Street, 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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 *
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 * The Original Code is the MPI Arbitrary Precision Integer Arithmetic library.
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 *
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 * The Initial Developer of the Original Code is
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 * Michael J. Fromberger.
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 * Portions created by the Initial Developer are Copyright (C) 1998
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 * the Initial Developer. All Rights Reserved.
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 *
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 * Contributor(s):
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 *
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 *********************************************************************** */
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/*  Bitwise logical operations on MPI values */
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#ifndef _MPLOGIC_H
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#define _MPLOGIC_H
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/* $Id: mplogic.h,v 1.7 2004/04/27 23:04:36 gerv%gerv.net Exp $ */
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#include "mpi.h"
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/*
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  The logical operations treat an mp_int as if it were a bit vector,
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  without regard to its sign (an mp_int is represented in a signed
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  magnitude format).  Values are treated as if they had an infinite
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  string of zeros left of the most-significant bit.
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 */
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/* Parity results                    */
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#define MP_EVEN       MP_YES
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#define MP_ODD        MP_NO
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/* Bitwise functions                 */
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mp_err mpl_not(mp_int *a, mp_int *b);            /* one's complement  */
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mp_err mpl_and(mp_int *a, mp_int *b, mp_int *c); /* bitwise AND       */
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mp_err mpl_or(mp_int *a, mp_int *b, mp_int *c);  /* bitwise OR        */
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mp_err mpl_xor(mp_int *a, mp_int *b, mp_int *c); /* bitwise XOR       */
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/* Shift functions                   */
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mp_err mpl_rsh(const mp_int *a, mp_int *b, mp_digit d);   /* right shift    */
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mp_err mpl_lsh(const mp_int *a, mp_int *b, mp_digit d);   /* left shift     */
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/* Bit count and parity              */
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mp_err mpl_num_set(mp_int *a, int *num);         /* count set bits    */
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mp_err mpl_num_clear(mp_int *a, int *num);       /* count clear bits  */
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mp_err mpl_parity(mp_int *a);                    /* determine parity  */
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/* Get & Set the value of a bit */
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mp_err mpl_set_bit(mp_int *a, mp_size bitNum, mp_size value);
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mp_err mpl_get_bit(const mp_int *a, mp_size bitNum);
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mp_err mpl_get_bits(const mp_int *a, mp_size lsbNum, mp_size numBits);
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mp_err mpl_significant_bits(const mp_int *a);
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#endif /* _MPLOGIC_H */