1 | /* A table of data supporting modlimb_invert(). |
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2 | |
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3 | THE CONTENTS OF THIS FILE ARE FOR INTERNAL USE AND MAY CHANGE |
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4 | INCOMPATIBLY OR DISAPPEAR IN A FUTURE GNU MP RELEASE. */ |
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5 | |
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6 | /* |
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7 | Copyright 2000 Free Software Foundation, Inc. |
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8 | |
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9 | This file is part of the GNU MP Library. |
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10 | |
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11 | The GNU MP Library is free software; you can redistribute it and/or modify |
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12 | it under the terms of the GNU Lesser General Public License as published by |
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13 | the Free Software Foundation; either version 2.1 of the License, or (at your |
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14 | option) any later version. |
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15 | |
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16 | The GNU MP Library is distributed in the hope that it will be useful, but |
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17 | WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
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18 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public |
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19 | License for more details. |
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20 | |
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21 | You should have received a copy of the GNU Lesser General Public License |
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22 | along with the GNU MP Library; see the file COPYING.LIB. If not, write to |
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23 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
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24 | MA 02111-1307, USA. */ |
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25 | |
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26 | #include "gmp.h" |
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27 | #include "gmp-impl.h" |
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28 | |
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29 | |
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30 | /* modlimb_invert_table[i] is the multiplicative inverse of 2*i+1 mod 256, |
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31 | ie. (modlimb_invert_table[i] * (2*i+1)) % 256 == 1 */ |
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32 | |
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33 | const unsigned char modlimb_invert_table[128] = { |
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34 | 0x01, 0xAB, 0xCD, 0xB7, 0x39, 0xA3, 0xC5, 0xEF, |
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35 | 0xF1, 0x1B, 0x3D, 0xA7, 0x29, 0x13, 0x35, 0xDF, |
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36 | 0xE1, 0x8B, 0xAD, 0x97, 0x19, 0x83, 0xA5, 0xCF, |
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37 | 0xD1, 0xFB, 0x1D, 0x87, 0x09, 0xF3, 0x15, 0xBF, |
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38 | 0xC1, 0x6B, 0x8D, 0x77, 0xF9, 0x63, 0x85, 0xAF, |
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39 | 0xB1, 0xDB, 0xFD, 0x67, 0xE9, 0xD3, 0xF5, 0x9F, |
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40 | 0xA1, 0x4B, 0x6D, 0x57, 0xD9, 0x43, 0x65, 0x8F, |
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41 | 0x91, 0xBB, 0xDD, 0x47, 0xC9, 0xB3, 0xD5, 0x7F, |
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42 | 0x81, 0x2B, 0x4D, 0x37, 0xB9, 0x23, 0x45, 0x6F, |
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43 | 0x71, 0x9B, 0xBD, 0x27, 0xA9, 0x93, 0xB5, 0x5F, |
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44 | 0x61, 0x0B, 0x2D, 0x17, 0x99, 0x03, 0x25, 0x4F, |
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45 | 0x51, 0x7B, 0x9D, 0x07, 0x89, 0x73, 0x95, 0x3F, |
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46 | 0x41, 0xEB, 0x0D, 0xF7, 0x79, 0xE3, 0x05, 0x2F, |
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47 | 0x31, 0x5B, 0x7D, 0xE7, 0x69, 0x53, 0x75, 0x1F, |
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48 | 0x21, 0xCB, 0xED, 0xD7, 0x59, 0xC3, 0xE5, 0x0F, |
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49 | 0x11, 0x3B, 0x5D, 0xC7, 0x49, 0x33, 0x55, 0xFF |
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50 | }; |
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