41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
/*
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Copyright 2019 0KIMS association.
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This file is part of websnark (Web Assembly zkSnark Prover).
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websnark is a free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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websnark 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
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with websnark. If not, see <https://www.gnu.org/licenses/>.
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*/
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const bigInt = require("big-integer");
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exports.bigInt2BytesLE = function bigInt2BytesLE(_a, len) {
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const b = Array(len);
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let v = bigInt(_a);
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for (let i=0; i<len; i++) {
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b[i] = v.and(0xFF).toJSNumber();
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v = v.shiftRight(8);
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}
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return b;
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};
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exports.bigInt2U32LE = function bigInt2BytesLE(_a, len) {
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const b = Array(len);
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let v = bigInt(_a);
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for (let i=0; i<len; i++) {
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b[i] = v.and(0xFFFFFFFF).toJSNumber();
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v = v.shiftRight(32);
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}
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return b;
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};
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