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22 lines
443 B
JavaScript
22 lines
443 B
JavaScript
'use strict';
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const { jsbn: { BigInteger } } = require('node-forge');
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class BigNumber {
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constructor(value = '') {
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this._n = new BigInteger(null);
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this._n.fromInt(value);
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}
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toBEBuffer(length = undefined) {
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const arr = this._n.toByteArray();
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if (length && arr.length > length)
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throw new Error('Number out of range.');
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while (arr.length < length)
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arr.unshift(0);
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return Buffer.from(arr);
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}
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}
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module.exports = BigNumber;
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