8a199e26f3
...i.e., bignums, numbers, and strings. Also, ensure that if you try to multiply a buffer, it should be exactly 32 bytes. Eventually this "multiply" function will be replaced with a more conventional "mul" function, but not yet.
32 lines
838 B
JavaScript
32 lines
838 B
JavaScript
"use strict";
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var Key = require('./Key');
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var bignum = require('bignum');
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var assert = require('assert');
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var elliptic = require('elliptic');
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var Point = require('../common/Point');
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Point.add = function(p1, p2) {
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var ec = elliptic.curves.secp256k1;
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var ecp1 = ec.curve.point(p1.x, p1.y);
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var ecp2 = ec.curve.point(p2.x, p2.y);
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var ecp3 = ecp1.add(ecp2);
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//var p3 = ec.curve.point(ecp3.x, ecp3.y);
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var p3 = new Point(ecp3.x, ecp3.y);
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return p3;
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};
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Point.multiply = function(p1, x) {
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if (Buffer.isBuffer(x) && x.length !== 32)
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throw new Error('if x is a buffer, it must be 32 bytes')
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var ec = elliptic.curves.secp256k1;
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var ecp1 = ec.curve.point(p1.x, p1.y);
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if (typeof x === 'string')
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x = new bignum(x);
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var ecp = ecp1.mul(x);
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var p = new Point(ecp.x, ecp.y);
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return p;
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};
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module.exports = (Point);
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