57 lines
1.3 KiB
JavaScript
57 lines
1.3 KiB
JavaScript
/*!
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* pk.js - public key algorithms for bcoin
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* Copyright (c) 2016-2017, Christopher Jeffrey (MIT License).
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* https://github.com/bcoin-org/bcoin
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*/
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'use strict';
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/**
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* @module bip70/pk
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*/
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const digest = require('bcrypto/lib/digest');
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const rsa = require('bcrypto/lib/rsa');
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const ecdsa = require('bcrypto/lib/ecdsa');
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/**
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* Verify signature with public key.
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* @param {String} hash - Hash algorithm.
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* @param {Buffer} msg
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* @param {Buffer} sig
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* @param {Object} key
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* @returns {Boolean}
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*/
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exports.verify = function verify(hash, msg, sig, key) {
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hash = digest.get(hash);
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switch (key.alg) {
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case 'rsa':
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return rsa.verify(hash, msg, sig, key.data);
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case 'ecdsa':
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return ecdsa.verify(key.curve, hash, msg, sig, key.data);
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default:
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throw new Error('Unsupported algorithm.');
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}
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};
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/**
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* Sign message with private key.
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* @param {String} hash - Hash algorithm.
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* @param {Buffer} msg
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* @param {Object} key
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* @returns {Buffer}
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*/
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exports.sign = function sign(hash, msg, key) {
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hash = digest.get(hash);
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switch (key.alg) {
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case 'rsa':
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return rsa.sign(hash, msg, key.data);
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case 'ecdsa':
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return ecdsa.sign(key.curve, hash, msg, key.data);
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default:
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throw new Error('Unsupported algorithm.');
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}
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};
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