/*
* Copyright (c) 2018 Zippie Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
/**
* @module zippie-utils/signers
*/
const mod = require('secp256k1')
/**
*
* @param {*} key
*/
function secp256k1 (key) {
key = (typeof key === 'string' ? Buffer.from(key, 'hex') : key)
return function (digest) {
const { signature, recovery } = mod.sign(digest, key)
return { signature: signature.toString('hex'), recovery }
}
}
/**
*
* @param {*} vault
* @param {*} derive
*/
function vault (vault, derive) {
return function (digest) {
const { signature, recovery } = vault.secp256k1.sign(derive, digest.toString('hex'))
return { signature, recovery }
}
}
module.exports = { secp256k1, vault }