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113 lignes
2.1 KiB
113 lignes
2.1 KiB
'use strict';
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var native = module.exports;
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// XXX provided by caller: import, export
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var EC = native;
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// TODO SSH
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native.generate = function(opts) {
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return Promise.resolve().then(function() {
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var typ = 'ec';
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var format = opts.format;
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var encoding = opts.encoding;
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var priv;
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var pub = 'spki';
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if (!format) {
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format = 'jwk';
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}
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if (-1 !== ['spki', 'pkcs8', 'ssh'].indexOf(format)) {
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format = 'pkcs8';
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}
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if ('pem' === format) {
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format = 'sec1';
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encoding = 'pem';
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} else if ('der' === format) {
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format = 'sec1';
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encoding = 'der';
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}
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if ('jwk' === format || 'json' === format) {
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format = 'jwk';
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encoding = 'json';
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} else {
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priv = format;
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}
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if (!encoding) {
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encoding = 'pem';
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}
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if (priv) {
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priv = { type: priv, format: encoding };
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pub = { type: pub, format: encoding };
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} else {
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// jwk
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priv = { type: 'sec1', format: 'pem' };
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pub = { type: 'spki', format: 'pem' };
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}
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return new Promise(function(resolve, reject) {
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return require('crypto').generateKeyPair(
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typ,
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{
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namedCurve: opts.crv || opts.namedCurve || 'P-256',
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privateKeyEncoding: priv,
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publicKeyEncoding: pub
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},
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function(err, pubkey, privkey) {
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if (err) {
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reject(err);
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}
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resolve({
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private: privkey,
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public: pubkey
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});
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}
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);
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}).then(function(keypair) {
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if ('jwk' === format) {
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return Promise.all([
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native.import({
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pem: keypair.private,
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format: priv.type
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}),
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native.import({
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pem: keypair.public,
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format: pub.type,
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public: true
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})
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]).then(function(pair) {
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return {
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private: pair[0],
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public: pair[1]
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};
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});
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}
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if ('ssh' !== opts.format) {
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return keypair;
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}
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return native
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.import({
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pem: keypair.public,
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format: format,
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public: true
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})
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.then(function(jwk) {
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return EC.export({
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jwk: jwk,
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format: opts.format,
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public: true
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}).then(function(pub) {
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return {
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private: keypair.private,
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public: pub
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};
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});
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});
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});
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});
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};
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