119 lines
2.7 KiB
JavaScript
119 lines
2.7 KiB
JavaScript
'use strict';
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var ursa = require('ursa');
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function notToJson() {
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return undefined;
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}
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var ursac = module.exports = {
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//
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// to components
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//
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_privateJwkToComponents: function (jwk) {
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var components = [];
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[ 'n', 'e', 'p', 'q', 'dp', 'dq', 'qi', 'd' ].forEach(function (key) {
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components.push(new Buffer(jwk[key], 'base64'));
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});
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return components;
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}
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, _publicJwkToComponents: function (jwk) {
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var components = [];
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[ 'n', 'e' ].forEach(function (key) {
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components.push(new Buffer(jwk[key], 'base64'));
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});
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return components;
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}
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//
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// Generate New Keypair
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//
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, generateKeypair: function (bitlen, exp, options, cb) {
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var keypair = ursa.generatePrivateKey(bitlen || 2048, exp || 65537);
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keypair.toJSON = notToJson;
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cb(null, {
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_ursa: keypair
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});
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}
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//
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// Export Public / Private PEMs
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//
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, exportPrivatePem: function (keypair) {
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if (keypair.privateKeyPem) {
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return keypair.privateKeyPem;
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}
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if (keypair._ursa) {
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return keypair._ursa.toPrivatePem().toString('ascii');
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}
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if (keypair.privateKeyJwk) {
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keypair._ursa = ursa.createPrivateKeyFromComponents.apply(
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ursa
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, ursac._privateJwkToComponents(keypair.privateKeyJwk)
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);
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keypair._ursa.toJSON = notToJson;
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return keypair._ursa.toPrivatePem().toString('ascii');
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}
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throw new Error("None of privateKeyPem, _ursa, or privateKeyJwk found. No way to export private key PEM");
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}
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, exportPublicPem: function (keypair) {
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if (keypair.publicKeyPem) {
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return keypair.publicKeyPem;
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}
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if (keypair._ursa || keypair._ursaPublic) {
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return (keypair._ursa || keypair._ursaPublic).toPublicPem().toString('ascii');
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}
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if (keypair.publicKeyJwk) {
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keypair._ursaPublic = ursa.createPublicKeyFromComponents.apply(
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ursa
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, ursac._publicJwkToComponents(keypair.publicKeyJwk)
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);
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keypair._ursaPublic.toJSON = notToJson;
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return keypair._ursa.toPublicPem().toString('ascii');
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}
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if (keypair.privateKeyJwk) {
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keypair._ursa = ursa.createPrivateKeyFromComponents.apply(
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ursa
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, ursac._privateJwkToComponents(keypair.privateKeyJwk)
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);
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keypair._ursa.toJSON = notToJson;
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return keypair._ursa.toPublicPem().toString('ascii');
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}
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if (keypair.privateKeyPem) {
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keypair._ursa = ursa.createPrivateKey(keypair.privateKeyPem);
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keypair._ursa.toJSON = notToJson;
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return keypair._ursa.toPublicPem().toString('ascii');
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}
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throw new Error("None of publicKeyPem, _ursa, publicKeyJwk, privateKeyPem, or privateKeyJwk found. No way to export public key PEM");
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}
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//, exportPrivateKeyJwk: NOT IMPLEMENTED HERE
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//, exportPublicKeyJwk: NOT IMPLEMENTED HERE
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};
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