rsa-compat.js/lib/rsa-extra.js

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'use strict';
//var crypto = require('crypto');
var forge = require('node-forge');
function binstrToB64(binstr) {
return new Buffer(binstr, 'binary').toString('base64');
}
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function b64ToBinstr(b64) {
return new Buffer(b64, 'b64').toString('binary');
}
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/*
importPemPrivateKey: function(pem) {
var key = forge.pki.privateKeyFromPem(pem);
return {
privateKey: exportPrivateKey(key),
publicKey: exportPublicKey(key)
};
},
importPemCertificate: function(pem) {
return forge.pki.certificateFromPem(pem);
},
privateKeyToPem: function(privateKey) {
var priv = importPrivateKey(privateKey);
return forge.pki.privateKeyToPem(priv);
},
certificateToPem: function(certificate) {
var derCert = base64ToBytes(certificate);
var cert = forge.pki.certificateFromAsn1(forge.asn1.fromDer(derCert));
return forge.pki.certificateToPem(cert);
},
*/
var extrac = module.exports = {
//
// internals
//
_forgeToPrivateJwk: function (keypair) {
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var k = keypair._forge;
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return {
kty: "RSA"
, n: binstrToB64(k.n.toByteArray())
, e: binstrToB64(k.e.toByteArray())
, d: binstrToB64(k.d.toByteArray())
, p: binstrToB64(k.p.toByteArray())
, q: binstrToB64(k.q.toByteArray())
, dp: binstrToB64(k.dP.toByteArray())
, dq: binstrToB64(k.dQ.toByteArray())
, qi: binstrToB64(k.qInv.toByteArray())
};
}
, _forgeToPublicJwk: function (keypair) {
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var k = keypair._forge || keypair._forgePublic;
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return {
kty: "RSA"
, n: binstrToB64(k.n.toByteArray())
, e: binstrToB64(k.e.toByteArray())
};
}
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//
// Import Forge
//
, _forgeImportJwk: require('./rsa-forge')._forgeImportJwk
, _forgeImportPublicJwk: require('./rsa-forge')._forgeImportPublicJwk
, _forgeImportPem: function (keypair) {
keypair._forge = keypair._forge || forge.pki.privateKeyFromPem(keypair.privateKeyPem);
}
, _forgeImportPublicPem: function (keypair) {
keypair._forgePublic = keypair._forgePublic || forge.pki.publicKeyFromPem(keypair.publicKeyPem);
}
, importForge: function (keypair) {
extrac._forgeImportJwk(keypair);
if (keypair.privateKeyPem) {
extrac._forgeImportPem(keypair);
}
if (keypair.publicKeyPem) {
extrac._forgeImportPublicPem(keypair);
}
return keypair;
}
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//
// Export JWK
//
, exportPrivateJwk: function (keypair) {
var hasUrsaPrivate = keypair._ursa && true;
var hasPrivatePem = keypair.privateKeyPem && true;
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var hasForgePrivate = keypair._forge && keypair._forge && true;
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if (keypair.privateKeyJwk) {
return keypair.privateKeyJwk;
}
if (!hasForgePrivate) {
if (hasUrsaPrivate && !hasPrivatePem) {
keypair.privateKeyPem = keypair._ursa.toPrivatePem().toString('ascii');
}
if (keypair.privateKeyPem) {
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extrac._forgeImportPem(keypair);
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}
}
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if (keypair._forge && keypair._forge) {
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return extrac._forgeToPrivateJwk(keypair);
}
throw new Error("None of privateKeyPem, _ursa, _forge, or privateKeyJwk found. No way to export private key Jwk");
}
, exportPublicJwk: function (keypair) {
var hasUrsaPublic = (keypair._ursa || keypair._ursaPublic) && true;
var hasPublicPem = (keypair.privateKeyPem || keypair.publicKeyPem) && true;
var hasForgePublic = keypair._forge && true;
if (keypair.publicKeyJwk) {
return keypair.publicKeyJwk;
}
if (keypair.privateKeyJwk) {
return {
kty: 'RSA'
, n: keypair.privateKeyJwk.n
, e: keypair.privateKeyJwk.e
};
}
if (!hasForgePublic) {
if (hasUrsaPublic && !hasPublicPem) {
keypair.publicKeyPem = (keypair._ursa || keypair._ursaPublic).toPublicPem().toString('ascii');
}
if (keypair.publicKeyPem) {
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extrac._forgeImportPublicPem(keypair);
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}
}
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if (keypair._forge && keypair._forge) {
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return extrac._forgeToPublicJwk(keypair);
}
throw new Error("None of publicKeyPem privateKeyPem, _ursa, _forge, publicKeyJwk, or privateKeyJwk found. No way to export private key Jwk");
}
};