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

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'use strict';
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function binstrToB64Url(binstr) {
return new Buffer(binstr, 'binary').toString('base64')
.replace(/[+]/g, "-").replace(/\//g, "_").replace(/=/g,"");
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}
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var extrac = module.exports = {
//
// internals
//
_forgeToPrivateJwk: function (keypair) {
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var k = keypair._forge;
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return {
kty: "RSA"
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, n: binstrToB64Url(k.n.toByteArray())
, e: binstrToB64Url(k.e.toByteArray())
, d: binstrToB64Url(k.d.toByteArray())
, p: binstrToB64Url(k.p.toByteArray())
, q: binstrToB64Url(k.q.toByteArray())
, dp: binstrToB64Url(k.dP.toByteArray())
, dq: binstrToB64Url(k.dQ.toByteArray())
, qi: binstrToB64Url(k.qInv.toByteArray())
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};
}
, _forgeToPublicJwk: function (keypair) {
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var k = keypair._forge || keypair._forgePublic;
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return {
kty: "RSA"
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, n: binstrToB64Url(k.n.toByteArray())
, e: binstrToB64Url(k.e.toByteArray())
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};
}
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//
// Import Forge
//
, _forgeImportJwk: require('./rsa-forge')._forgeImportJwk
, _forgeImportPublicJwk: require('./rsa-forge')._forgeImportPublicJwk
, _forgeImportPem: require('./rsa-forge')._forgeImportPem
, _forgeImportPublicPem: require('./rsa-forge')._forgeImportPublicPem
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, 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;
var hasForgePrivate = 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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}
}
if (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._forgePublic) {
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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");
}
};