suzanne.soy/fork-openpgpjs
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add RSA keygen example using WebCrypto Api

Browse Source
This commit is contained in:
Tankred Hase 2014-09-29 22:00:29 +02:00
parent bbe174828f
commit 15edf09972
1 changed files with 60 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

57
src/crypto/public_key/rsa.js
View File

@ -134,6 +134,63 @@ function RSA() {
// Generate a new random private key B bits long, using public expt E
function generate(B, E) {
//
// Web Crypto RSA keygen proposal example
//
if (typeof window !== 'undefined' && window.crypto && window.crypto.subtle) {
var keyGenOpt = {
name: 'RSASSA-PKCS1-v1_5',
modulusLength: B, // the specified keysize in bits
publicExponent: new Uint8Array([0x01, 0x00, 0x01]), // Equivalent to 65537, TODO: use provided argument E
hash: {
name: 'SHA-256' // not required for actual RSA keys, but for crypto api 'sign' and 'verifiy'
}
};
var extractable = true; // make generated key extractable
window.crypto.subtle.generateKey(keyGenOpt, extractable, ['sign', 'verify'])
.then(onGenerated)
.then(onExported);
}
function onGenerated(key) {
// export the generated keys as JsonWebKey (JWK)
// https://tools.ietf.org/html/draft-ietf-jose-json-web-key-33
var p1 = window.crypto.subtle.exportKey('jwk', key.privateKey);
var p2 = window.crypto.subtle.exportKey('jwk', key.publicKey);
return window.Promise.all([p1, p2]);
}
function onExported(exported) {
// Exported JWK has the following encoded parameters: n, p, q, qi, ...
var privKey = exported[0];
var pubKey = exported[1];
console.log('Exported private key: ', privKey);
console.log('Exported public key: ', pubKey);
var d = privKey.d;
var dp = privKey.dp;
var dq = privKey.dq;
var e = privKey.e;
var n = privKey.n;
var p = privKey.p;
var q = privKey.q;
var qi = privKey.qi;
// TODO: map JWK parameters to local BigInteger type system?
// TODO: add async style callback
}
//
// JS code
//
var key = new keyObject();
var rng = new SecureRandom();
var qs = B >> 1;