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Cleanup promise error handling

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This commit is contained in:
Tankred Hase 2014-10-01 08:40:26 +02:00
parent 0af12b81a3
commit e6f66b9039
1 changed files with 8 additions and 11 deletions
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19
src/crypto/public_key/rsa.js
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@ -152,26 +152,19 @@ function RSA() {
}
};
var extractable = true; // make generated key extractable
window.crypto.subtle.generateKey(keyGenOpt, extractable, ['sign', 'verify'])
.then(onGenerated, onError)
.then(onExported, onError);
var gen = window.crypto.subtle.generateKey(keyGenOpt, true, ['sign', 'verify']);
gen.then(exportKey).then(decodeKey).catch(onError);
return;
}
function onError() {
callback(new Error('Generating key failed!'));
}
function onGenerated(key) {
function exportKey(key) {
// export the generated keys as JsonWebKey (JWK)
// https://tools.ietf.org/html/draft-ietf-jose-json-web-key-33
return window.crypto.subtle.exportKey('jwk', key.privateKey);
}
function onExported(jwk) {
function decodeKey(jwk) {
// map JWK parameters to local BigInteger type system
var key = new keyObject();
key.n = toBigInteger(jwk.n);
@ -190,6 +183,10 @@ function RSA() {
callback(null, key);
}
function onError() {
callback(new Error('Generating key failed!'));
}
//
// JS code
//