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oauth3.js
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added unencrypted public key to the localStorage

This commit is contained in:
tigerbot 2017-03-07 14:42:02 -07:00
parent 9ec66a10b2
commit 68cecb7c96
1 changed files with 42 additions and 32 deletions
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74
oauth3.issuer.mock.js
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@ -49,36 +49,45 @@
};
OAUTH3.crypto._createKey = function (ppid) {
var ecdsaPromise, kekPromise;
var kekPromise, ecdsaPromise;
var salt = window.crypto.getRandomValues(new Uint8Array(16));
ecdsaPromise = window.crypto.subtle.generateKey({name: 'ECDSA', namedCurve: 'P-256'}, true, ['sign', 'verify'])
.then(function (key) { return window.crypto.subtle.exportKey('jwk', key.privateKey); })
.then(function (jwk) {
return OAUTH3.crypto.fingerprintJWK(jwk).then(function (kid) {
delete jwk.ext;
delete jwk.key_ops;
jwk.alg = 'ES256';
jwk.kid = kid;
return OAUTH3.PromiseA.resolve(jwk);
});
});
kekPromise = window.crypto.subtle.importKey('raw', OAUTH3.utils.binaryStringToBuffer(ppid), {name: 'PBKDF2'}, false, ['deriveKey'])
.then(function (key) {
var opts = {name: 'PBKDF2', salt: salt, iterations: 8192, hash: {name: 'SHA-256'}};
return window.crypto.subtle.deriveKey(opts, key, {name: 'AES-GCM', length: 256}, false, ['encrypt']);
});
return OAUTH3.PromiseA.all([ecdsaPromise, kekPromise]).then(function (keys) {
var jwkBuf = OAUTH3.utils.binaryStringToBuffer(JSON.stringify(keys[0]));
var iv = window.crypto.getRandomValues(new Uint8Array(12));
return window.crypto.subtle.encrypt({name: 'AES-GCM', iv: iv}, keys[1], jwkBuf).then(function (encrypted) {
ecdsaPromise = window.crypto.subtle.generateKey({name: 'ECDSA', namedCurve: 'P-256'}, true, ['sign', 'verify'])
.then(function (keyPair) {
function tweakJWK(jwk) {
return OAUTH3.crypto.fingerprintJWK(jwk).then(function (kid) {
delete jwk.ext;
jwk.alg = 'ES256';
jwk.kid = kid;
return jwk;
});
}
return OAUTH3.PromiseA.all([
window.crypto.subtle.exportKey('jwk', keyPair.privateKey).then(tweakJWK)
, window.crypto.subtle.exportKey('jwk', keyPair.publicKey).then(tweakJWK)
]).then(function (jwkPair) {
return {
kid: keys[0].kid
, key: OAUTH3._base64.btoa(OAUTH3.utils.bufferToBinaryString(encrypted))
, salt: OAUTH3._base64.btoa(OAUTH3.utils.bufferToBinaryString(salt))
, iv: OAUTH3._base64.btoa(OAUTH3.utils.bufferToBinaryString(iv))
privateKey: jwkPair[0]
, publicKey: jwkPair[1]
};
});
});
return OAUTH3.PromiseA.all([kekPromise, ecdsaPromise]).then(function (keys) {
var jwkBuf = OAUTH3.utils.binaryStringToBuffer(JSON.stringify(keys[1].privateKey));
var iv = window.crypto.getRandomValues(new Uint8Array(12));
return window.crypto.subtle.encrypt({name: 'AES-GCM', iv: iv}, keys[0], jwkBuf).then(function (encrypted) {
return {
publicKey: keys[1].publicKey
, privateKey: OAUTH3._base64.btoa(OAUTH3.utils.bufferToBinaryString(encrypted))
, salt: OAUTH3._base64.btoa(OAUTH3.utils.bufferToBinaryString(salt))
, iv: OAUTH3._base64.btoa(OAUTH3.utils.bufferToBinaryString(iv))
};
});
});
@ -86,7 +95,7 @@
OAUTH3.crypto._decryptKey = function (ppid, storedObj) {
var salt = OAUTH3.utils.binaryStringToBuffer(OAUTH3._base64.atob(storedObj.salt));
var encJwk = OAUTH3.utils.binaryStringToBuffer(OAUTH3._base64.atob(storedObj.key));
var encJwk = OAUTH3.utils.binaryStringToBuffer(OAUTH3._base64.atob(storedObj.privateKey));
var iv = OAUTH3.utils.binaryStringToBuffer(OAUTH3._base64.atob(storedObj.iv));
return window.crypto.subtle.importKey('raw', OAUTH3.utils.binaryStringToBuffer(ppid), {name: 'PBKDF2'}, false, ['deriveKey'])
@ -100,7 +109,12 @@
.then(OAUTH3.utils.bufferToBinaryString)
.then(JSON.parse)
.then(function (jwk) {
return window.crypto.subtle.importKey('jwk', jwk, {name: 'ECDSA', namedCurve: jwk.crv}, false, ['sign']);
return window.crypto.subtle.importKey('jwk', jwk, {name: 'ECDSA', namedCurve: jwk.crv}, false, ['sign'])
.then(function (key) {
key.kid = jwk.kid;
key.alg = jwk.alg;
return key;
});
});
};
@ -113,7 +127,7 @@
if (window.localStorage.getItem(name) === null) {
promise = OAUTH3.crypto._createKey(ppid).then(function (key) {
window.localStorage.setItem(name, JSON.stringify(key));
return OAUTH3.resolve(key);
return key;
});
} else {
promise = OAUTH3.PromiseA.resolve(JSON.parse(window.localStorage.getItem(name)));
@ -127,19 +141,15 @@
OAUTH3.crypto._signPayload = function (payload) {
return OAUTH3.crypto._getKey('some PPID').then(function (key) {
var header = {type: 'jwt', alg: 'ES256'};
var header = {type: 'JWT', alg: key.alg, kid: key.kid};
var input = [
OAUTH3._base64.encodeUrlSafe(JSON.stringify(header, null))
, OAUTH3._base64.encodeUrlSafe(JSON.stringify(payload, null))
].join('.');
return window.crypto.subtle.sign(
{name: 'ECDSA', hash: {name: 'SHA-256'}}
, key
, OAUTH3.utils.binaryStringToBuffer(input)
).then(function (signature) {
var base64Sig = OAUTH3._base64.encodeUrlSafe(OAUTH3.utils.bufferToBinaryString(signature));
return OAUTH3.PromiseA.resolve(input + '.' + base64Sig);
return window.crypto.subtle.sign({name: 'ECDSA', hash: {name: 'SHA-256'}}, key, OAUTH3.utils.binaryStringToBuffer(input))
.then(function (signature) {
return input + '.' + OAUTH3._base64.encodeUrlSafe(OAUTH3.utils.bufferToBinaryString(signature));
});
});
};