59 lines
2.7 KiB
JavaScript
59 lines
2.7 KiB
JavaScript
|
"use strict";
|
||
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
||
|
|
exports.calculateJwkThumbprintUri = exports.calculateJwkThumbprint = void 0;
|
||
|
|
const digest_js_1 = require("../runtime/digest.js");
|
||
|
|
const base64url_js_1 = require("../runtime/base64url.js");
|
||
|
|
const errors_js_1 = require("../util/errors.js");
|
||
|
|
const buffer_utils_js_1 = require("../lib/buffer_utils.js");
|
||
|
|
const is_object_js_1 = require("../lib/is_object.js");
|
||
|
|
const check = (value, description) => {
|
||
|
|
if (typeof value !== 'string' || !value) {
|
||
|
|
throw new errors_js_1.JWKInvalid(`${description} missing or invalid`);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
async function calculateJwkThumbprint(jwk, digestAlgorithm) {
|
||
|
|
if (!(0, is_object_js_1.default)(jwk)) {
|
||
|
|
throw new TypeError('JWK must be an object');
|
||
|
|
}
|
||
|
|
digestAlgorithm !== null && digestAlgorithm !== void 0 ? digestAlgorithm : (digestAlgorithm = 'sha256');
|
||
|
|
if (digestAlgorithm !== 'sha256' &&
|
||
|
|
digestAlgorithm !== 'sha384' &&
|
||
|
|
digestAlgorithm !== 'sha512') {
|
||
|
|
throw new TypeError('digestAlgorithm must one of "sha256", "sha384", or "sha512"');
|
||
|
|
}
|
||
|
|
let components;
|
||
|
|
switch (jwk.kty) {
|
||
|
|
case 'EC':
|
||
|
|
check(jwk.crv, '"crv" (Curve) Parameter');
|
||
|
|
check(jwk.x, '"x" (X Coordinate) Parameter');
|
||
|
|
check(jwk.y, '"y" (Y Coordinate) Parameter');
|
||
|
|
components = { crv: jwk.crv, kty: jwk.kty, x: jwk.x, y: jwk.y };
|
||
|
|
break;
|
||
|
|
case 'OKP':
|
||
|
|
check(jwk.crv, '"crv" (Subtype of Key Pair) Parameter');
|
||
|
|
check(jwk.x, '"x" (Public Key) Parameter');
|
||
|
|
components = { crv: jwk.crv, kty: jwk.kty, x: jwk.x };
|
||
|
|
break;
|
||
|
|
case 'RSA':
|
||
|
|
check(jwk.e, '"e" (Exponent) Parameter');
|
||
|
|
check(jwk.n, '"n" (Modulus) Parameter');
|
||
|
|
components = { e: jwk.e, kty: jwk.kty, n: jwk.n };
|
||
|
|
break;
|
||
|
|
case 'oct':
|
||
|
|
check(jwk.k, '"k" (Key Value) Parameter');
|
||
|
|
components = { k: jwk.k, kty: jwk.kty };
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
throw new errors_js_1.JOSENotSupported('"kty" (Key Type) Parameter missing or unsupported');
|
||
|
|
}
|
||
|
|
const data = buffer_utils_js_1.encoder.encode(JSON.stringify(components));
|
||
|
|
return (0, base64url_js_1.encode)(await (0, digest_js_1.default)(digestAlgorithm, data));
|
||
|
|
}
|
||
|
|
exports.calculateJwkThumbprint = calculateJwkThumbprint;
|
||
|
|
async function calculateJwkThumbprintUri(jwk, digestAlgorithm) {
|
||
|
|
digestAlgorithm !== null && digestAlgorithm !== void 0 ? digestAlgorithm : (digestAlgorithm = 'sha256');
|
||
|
|
const thumbprint = await calculateJwkThumbprint(jwk, digestAlgorithm);
|
||
|
|
return `urn:ietf:params:oauth:jwk-thumbprint:sha-${digestAlgorithm.slice(-3)}:${thumbprint}`;
|
||
|
|
}
|
||
|
|
exports.calculateJwkThumbprintUri = calculateJwkThumbprintUri;
|