jose
Version:
Universal 'JSON Web Almost Everything' - JWA, JWS, JWE, JWT, JWK with no dependencies
12 lines (11 loc) • 517 B
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const crypto_1 = require("crypto");
const buffer_utils_js_1 = require("../lib/buffer_utils.js");
function cbcTag(aad, iv, ciphertext, macSize, macKey, keySize) {
const macData = buffer_utils_js_1.concat(aad, iv, ciphertext, buffer_utils_js_1.uint64be(aad.length << 3));
const hmac = crypto_1.createHmac(`sha${macSize}`, macKey);
hmac.update(macData);
return hmac.digest().slice(0, keySize >> 3);
}
exports.default = cbcTag;