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Текущая директория: /var/www/bitcardoApp/node_modules/ethers/lib.commonjs/crypto
Просмотр файла: hmac.js
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.computeHmac = void 0;
/**
* An **HMAC** enables verification that a given key was used
* to authenticate a payload.
*
* See: [[link-wiki-hmac]]
*
* @_subsection: api/crypto:HMAC [about-hmac]
*/
const crypto_js_1 = require("./crypto.js");
const index_js_1 = require("../utils/index.js");
let locked = false;
const _computeHmac = function (algorithm, key, data) {
return (0, crypto_js_1.createHmac)(algorithm, key).update(data).digest();
};
let __computeHmac = _computeHmac;
/**
* Return the HMAC for %%data%% using the %%key%% key with the underlying
* %%algo%% used for compression.
*
* @example:
* key = id("some-secret")
*
* // Compute the HMAC
* computeHmac("sha256", key, "0x1337")
* //_result:
*
* // To compute the HMAC of UTF-8 data, the data must be
* // converted to UTF-8 bytes
* computeHmac("sha256", key, toUtf8Bytes("Hello World"))
* //_result:
*
*/
function computeHmac(algorithm, _key, _data) {
const key = (0, index_js_1.getBytes)(_key, "key");
const data = (0, index_js_1.getBytes)(_data, "data");
return (0, index_js_1.hexlify)(__computeHmac(algorithm, key, data));
}
exports.computeHmac = computeHmac;
computeHmac._ = _computeHmac;
computeHmac.lock = function () { locked = true; };
computeHmac.register = function (func) {
if (locked) {
throw new Error("computeHmac is locked");
}
__computeHmac = func;
};
Object.freeze(computeHmac);
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