crypto-pro-js/src/api/createHash.ts

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import { _afterPluginsLoaded } from '../helpers/_afterPluginsLoaded';
import { _extractMeaningfulErrorMessage } from '../helpers/_extractMeaningfulErrorMessage';
import { __cadesAsyncToken__, __createCadesPluginObject__, _generateCadesFn } from '../helpers/_generateCadesFn';
type Algorithm =
| 'GOST_3411'
| 'GOST_3411_2012_256'
| 'GOST_3411_2012_512'
| 'GOST_3411_HMAC'
| 'GOST_3411_2012_256_HMAC'
| 'GOST_3411_2012_512_HMAC';
/**
* Создает хэш сообщения по ГОСТ Р 34.11
* https://ru.wikipedia.org/wiki/%D0%A1%D1%82%D1%80%D0%B8%D0%B1%D0%BE%D0%B3_(%D1%85%D0%B5%D1%88-%D1%84%D1%83%D0%BD%D0%BA%D1%86%D0%B8%D1%8F)
*
* @param unencryptedMessage - сообщение для хеширования
* @param algorithm - один из алгоритмов хеширования:
* GOST_3411
* GOST_3411_2012_256
* GOST_3411_2012_512 - по умолчанию
* GOST_3411_HMAC
* GOST_3411_2012_256_HMAC
* GOST_3411_2012_512_HMAC
*
* @returns хэш
*/
export const createHash = _afterPluginsLoaded(
async (unencryptedMessage: string | ArrayBuffer, algorithm: Algorithm = 'GOST_3411_2012_512'): Promise<string> => {
const { cadesplugin } = window;
return eval(
_generateCadesFn(function createHash(): string {
const cadesHashedData = __cadesAsyncToken__ + __createCadesPluginObject__('CAdESCOM.HashedData');
let messageBase64;
let hash;
try {
messageBase64 = Buffer.from(unencryptedMessage).toString('base64');
} catch (error) {
console.error(error);
throw new Error('Ошибка при преобразовании сообщения в Base64');
}
try {
void (
__cadesAsyncToken__ +
cadesHashedData.propset_Algorithm(cadesplugin['CADESCOM_HASH_ALGORITHM_CP_' + algorithm])
);
void (__cadesAsyncToken__ + cadesHashedData.propset_DataEncoding(cadesplugin.CADESCOM_BASE64_TO_BINARY));
void (__cadesAsyncToken__ + cadesHashedData.Hash(messageBase64));
} catch (error) {
console.error(error);
throw new Error(_extractMeaningfulErrorMessage(error) || 'Ошибка при инициализации хэширования');
}
try {
hash = __cadesAsyncToken__ + cadesHashedData.Value;
} catch (error) {
console.error(error);
throw new Error(_extractMeaningfulErrorMessage(error) || 'Ошибка при создании хэша');
}
return hash;
}),
);
},
);