// Copyright (c) Microsoft Corporation. All rights reserved.

// Licensed under the MIT License.

'use strict';

// tslint:disable: no-any

import { createHash } from 'crypto';

import { injectable } from 'inversify';

import { traceError } from './logger';

import { ICryptoUtils, IHashFormat } from './types';

/**

* Implements tools related to cryptography

*/

@injectable()

export class CryptoUtils implements ICryptoUtils {

public createHash<E extends keyof IHashFormat>(data: string, hashFormat: E): IHashFormat[E] {

const hash = createHash('sha512').update(data).digest('hex');

if (hashFormat === 'number') {

const result = parseInt(hash, 16);

if (isNaN(result)) {

traceError(`Number hash for data '${data}' is NaN`);

}

return result as any;

}

return hash as any;

}

}