[FIX] Using inbuilt crypto instead of js-sha256

[sidmohanty11]

Fixes #154 Will resolve this issue also.

Testing

An example testing both modules gives the same result. So, it won't hamper anything.

[lgtm-com[bot]]

This pull request introduces 1 alert when merging 1e434a18e2274f0b8eac6be7d10d62ce1b82edd0 into 454b4ba784095057b8de862eb99340311b672e15 - view on LGTM.com

new alerts:

• 1 for Use of password hash with insufficient computational effort

[sidmohanty11]

@sampaiodiego @djorkaeffalexandre please take a look. This resolves an important error message.