Online Bcrypt Hash Generator and Checker Tool

Information!

Bcrypt Hash Generator and Checker is an online Tool which uses Bcrypt algorithm to generate hashed text. To hash a text, you can provide number of log rounds, prefix '2a' or '2b' and salt. It also provides a reverse check with the plain text.

Being a 'hashing' (an irreversible) - there's no way to retrieve the original string. Thus makes it an ideal for passwords and authentication. The stored hash gets checked with the original form for its testability or match.

E.g. Original form 'mySecretPasS' and generated hash is '$2b$07$OSqvXWXhe2Swr2vbS4ijvOy.6RhHA8y.pNXkA5cQ9Hro4JWieR17K' with log_rounds(7) and prefix '2b' when checked, it results into 'match'

Refer -

What is bcrypt?

bcrypt is a password-hashing function designed by Niels Provos and David Mazières. It is based on the Blowfish cipher . Besides incorporating a salt to protect against rainbow table attacks, bcrypt is an adaptive function: over time, the iteration count (via log rounds) can be increased to make it slower, so it remains resistant to brute-force search attacks even with increasing computation power.

Typical hashed string looks like:

Do I need to store salt for bcrypt hash, so that program can compare 'generated hash' with 'my plain text password + salt'?

No. The resepective salt (22 chars/128 bit in length) already present in bcrypt generated hash.

Program authenticates a user by calling the api function on the respective 'stored hash' and a given 'plain password'. e.g.
boolean matched = bcrypt.checkpw(plain_password, hashed)

Code/API references:

Developer Tool -kit & other tools:

Developer Tool-kit is a set of online developer tools that help get the results of various functionality on-the-fly and diagnose.

Various tools:

Other info:

Audience Type: Software developers and users
Abstract: Online Utility Tools
Version: v8.0.5
Date published: 2020-07-14
Date modified: 2021-11-28
Publisher: Rajendra Varma
Author: Rajendra Varma

Note - Since none of the user information does get stored on server, it is safe to use these tools