Introduction

What is Bcrypt?

Bcrypt A gem that provides a function for hashing passwords.

The hash of bcrypt cannot be decrypted. It is described in the gemfile from the beginning and can be used by removing the hash (#).

`Gemfile`


# gem 'bcrypt', '~> 3.1.7'

↓ Remove the hash (#) and execute ** bundle install **.

`Gemfile`


gem 'bcrypt', '~> 3.1.7'

What you can do with Bcrypt installed

-The has_secure_password method can be used. ・ The authenticate method can be used

The following articles explain the two methods. [Ruby on Rails] about has_secure_password https://qiita.com/iittaa/items/71ac74c0672c77f5723a

Bcrypt::password.create("○○○○") Returns a hashed value of a character string (value in ○○○○).

:001:0> BCrypt::Password.create("foobar")
=> "$2a$12$W0qW0H5M2YRx2kyGdlBeMOS5cK11hbF8sT4.oKgWF6Aq43E6bjr0C"

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