パスワードが"hoge"の場合
ex: password
"hoge"
BCrypt::Password.create でつくる
$ rails console irb(main):001:0> p BCrypt::Password.create("hoge") "$2a$10$aAK/viOEQ9wzE6Lza6kYQeW3MQpin6bzAefHjOlBpTojBH8d915RO" => "$2a$10$aAK/viOEQ9wzE6Lza6kYQeW3MQpin6bzAefHjOlBpTojBH8d915RO"
one: encrypted_password: "$2a$10$yCdUgb7CzKi77qZzhnFFYuJhmBJ5MncfOeINwmzfSFbp9BlBnMCDG"