=======================================================================
Checking the password authentication with @default_plugin plugin
=======================================================================

set @default_plugin= @@global.default_authentication_plugin;
CREATE USER 'Tanjotuser1'@'localhost' IDENTIFIED BY 'abc';
CREATE USER 'Tanjotuser2'@'127.0.0.1' IDENTIFIED BY 'abc';
select (select plugin from mysql.user where User='Tanjotuser1' and Host='localhost')=@default_plugin;
(select plugin from mysql.user where User='Tanjotuser1' and Host='localhost')=@default_plugin
1
1 Expected
select (select plugin from mysql.user where User='Tanjotuser2' and Host='127.0.0.1')=@default_plugin;
(select plugin from mysql.user where User='Tanjotuser2' and Host='127.0.0.1')=@default_plugin
1
1 Expected
ERROR 28000: Access denied for user 'Tanjotuser1'@'localhost' (using password: NO)
ERROR 28000: Access denied for user 'Tanjotuser2'@'localhost' (using password: NO)
ERROR 28000: Access denied for user 'Tanjotuser1'@'localhost' (using password: NO)
ERROR 28000: Access denied for user 'Tanjotuser2'@'localhost' (using password: NO)
DROP USER 'Tanjotuser1'@'localhost';
DROP USER 'Tanjotuser2'@'127.0.0.1';


=======================================================================
Checking the password authentication with sha256_password plugin
=======================================================================

CREATE USER 'Tanjotuser1'@'localhost' IDENTIFIED WITH 'sha256_password';
CREATE USER 'Tanjotuser2'@'127.0.0.1' IDENTIFIED WITH 'sha256_password';
select (select plugin from mysql.user where User='Tanjotuser1' and Host='localhost')='sha256_password';
(select plugin from mysql.user where User='Tanjotuser1' and Host='localhost')='sha256_password'
1
1 Expected
select (select plugin from mysql.user where User='Tanjotuser2' and Host='127.0.0.1')='sha256_password';
(select plugin from mysql.user where User='Tanjotuser2' and Host='127.0.0.1')='sha256_password'
1
1 Expected
ERROR 28000: Access denied for user 'Tanjotuser1'@'localhost' (using password: YES)
ERROR 28000: Access denied for user 'Tanjotuser2'@'localhost' (using password: YES)
SET PASSWORD FOR 'Tanjotuser1'@'localhost'='abc';
SET PASSWORD FOR 'Tanjotuser2'@'127.0.0.1'='abc';
ERROR 28000: Access denied for user 'Tanjotuser1'@'localhost' (using password: NO)
ERROR 28000: Access denied for user 'Tanjotuser2'@'localhost' (using password: NO)
ERROR 28000: Access denied for user 'Tanjotuser1'@'localhost' (using password: YES)
ERROR 28000: Access denied for user 'Tanjotuser2'@'localhost' (using password: YES)
DROP USER 'Tanjotuser1'@'localhost';
DROP USER 'Tanjotuser2'@'127.0.0.1';


====================================================================================================
checking the integrity of long password (more than 40 chars) using @default_plugin plugin
====================================================================================================

CREATE USER 'Tanjotuser1'@'localhost' IDENTIFIED BY 'aaaaaaaaaabbbbbbbbbbccccccccccddddddddddeeeeeeeeeeaaaaaaaaaannnnnnnnnnaaaaaaaaaahhhhhhhhhh1111111111gggggggggg2222222222';
CREATE USER 'Tanjotuser2'@'127.0.0.1' IDENTIFIED BY 'aaaaaaaaaabbbbbbbbbbccccccccccddddddddddeeeeeeeeeeaaaaaaaaaannnnnnnnnnaaaaaaaaaahhhhhhhhhh1111111111gggggggggg2222222222';
ERROR 28000: Access denied for user 'Tanjotuser1'@'localhost' (using password: NO)
ERROR 28000: Access denied for user 'Tanjotuser2'@'localhost' (using password: NO)
DROP USER 'Tanjotuser1'@'localhost';
DROP USER 'Tanjotuser2'@'127.0.0.1';


====================================================================================================
checking the integrity of long password (more than 40 chars) using sha256_password plugin
====================================================================================================

CREATE USER 'Tanjotuser1'@'localhost' IDENTIFIED WITH 'sha256_password';
CREATE USER 'Tanjotuser2'@'127.0.0.1' IDENTIFIED WITH 'sha256_password';
SET PASSWORD FOR 'Tanjotuser1'@'localhost'='aaaaaaaaaabbbbbbbbbbccccccccccddddddddddeeeeeeeeeeaaaaaaaaaannnnnnnnnnaaaaaaaaaahhhhhhhhhh1111111111gggggggggg2222222222';
SET PASSWORD FOR 'Tanjotuser2'@'127.0.0.1'='aaaaaaaaaabbbbbbbbbbccccccccccddddddddddeeeeeeeeeeaaaaaaaaaannnnnnnnnnaaaaaaaaaahhhhhhhhhh1111111111gggggggggg2222222222';
ERROR 28000: Access denied for user 'Tanjotuser1'@'localhost' (using password: NO)
ERROR 28000: Access denied for user 'Tanjotuser2'@'localhost' (using password: NO)
DROP USER 'Tanjotuser1'@'localhost';
DROP USER 'Tanjotuser2'@'127.0.0.1';


====================================================================================================
checking the integrity of NULL password using @default_plugin plugin
====================================================================================================

CREATE USER 'Tanjotuser1'@'localhost' IDENTIFIED BY '';
CREATE USER 'Tanjotuser2'@'127.0.0.1' IDENTIFIED BY '';
ERROR 28000: Access denied for user 'Tanjotuser1'@'localhost' (using password: YES)
ERROR 28000: Access denied for user 'Tanjotuser2'@'localhost' (using password: YES)
ERROR 28000: Access denied for user 'Tanjotuser1'@'localhost' (using password: YES)
ERROR 28000: Access denied for user 'Tanjotuser2'@'localhost' (using password: YES)
ERROR 28000: Access denied for user 'Tanjotuser1'@'localhost' (using password: YES)
ERROR 28000: Access denied for user 'Tanjotuser2'@'localhost' (using password: YES)
DROP USER 'Tanjotuser1'@'localhost';
DROP USER 'Tanjotuser2'@'127.0.0.1';


====================================================================================================
checking the integrity of NULL password using sha256_password plugin
====================================================================================================

CREATE USER 'Tanjotuser1'@'localhost' IDENTIFIED WITH 'sha256_password';
CREATE USER 'Tanjotuser2'@'127.0.0.1' IDENTIFIED WITH 'sha256_password';
SET PASSWORD FOR 'Tanjotuser1'@'localhost'='';
SET PASSWORD FOR 'Tanjotuser2'@'127.0.0.1'='';
ERROR 28000: Access denied for user 'Tanjotuser1'@'localhost' (using password: YES)
ERROR 28000: Access denied for user 'Tanjotuser2'@'localhost' (using password: YES)
ERROR 28000: Access denied for user 'Tanjotuser1'@'localhost' (using password: YES)
ERROR 28000: Access denied for user 'Tanjotuser2'@'localhost' (using password: YES)
DROP USER 'Tanjotuser1'@'localhost';
DROP USER 'Tanjotuser2'@'127.0.0.1';


=================================================================================================
checking the combination of Client default_auth=sha256_password and server default_auth=native
=================================================================================================

CREATE USER 'Tanjotuser1'@'localhost' IDENTIFIED WITH 'sha256_password';
CREATE USER 'Tanjotuser2'@'127.0.0.1' IDENTIFIED WITH 'sha256_password';
SET PASSWORD FOR 'Tanjotuser1'@'localhost'='abc';
SET PASSWORD FOR 'Tanjotuser2'@'127.0.0.1'='abc';
GRANT ALL ON *.* TO 'Tanjotuser1'@'localhost';
GRANT ALL ON *.* TO 'Tanjotuser2'@'127.0.0.1';
**** Client default_auth=sha_256_password and server default auth=native
user()	current_user()
Tanjotuser1@localhost	Tanjotuser1@localhost
**** Client default_auth=native and server default auth=native
user()	current_user()
Tanjotuser2@localhost	Tanjotuser2@127.0.0.1
**** Client default_auth=sha_256_password + public key on file.
user()	current_user()
Tanjotuser1@localhost	Tanjotuser1@localhost
DROP USER 'Tanjotuser1'@'localhost';
DROP USER 'Tanjotuser2'@'127.0.0.1';


=================================================================================================
Starting the server with the default authentication mysql_native_password
=================================================================================================

# Restart server with default-authentication-plugin=mysql_native_password;
Creating a user with mysql_native_password plugin
CREATE USER 'Tanjotuser1'@'localhost' IDENTIFIED BY 'abc';
Grant all on *.* to 'Tanjotuser1'@'localhost';
Creating a user with SHA256_password plugin
CREATE USER 'Tanjotuser3'@'localhost' IDENTIFIED WITH 'sha256_password';
set password for 'Tanjotuser3'@'localhost' ='abc';
Grant all on *.* to 'Tanjotuser3'@'localhost';
select (select plugin from mysql.user where User='Tanjotuser1' and Host='localhost')='mysql_native_password';
(select plugin from mysql.user where User='Tanjotuser1' and Host='localhost')='mysql_native_password'
1
1 Expected
select (select plugin from mysql.user where User='Tanjotuser3' and Host='localhost')='sha256_password';
(select plugin from mysql.user where User='Tanjotuser3' and Host='localhost')='sha256_password'
1
1 Expected
DROP USER 'Tanjotuser1'@'localhost';
DROP USER 'Tanjotuser3'@'localhost';


=================================================================================================
Starting the server with the default authentication sha256_password
=================================================================================================

# Restart server with default-authentication-plugin=sha256_password;
Creating a user with mysql_native_password plugin
CREATE USER 'Tanjotuser2'@'localhost' IDENTIFIED WITH 'mysql_native_password';
set password for 'Tanjotuser2'@'localhost' ='abc';
Grant all on *.* to 'Tanjotuser2'@'localhost';
Creating a user with SHA256_password plugin
CREATE USER 'Tanjotuser3'@'localhost' IDENTIFIED by 'abc';
Grant all on *.* to 'Tanjotuser3'@'localhost';
select (select plugin from mysql.user where User='Tanjotuser2' and Host='localhost')='mysql_native_password';
(select plugin from mysql.user where User='Tanjotuser2' and Host='localhost')='mysql_native_password'
1
1 Expected
select (select plugin from mysql.user where User='Tanjotuser3' and Host='localhost')='sha256_password';
(select plugin from mysql.user where User='Tanjotuser3' and Host='localhost')='sha256_password'
1
1 Expected
DROP USER 'Tanjotuser2'@'localhost';
DROP USER 'Tanjotuser3'@'localhost';