1、创建一个用户SYS@orcl1> create user roidba identified by roidba;create user roidba identified by roidba*ERROR at line 1:ORA-28003: password verification for the specified password failedORA-20001: Password same as or similar to user --出现报错，提示密码验证失败。2、查看profileSYS@orcl1> select * from dba_profiles;PROFILE RESOURCE_NAME RESOURCE_TYPE LIMIT COMMON------------------ ------------------------------ ---------------- --------------- ------DEFAULT COMPOSITE_LIMIT KERNEL UNLIMITED NODEFAULT SESSIONS_PER_USER KERNEL UNLIMITED NODEFAULT CPU_PER_SESSION KERNEL UNLIMITED NODEFAULT CPU_PER_CALL KERNEL UNLIMITED NODEFAULT LOGICAL_READS_PER_SESSION KERNEL UNLIMITED NODEFAULT LOGICAL_READS_PER_CALL KERNEL UNLIMITED NODEFAULT IDLE_TIME KERNEL UNLIMITED NODEFAULT CONNECT_TIME KERNEL UNLIMITED NODEFAULT PRIVATE_SGA KERNEL UNLIMITED NODEFAULT FAILED_LOGIN_ATTEMPTS PASSWORD 10 NODEFAULT PASSWORD_LIFE_TIME PASSWORD 180 NODEFAULT PASSWORD_REUSE_TIME PASSWORD UNLIMITED NODEFAULT PASSWORD_REUSE_MAX PASSWORD UNLIMITED NODEFAULT PASSWORD_VERIFY_FUNCTION PASSWORD VERIFY_FUNCTION NODEFAULT PASSWORD_LOCK_TIME PASSWORD 1 NODEFAULT PASSWORD_GRACE_TIME PASSWORD 7 NOORA_STIG_PROFILE COMPOSITE_LIMIT KERNEL DEFAULT NOORA_STIG_PROFILE SESSIONS_PER_USER KERNEL DEFAULT NOORA_STIG_PROFILE CPU_PER_SESSION KERNEL DEFAULT NOORA_STIG_PROFILE CPU_PER_CALL KERNEL DEFAULT NOORA_STIG_PROFILE LOGICAL_READS_PER_SESSION KERNEL DEFAULT NOORA_STIG_PROFILE LOGICAL_READS_PER_CALL KERNEL DEFAULT NOORA_STIG_PROFILE IDLE_TIME KERNEL 15 NOORA_STIG_PROFILE CONNECT_TIME KERNEL DEFAULT NOORA_STIG_PROFILE PRIVATE_SGA KERNEL DEFAULT NOORA_STIG_PROFILE FAILED_LOGIN_ATTEMPTS PASSWORD 3 NOORA_STIG_PROFILE PASSWORD_LIFE_TIME PASSWORD 60 NOORA_STIG_PROFILE PASSWORD_REUSE_TIME PASSWORD 365 NOORA_STIG_PROFILE PASSWORD_REUSE_MAX PASSWORD 10 NOORA_STIG_PROFILE PASSWORD_VERIFY_FUNCTION PASSWORD ORA12C_STRONG_V NOERIFY_FUNCTION --使用了12c密码验证策略ORA_STIG_PROFILE PASSWORD_LOCK_TIME PASSWORD UNLIMITED NOORA_STIG_PROFILE PASSWORD_GRACE_TIME PASSWORD 5 NO32 rows selected.SYS@orcl1>

3、密码验证策略要求

ora12c_strong_verify_function Function Password RequirementsThe ora12c_strong_verify_function function fulfills the Department of Defense Database Security Technical Implementation Guide requirements.This function checks for the following requirements when users create or modify passwords:The password must contain at least 2 upper case characters, 2 lower case characters, 2 numeric characters, and 2 special characters. These special characters are as follows:--要求至少2个大写，两个小写，2个数字，2个特殊字符‘ ~ ! @ # $ % ^ & * ( ) _ - + = { } [ ] \ / < > , . ; ? ' : | (space) The password must differ from the previous password by at least 4 characters.The following internal checks are also applied:The password contains no fewer than nine characters and does not exceed 30 characters.The password does not contain the double-quotation character ("). It can be surrounded by double-quotation marks, however.

4、根据要求重新创建一个用户

SYS@orcl1> create user roidba identified by "FXlv12!@";User created.SYS@orcl1> grant connect to roidba;Grant succeeded.SYS@orcl1> conn roidba/"FXlv12!@"Connected.ROIDBA@orcl1>

5、取消密码复杂度验证

SYS@orcl1> ALTER PROFILE DEFAULT LIMIT PASSWORD_VERIFY_FUNCTION NULL;Profile altered.SYS@orcl1> alter user roidba identified by roidba;User altered.SYS@orcl1>

6、设置密码复杂度验证操作过程

Enabling Password Complexity VerificationThe utlpwdmg.sql script can be customized to enable password complexity verification.Log in to SQL*Plus with administrative privileges.For example:CONNECT SYSTEMEnter password: passwordRun the utlpwdmg.sql script (or your modified version of this script) to create the password complexity functions in the SYS schema.@$ORACLE_HOME/rdbms/admin/utlpwdmg.sqlGrant any users who must use this function the EXECUTE privilege on it.For example:GRANT pmsith EXECUTE ON ora12c_strong_verify_function;In the default profile or the user profile, set the PASSWORD_VERIFY_FUNCTION setting to either the sample password complexity function in the utlpwdmg.sql script, or to your customized function. Use one of the following methods:Log in to SQL*Plus with administrator privileges and use the CREATE PROFILE or ALTER PROFILE statement to enable the function. Ensure that you have the EXECUTE privilege on the function.For example, to update the default profile to use the ora12c_strong_verify_function function:ALTER PROFILE default LIMIT PASSWORD_VERIFY_FUNCTION ora12c_strong_verify_function;