创建用户时的密码校验问题（r2第34天)

今天需要在测试环境中做一些性能测试，为了不影响原有的数据，准备创建一个临时的schema。但是创建的时候报了如下的错误。

SQL> create user mig_perf identified by mig_perf;

create user mig_perf identified by mig_perf

*

ERROR at line 1:

ORA-28003: password verification for the specified password failed

ORA-20002: Password same as or similar to user

第一感觉就是开启了密码的校验，11g里面有一个新特性的关于密码的大小写敏感的，会不会有关联呢。似乎有些牵强，但是目前是false选项，表示不对大小写敏感。

SQL> show parameter sen

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

sec_case_sensitive_logon boolean FALSE

如果还有问题，就需要从profie的角度入手了，比如登录密码超过10次，账户就会锁定，这些都是在profile里面配置的。

来看看能得到什么信息。

select *from dba_profiles order by profile;

SQL> /

PROFILE RESOURCE_NAME RESOURCE LIMIT

------------------------------ -------------------------------- -------- ----------------------------------------

DBAMON_PF1 COMPOSITE_LIMIT KERNEL UNLIMITED

DBAMON_PF1 SESSIONS_PER_USER KERNEL 10

DBAMON_PF1 CPU_PER_SESSION KERNEL UNLIMITED

DBAMON_PF1 CPU_PER_CALL KERNEL UNLIMITED

DBAMON_PF1 LOGICAL_READS_PER_SESSION KERNEL UNLIMITED

DBAMON_PF1 LOGICAL_READS_PER_CALL KERNEL UNLIMITED

DBAMON_PF1 IDLE_TIME KERNEL UNLIMITED

DBAMON_PF1 CONNECT_TIME KERNEL UNLIMITED

DBAMON_PF1 PRIVATE_SGA KERNEL DEFAULT

DBAMON_PF1 FAILED_LOGIN_ATTEMPTS PASSWORD 10

DBAMON_PF1 PASSWORD_LIFE_TIME PASSWORD UNLIMITED

DBAMON_PF1 PASSWORD_REUSE_TIME PASSWORD UNLIMITED

DBAMON_PF1 PASSWORD_REUSE_MAX PASSWORD UNLIMITED

DBAMON_PF1 PASSWORD_VERIFY_FUNCTION PASSWORD VERIFY_FUNCTION

DBAMON_PF1 PASSWORD_LOCK_TIME PASSWORD .0106

DBAMON_PF1 PASSWORD_GRACE_TIME PASSWORD UNLIMITED

DEFAULT COMPOSITE_LIMIT KERNEL UNLIMITED

DEFAULT SESSIONS_PER_USER KERNEL UNLIMITED

DEFAULT CPU_PER_SESSION KERNEL UNLIMITED

DEFAULT CPU_PER_CALL KERNEL UNLIMITED

DEFAULT LOGICAL_READS_PER_SESSION KERNEL UNLIMITED

DEFAULT LOGICAL_READS_PER_CALL KERNEL UNLIMITED

DEFAULT IDLE_TIME KERNEL UNLIMITED

DEFAULT CONNECT_TIME KERNEL UNLIMITED

DEFAULT PRIVATE_SGA KERNEL UNLIMITED

DEFAULT FAILED_LOGIN_ATTEMPTS PASSWORD 10

DEFAULT PASSWORD_LIFE_TIME PASSWORD 180

DEFAULT PASSWORD_REUSE_TIME PASSWORD UNLIMITED

DEFAULT PASSWORD_REUSE_MAX PASSWORD UNLIMITED

DEFAULT PASSWORD_VERIFY_FUNCTION PASSWORD VERIFY_FUNCTION_11G

DEFAULT PASSWORD_LOCK_TIME PASSWORD 1

DEFAULT PASSWORD_GRACE_TIME PASSWORD 7

我创建的新用户，没有指定profile，所以会是默认的default profile，对应的"PASSWORD_VERIFY_FUNCTION" 有一些差别。

看来是对于密码安全的加强，来看看相关的简单测试，看看密码验证还都做了那些校验。

SQL> create user mig_perf identified by mig_perf1;

create user mig_perf identified by mig_perf1

ORA-20005: Password same as or similar to user name

SQL> create user mig_perf identified by abc;

create user mig_perf identified by abc

ORA-20001: Password length less than 8

SQL> create user mig_perf identified by abcabc12;

User created.

SQL> drop user mig_perf;

User dropped.

当然了“PASSWORD VERIFY_FUNCTION_11G”其实是一个function来实现的。具体的细节可以在$ORACLE_HOME/rdbms/admin/utlpwdmg.sql中查看。

> ls -lrt utlpwd*

-rw-r--r-- 1 oraccbs1 dba 11555 Aug 13 2006 utlpwdmg.sql

-- This script sets the default password resource parameters

-- This script needs to be run to enable the password features.

-- However the default resource parameters can be changed based

-- on the need.

-- A default password complexity function is also provided.

-- This function makes the minimum complexity checks like

-- the minimum length of the password, password not same as the

-- username, etc. The user may enhance this function according to

-- the need.

-- This function must be created in SYS schema.

-- connect sys/<password> as sysdba before running the script

CREATE OR REPLACE FUNCTION verify_function_11G

(username varchar2,

password varchar2,

old_password varchar2)

RETURN boolean IS

n boolean;

m integer;

differ integer;

isdigit boolean;

ischar boolean;

ispunct boolean;

db_name varchar2(40);

digitarray varchar2(20);

punctarray varchar2(25);

chararray varchar2(52);

i_char varchar2(10);

simple_password varchar2(10);

reverse_user varchar2(32);

BEGIN

digitarray:= '0123456789';

chararray:= 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';

。。。。

而且在11g的数据字典里也有所体现，可以看到如下的用户密码是10g,11g的

在dba_users中有一列 password_version

******************************************************************************************************

* General Details *

USERNAME Default Tablespace CREATED PROFILE PASSWORD_V

------------------------- -------------------- --------- ---------- ----------

MIG_PERF DATAS01 31-MAR-14 DEFAULT 10G 11G

一些相关的链接如下：

How To Enforce Mixed Case Passwords When sec_case_sensitive_logon = true? (Doc ID 1307555.1)

ORA-603 ORA-604 ORA-1001 ORA-28003 when PASSWORD_VERIFY_FUNCTION Returns FALSE (Doc ID 1264842.1) --这是一个11.2.0.2以前的bug

ORA-28003 Error When Use 'Password Complexity Verification' (Doc ID 132096.1) --alter user identified by 错误的WA