NAME TYPE VALUE
------------------------------------ ----------- ------------------------------compatible string 11.2.02. 设定wallet的位置(在sqlnet.ora文件中写入如下内容,需要重启数据库才能生效): 指定 ENCRYPTION_WALLET_LOCATION 参数
[oracle@11g admin]$ cat sqlnet.ora
#SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES)ENCRYPTION_WALLET_LOCATION = (SOURCE= (METHOD=file) (METHOD_DATA= (DIRECTORY=/home/oracle/wallet)))3)在指定(DIRECTORY路径下建好wallet目录。 不然报:ORA-28368: cannot auto-create wallet
[oracle@11g ~]$ mkdir wallet
[oracle@11g wallet]$ pwd
/home/oracle/wallet
4)在wallet里面创建key
SQL> alter system set encryption key authenticated by "andy";
System altered.
5)创建一个表,对其中某列
SQL> create table andy.andy_tde(
id number(10) primary key, col_tde varchar2(50) encrypt using 'AES192' ); 2 3 4Table created.
说明:TDE支持的加密算法:
SQL> set linesize 300
SQL> select * from dba_encrypted_columns;OWNER TABLE_NAME COLUMN_NAME ENCRYPTION_ALG
------------------------------ ------------------------------ ------------------------------ ------------------ANDY ANDY_TDE COL_TDE AES 192 bits key
SQL> insert into andy_tde values (1,'tde');
1 row created.
SQL> commit;
Commit complete.
SQL> select * from andy_tde;
ID COL_TDE
---------- --------------------------------- 1 tde6)如果关闭wallet,无法访问加密的数据:
SQL> alter system set wallet close identified by "andy";
System altered.
SQL> select * from andy_tde;
select * from andy_tde *ERROR at line 1:ORA-28365: wallet is not open7)重新打开wallet,才可以访问加密的数据
SQL> alter system set wallet open identified by "andy";
System altered.
SQL> select * from andy_tde;
ID COL_TDE
---------- ---------------------------- 1 tde