Oracle提供Wrap工具，可以用于加密你的Package等.
不过需要注意的是，加密后的代码无法解密，你需要保管好你的源代码。
以下是个例子:
1.源代码
create or replace function get_rowid
(l_rowid in varchar2)
return varchar2
is
ls_my_rowid varchar2(200);
rowid_type number;
object_number number;
relative_fno number;
block_number number;
row_number number;
begin
dbms_rowid.rowid_info(l_rowid,rowid_type,object_number,relative_fno, block_number, row_number);
ls_my_rowid := 'Object# is :'||to_char(object_number)||chr(10)||
'Relative_fno is :'||to_char(relative_fno)||chr(10)||
'Block number is :'||to_char(block_number)||chr(10)||
'Row number is :'||to_char(row_number);
return ls_my_rowid ;
end;
/
2.代码功能测试
[oracle@jumper tools]$ sqlplus scott/tiger
SQL*Plus: Release 9.2.0.4.0 - Production on Mon Nov 15 21:56:36 2004
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning option
JServer Release 9.2.0.4.0 - Production
SQL> @f_get_rowid
Function created.
SQL> select rowid from dept where deptno=10;
ROWID
------------------
AAABiPAABAAAFRSAAA
SQL> select get_rowid('AAABiPAABAAAFRSAAA') from dual;
GET_ROWID('AAABIPAABAAAFRSAAA')
------------------------------------------------------------------
Object# is :6287
Relative_fno is :1
Block number is :21586
Row number is :0
SQL> !
[oracle@jumper tools]$ ls
ct.sql ddlt.sql f_get_rowid.sql getevent.sql
3.使用wrap加密及加密后的代码
[oracle@jumper tools]$ wrap iname=f_get_rowid.sql oname=f_get_rowid.plb
PL/SQL Wrapper: Release 9.2.0.4.0- Production on Mon Nov 15 21:59:39 2004
Copyright (c) Oracle Corporation 1993, 2001. All Rights Reserved.
Processing f_get_rowid.sql to f_get_rowid.plb
[oracle@jumper tools]$ cat f_get_rowid.plb
create or replace function get_rowid wrapped
0
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
3
8
9200000
1
4
0
17
2 :e:
1FUNCTION:
1GET_ROWID:
1L_ROWID:
1VARCHAR2:
1RETURN:
1LS_MY_ROWID:
1200:
1ROWID_TYPE:
1NUMBER:
1OBJECT_NUMBER:
1RELATIVE_FNO:
1BLOCK_NUMBER:
1ROW_NUMBER:
1DBMS_ROWID:
1ROWID_INFO:
1Object# is :::
1||:
1TO_CHAR:
1CHR:
110:
1Relative_fno is :::
1Block number is :::
1Row number is :::
0
0
0
83
2
0 a0 8d 8f a0 b0 3d b4
:2 a0 2c 6a a3 a0 51 a5 1c
81 b0 a3 a0 1c 81 b0 a3
a0 1c 81 b0 a3 a0 1c 81
b0 a3 a0 1c 81 b0 a3 a0
1c 81 b0 :2 a0 6b :6 a0 a5 57
a0 6e 7e :2 a0 a5 b b4 2e
7e a0 51 a5 b b4 2e 7e
6e b4 2e 7e :2 a0 a5 b b4
2e 7e a0 51 a5 b b4 2e
7e 6e b4 2e 7e :2 a0 a5 b
b4 2e 7e a0 51 a5 b b4
2e 7e 6e b4 2e 7e :2 a0 a5
b b4 2e d :2 a0 65 b7 a4
b1 11 68 4f 1d 17 b5
83
2
0 3 7 23 1f 1e 2b 1b
30 34 38 3c 59 44 48 4b
4c 54 43 75 64 68 70 40
8d 7c 80 88 63 a9 98 9c
a4 60 c1 b0 b4 bc 97 dd
cc d0 d8 94 c8 e4 e8 eb
ef f3 f7 fb ff 103 104 109
10d 112 115 119 11d 11e 120 121
126 129 12d 130 131 133 134 139
13c 141 142 147 14a 14e 152 153
155 156 15b 15e 162 165 166 168
169 16e 171 176 177 17c 17f 183
187 188 18a 18b 190 193 197 19a
19b 19d 19e 1a3 1a6 1ab 1ac 1b1
1b4 1b8 1bc 1bd 1bf 1c0 1c5 1c9
1cd 1d1 1d5 1d7 1db 1dd 1e9 1ed
1ef 1f0 1f9
83
2
0 1 a 2 d :2 2 :2 1 8
:3 1 e 17 16 :2 e :2 1 :3 d :2 1
:3 10 :2 1 :3 f :2 1 :3 f :2 1 :3 d 1
2 :2 d 18 20 2b 39 47 55
:3 2 11 24 26 2e :2 26 :2 11 3c
3e 42 :2 3e :2 11 45 3 :2 11 16
18 20 :2 18 :2 11 2d 2f 33 :2 2f
:2 11 36 3 :2 11 16 18 20 :2 18
:2 11 2d 2f 33 :2 2f :2 11 36 3
:2 11 16 18 20 :2 18 :2 11 :2 2 9
2 :9 1
83
4
0 :2 1 :5 2 :2 3
:2 1 :7 5 :5 6 :5 7
:5 8 :5 9 :5 a :b c
:11 d e :2 d :5 e
:2 d :5 e :2 d e
f :2 d :5 f :2 d
:5 f :2 d f 10
:2 d :5 10 :3 d :3 11
:2 b :7 1
1fb
4
:3 0 1 :3 0 2
:a 0 7e 1 :7 0
5 :2 0 3 4
:3 0 3 :7 0 5
4 :3 0 5 :3 0
4 :3 0 7 9
0 7e 2 a
:2 0 b 60 0
9 4 :3 0 7
:2 0 7 d f
:6 0 12 10 0
7c 0 6 :6 0
f 94 0 d
9 :3 0 14 :7 0
17 15 0 7c
0 8 :6 0 9
:3 0 19 :7 0 1c
1a 0 7c 0
a :6 0 13 c8
0 11 9 :3 0
1e :7 0 21 1f
0 7c 0 b
:6 0 9 :3 0 23
:7 0 26 24 0
7c 0 c :6 0
e :3 0 9 :3 0
28 :7 0 2b 29
0 7c 0 d
:6 0 f :3 0 2c
2d 0 3 :3 0
8 :3 0 a :3 0
b :3 0 c :3 0
d :3 0 15 2e
35 :2 0 7a 6
:3 0 10 :4 0 11
:2 0 12 :3 0 a
:3 0 1c 3a 3c
1e 39 3e :3 0
11 :2 0 13 :3 0
14 :2 0 21 41
43 23 40 45
:3 0 11 :2 0 15
:4 0 26 47 49
:3 0 11 :2 0 12
:3 0 b :3 0 29
4c 4e 2b 4b
50 :3 0 11 :2 0
13 :3 0 14 :2 0
2e 53 55 30
52 57 :3 0 11
:2 0 16 :4 0 33
59 5b :3 0 11
:2 0 12 :3 0 c
:3 0 36 5e 60
38 5d 62 :3 0
11 :2 0 13 :3 0
14 :2 0 3b 65
67 3d 64 69
:3 0 11 :2 0 17
:4 0 40 6b 6d
:3 0 11 :2 0 12
:3 0 d :3 0 43
70 72 45 6f
74 :3 0 37 75
0 7a 5 :3 0
6 :3 0 78 :2 0
7a 48 7d :3 0
7d 4c 7d 7c
7a 7b :6 0 7e
:2 0 2 a 7d
81 :3 0 80 7e
82 :8 0
53
4
:3 0 1 3 1
6 1 e 1
c 1 13 1
18 1 1d 1
22 1 27 6
2f 30 31 32
33 34 1 3b
2 38 3d 1
42 2 3f 44
2 46 48 1
4d 2 4a 4f
1 54 2 51
56 2 58 5a
1 5f 2 5c
61 1 66 2
63 68 2 6a
6c 1 71 2
6e 73 3 36
76 79 6 11
16 1b 20 25
2a
1
4
0
81
0
1
14
1
8
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0 0
3 1 0
22 1 0
2 0 1
c 1 0
13 1 0
27 1 0
18 1 0
1d 1 0
0
/
4.测试加密后的代码
[oracle@jumper tools]$ exit
exit
SQL> drop function get_rowid;
Function dropped.
SQL> @f_get_rowid.plb
Function created.
SQL> select get_rowid('AAABiPAABAAAFRSAAA') from dual;
GET_ROWID('AAABIPAABAAAFRSAAA')
-----------------------------------------------------------------
Object# is :6287
Relative_fno is :1
Block number is :21586
Row number is :0
SQL>
注意，如果出现如下错误：
kgepop: no error frame. to pop to for error 1801
则需要设置正确的环境变量：NLS_LANG
例如在WIndows下可以如下设置：
C:oracleora92in>set NLS_LANG=CHINESE_CHINA.ZHS16GBK