Oracle stored procedure encryption method

Software environment:
1. Operating system: Windows 2000 Server
2. Data Base: Oracle 8i R2 (8.1.7) for NT Enterprise Edition
3. Installation path: C:ORACLE
Implementation method:
1.
D: > set NLS_LANG=AMERICAN_AMERICA.USACII7
or
D: > set NLS_LANG=AMERICAN_AMERICA.WE8ISO8859P1

D: > set
Type set directly to view environment variables
2,
Create the a. sql file under D: with the following contents:
create or replace procedure test1(i in number) as
begin
dbms_output. put_line(' input parameter is '||to_char(i));

end;
3,
D: > wrap iname=a.sql
PL/SQL Wrapper: Release 8.1.7.0.0-ES68en on Nov 27 22:26:48 2001
Copyright (c) Oracle Corporation 1993, 2000. All Rights Reserved.
Processing a.sql to a.plb
4,
Open a.plb and it now reads as follows:
create or replace procedure test1 wrapped
0
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
3
7
8106000
1
4
0
8
2 :e:
1TEST1:
1I:
1NUMBER:
1DBMS_OUTPUT:
1PUT_LINE:
1. Input parameters are:
1 | | :
1TO_CHAR:
0
0
0
1f
2
0 1d 9a 8f a0 b0 3d b4
55 6a :2 a0 6b 6e 7e :2 a0 a5
b b4 2e a5 57 b7 a4 b1
11 68 4f 17 b5
1f
2
0 3 4 1d 19 18 25 15
2a 2e 32 36 3a 3d 42 45
49 4d 4e 50 51 56 57 5c
5e 62 64 70 74 76 7f
1f
2
0 1 b 11 16 :2 11 10 :3 1
:2 d 16 22 24 2c :2 24 :2 16 :a 1
1f
2
0 :9 1 :d 3 :2 2 :3 1 4 :2 1
81
4
:4 0 1 :a 0 1b
1 :4, 0, 5 :2, 0
:2, 3 :3, 0, 2 :7, 0
5, 4 :3, 0, 7
:2 0 1b 2 8
:2, 0, 4, 3, 0, 5
:3 0 a b 0
Six: four, seven: two, zero
8:3, 0, 2 :3, 0
7 f 11 9
e 13 :3 0 :2 c
Two: zero, seventeen, ten
1a :3 0 1a 0
1a 19 17 18
:6 0 1b :2 0 2
8 1a 1d :2 0
1 1b 1e :8 0
13
4
:3, 0, 1, 3, 1
10 2 June 1
d 12 1 14
1 16 2 16
1c
1
4
0
1d
0
1
14
1
2
Zero zero zero zero zero zero zero zero
Zero zero zero zero zero zero zero zero
0 0 0 0
2 0 1
3 1 0
0
/
5. Run ES281en. plb
SQL > @d:a.plb
The procedure has been created.
6. Run the stored procedure
SQL > set serveroutput on

SQL > execute test1(1);
The input parameter is 1
The PL/SQL process was successfully completed.
7, view the stored procedure code
SQL > select name,text from all_source where type='PROCEDURE' and name='TEST1';
Result: The original code cannot be seen