高分求SQL Server 2000 中如何实现存储数据的加解密方法？
SQL   Server   2000   中如何实现存储数据的加解密？

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关注
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1.加密
Creat Proc 过程名 With ENCRYPTION

2.解密:
可以在网上搜个解密工具
似乎有位老大也写过存储过程解密的代码,只是记不得了
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转发下:
关键字 字节不受限制,比SQLexplorer安全,查看所有SYSCOMMENTS内加密的代码

查看对象源代码（包括加密的）

create PROCEDURE sp_decrypt(@objectName varchar(50))
AS
begin
set nocount on
--CSDN：j9988 copyright:2004.01.05
--V3.1
--破解字节不受限制，适用于SQLSERVER2000存储过程，函数，视图，触发器
--发现有错，请E_MAIL：CSDNj9988@tom.com
begin tran
declare @objectname1 varchar(100),@orgvarbin varbinary(8000)
declare @sql1 nvarchar(4000),@sql2 varchar(8000),@sql3 nvarchar(4000),@sql4 nvarchar(4000)
DECLARE @OrigSpText1 nvarchar(4000), @OrigSpText2 nvarchar(4000) , @OrigSpText3 nvarchar(4000), @resultsp nvarchar(4000)
declare @i int,@status int,@type varchar(10),@parentid int
declare @colid int,@n int,@q int,@j int,@k int,@encrypted int,@number int
select @type=xtype,@parentid=parent_obj from sysobjects where id=object_id(@ObjectName)

create table #temp(number int,colid int,ctext varbinary(8000),encrypted int,status int)
insert #temp SELECT number,colid,ctext,encrypted,status FROM syscomments WHERE id = object_id(@objectName)
select @number=max(number) from #temp
set @k=0

while @k <=@number
begin
if exists(select 1 from syscomments where id=object_id(@objectname) and number=@k)
begin
if @type= 'P '
set @sql1=(case when @number> 1 then 'ALTER PROCEDURE '+ @objectName + '; '+rtrim(@k)+ ' WITH ENCRYPTION AS '
else 'ALTER PROCEDURE '+ @objectName+ ' WITH ENCRYPTION AS '
end)

if @type= 'TR '
set @sql1= 'ALTER TRIGGER '+@objectname+ ' ON '+OBJECT_NAME(@parentid)+ ' WITH ENCRYPTION FOR INSERT AS PRINT 1 '

if @type= 'FN ' or @type= 'TF ' or @type= 'IF '
set @sql1=(case @type when 'TF ' then
'ALTER FUNCTION '+ @objectName+ '(@a char(1)) returns @b table(a varchar(10)) with encryption as begin insert @b select @a return end '
when 'FN ' then
'ALTER FUNCTION '+ @objectName+ '(@a char(1)) returns char(1) with encryption as begin return @a end '
when 'IF ' then
'ALTER FUNCTION '+ @objectName+ '(@a char(1)) returns table with encryption as return select @a as a '
end)

if @type= 'V '
set @sql1= 'ALTER VIEW '+@objectname+ ' WITH ENCRYPTION AS SELECT 1 as f '

set @q=len(@sql1)
set @sql1=@sql1+REPLICATE( '- ',4000-@q)
select @sql2=REPLICATE( '- ',8000)
set @sql3= 'exec(@sql1 '
select @colid=max(colid) from #temp where number=@k
set @n=1
while @n <=CEILING(1.0*(@colid-1)/2) and len(@sQL3) <=3996
begin
set @sql3=@sql3+ '+@ '
set @n=@n+1
end
set @sql3=@sql3+ ') '
exec sp_executesql @sql3,N '@Sql1 nvarchar(4000),@ varchar(8000) ',@sql1=@sql1,@=@sql2

end
set @k=@k+1
end

set @k=0
while @k <=@number
begin

if exists(select 1 from syscomments where id=object_id(@objectname) and number=@k)
begin
select @colid=max(colid) from #temp where number=@k
set @n=1

while @n <=@colid
begin
select @OrigSpText1=ctext,@encrypted=encrypted,@status=status FROM #temp WHERE colid=@n and n