• 解密SQLServer2000加密存储过程,函数,触发器,视图


    查看SQL SERVER 加密存储过程,函数,触发器,视图     选择自 j9988 的 Blog 

    关键字   字节不受限制,比SQLexplorer安全,查看所有SYSCOMMENTS内加密的代码

    创建好sp_decrypt之后,运行SQLServer2000查询分析器

    use db_name

    exec sp_decrypt 'encrypt_view'

    显示加密内容

    //--------------------------------------------------------------------------------------

     create  PROCEDURE sp_decrypt(@objectname varchar(50))

    AS

    begin

    set nocount on

    --CSDN:j9988 copyright:2004.07.15

    --V3.2

    --破解字节不受限制,适用于SQLSERVER2000存储过程,函数,视图,触发器

    --修正上一版"视图触发器"不能正确解密错误

    --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'

    begin

    declare @parent_obj varchar(255),@tr_parent_xtype varchar(10)

    select @parent_obj=parent_obj from sysobjects where id=object_id(@objectname)

    select @tr_parent_xtype=xtype from sysobjects where id=@parent_obj

    if @tr_parent_xtype='V'

    begin

    set @sql1='ALTER TRIGGER '+@objectname+' ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION INSTERD OF INSERT AS PRINT 1 '

    end

    else

    begin

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

    end

     

    end

    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 number=@k

     

    SET @OrigSpText3=(SELECT ctext FROM syscomments WHERE id=object_id(@objectname) and colid=@n and number=@k)

    if @n=1

    begin

    if @type='P'

    SET @OrigSpText2=(case when @number>1 then 'CREATE PROCEDURE '+ @objectname +';'+rtrim(@k)+' WITH ENCRYPTION AS '

                           else 'CREATE PROCEDURE '+ @objectname +' WITH ENCRYPTION AS '

                           end)

     

     

    if @type='FN' or @type='TF' or @type='IF'

    SET @OrigSpText2=(case @type when 'TF' then

    'CREATE FUNCTION '+ @objectname+'(@a char(1)) returns @b table(a varchar(10)) with encryption as begin insert @b select @a return end '

    when 'FN' then

    'CREATE FUNCTION '+ @objectname+'(@a char(1)) returns char(1) with encryption as begin return @a end'

    when 'IF' then

    'CREATE FUNCTION '+ @objectname+'(@a char(1)) returns table with encryption as return select @a as a'

    end)

     

    if @type='TR'

    begin

     

    if @tr_parent_xtype='V'

    begin

    set @OrigSpText2='CREATE TRIGGER '+@objectname+' ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION INSTEAD OF INSERT AS PRINT 1 '

    end

    else

    begin

    set @OrigSpText2='CREATE TRIGGER '+@objectname+' ON '+OBJECT_NAME(@parentid)+' WITH ENCRYPTION FOR INSERT AS PRINT 1 '

    end

     

    end

     

    if @type='V'

    set @OrigSpText2='CREATE VIEW '+@objectname+' WITH ENCRYPTION AS SELECT 1 as f'

     

    set @q=4000-len(@OrigSpText2)

    set @OrigSpText2=@OrigSpText2+REPLICATE('-',@q)

    end

    else

    begin

    SET @OrigSpText2=REPLICATE('-', 4000)

    end

    SET @i=1

     

    SET @resultsp = replicate(N'A', (datalength(@OrigSpText1) / 2))

     

    WHILE @i<=datalength(@OrigSpText1)/2

    BEGIN

     

    SET @resultsp = stuff(@resultsp, @i, 1, NCHAR(UNICODE(substring(@OrigSpText1, @i, 1)) ^

                                    (UNICODE(substring(@OrigSpText2, @i, 1)) ^

                                    UNICODE(substring(@OrigSpText3, @i, 1)))))

     SET @i=@i+1

    END

    set @orgvarbin=cast(@OrigSpText1 as varbinary(8000))

    set @resultsp=(case when @encrypted=1

                        then @resultsp

                        else convert(nvarchar(4000),case when @status&2=2 then uncompress(@orgvarbin) else @orgvarbin end)

                   end)

    print @resultsp

     

    set @n=@n+1

     

    end

     

    end

    set @k=@k+1

    end

     

    drop table #temp

    rollback tran

    end

     

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  • 原文地址:https://www.cnblogs.com/tiasys/p/1808942.html
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