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    查看SQL SERVER 加密存储过程,函数,触发器,视图

    时间:2012/7/23 20:06:55 点击:

      核心提示:create PROCEDURE sp_decrypt(@objectname varchar(50))ASbeginset nocount on--CSDN:j9988 copyright:2004...

    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

    Tags:查看 看S SQ QL 
    作者:佚名 来源:不详

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