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create master key encryption by
password = 'administrator123'
--ÓÃÃÜÂëadmini--
create certificate c1
encryption by password = 'administrator123'
with subject = 'c1 certificate',
start_date='03/08/2009',
expiry_date = '02/08/2020';
go
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create table testB(id int identity(1,1),name varbinary(5000))
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insert into testB(name)
select encryptbycert(cert_id('c1'),'test')
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select * from testB
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select id ,cast(decryptbycert(cert_id('c1'),name ,
N'administrator123')as varchar(20)) from testB
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