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dbms如何對數(shù)據(jù)進行加密

九三
207
2021-01-22 11:05:30

dbms如何對數(shù)據(jù)進行加密

利用dbms對數(shù)據(jù)進行加密的方法

1.首先,在數(shù)據(jù)庫中新建一個test表;

drop table test;

create table test(

userid varchar2(50) primary key,

password varchar2(64),

encrypted varchar2(64)

);

2.test表新建好后,向表中添加數(shù)據(jù);

insert into test values ('user1','user1234',null);

3.最后,數(shù)據(jù)添加好后,執(zhí)行以下dbms命令即可對數(shù)據(jù)進行加密;

FUNCTION DECRYPT_3KEY_MODE (

iValue in raw, iMode in pls_integer

)

return varchar2

as

vDecrypted varchar2(4000);

rawkey raw(240) := '';

begin

rawkey := GEN_RAW_KEY(iKey);

-- decrypt input string

vDecrypted := dbms_obfuscation_toolkit.des3decrypt (

UTL_RAW.CAST_TO_VARCHAR2(iValue)

, key_string => rawkey

, which => iMode

);

return vDecrypted;

end;

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