oracle常用加解密函数

CREATE OR REPLACE FUNCTION MD5(

passwd IN VARCHAR2)

RETURN VARCHAR2

IS

retval varchar2(32);

BEGIN

retval := utl_raw.cast_to_raw(DBMS_OBFUSCATION_TOOLKIT.MD5(INPUT_STRING => passwd)) ;

RETURN retval;

END;

select md5() from dual

create or replace function

encrypt_des(p_text varchar2, p_key varchar2) return varchar2 is

v_text varchar2();

v_enc varchar2();

raw_input RAW() ;

key_input RAW() ;

decrypted_raw RAW();

begin

v_text := rpad( p_text, (trunc(length(p_text)/)+)*, chr());

raw_input := UTL_RAW.CAST_TO_RAW(v_text);

key_input := UTL_RAW.CAST_TO_RAW(p_key);

dbms_obfuscation_toolkit.DESEncrypt(input => raw_input,key => key_input,encrypted_data =>decrypted_raw);

v_enc := rawtohex(decrypted_raw);

dbms_output.put_line(v_enc);

return v_enc;

end;

select encrypt_des('test', 'key123456789') from dual;

create or replace function decrypt_des(p_text varchar2,p_key varchar2) return varchar2 is

v_text varchar2();

begin

dbms_obfuscation_toolkit.DESDECRYPT(input_string => UTL_RAW.CAST_TO_varchar2(p_text),key_string =>p_key, decrypted_string=> v_text);

v_text := rtrim(v_text,chr());

dbms_output.put_line(v_text);

return v_text;

end;

select decrypt_des('test', 'key123456789') from dual;