[转载]oracle的加密和解密

 

加密函数

create or replace function 
encrypt_des(p_text varchar2, p_key varchar2) return varchar2 is
v_text varchar2(4000);
v_enc varchar2(4000);
raw_input RAW(128) ;
key_input RAW(128) ;
decrypted_raw RAW(2048);
begin
v_text := rpad( p_text, (trunc(length(p_text)/8)+1)*8, chr(0));
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;

解密函数

create or replace function decrypt_des(p_text varchar2,p_key varchar2) return varchar2 is
v_text varchar2(2000);
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(0));
dbms_output.put_line(v_text);
return v_text;
end;

------------------------------------------------------------

加密

select encrypt_des('feng', 'test#5&124*!de') from dual;

输入秘钥:15+5=17   结果:B33F50EA2F5E23D7

解密

select decrypt_des('B33F50EA2F5E23D7', 'test#5&124*!de') from dual;

输入秘钥:15+5=17   结果:feng

 

 

出处:https://www.cnblogs.com/feng666666/p/5911800.html

posted @ 2018-04-24 16:12  AaronBear  阅读(307)  评论(0编辑  收藏  举报