(1)DES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;
(2)DES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;
(3)MD5加密函数
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;
(4)函数使用示例
DES加密: update tb_salarysign_staff s set s.staffpwd =encrypt_des(s.staffpwd, 'test#5&124*!de');
DES解密:select decrypt_des(s.staffpwd, 'test#5&124*!de') from tb_salarysign_staff s
MD5加密: update tb_salarysign_staff s set s.staffpwd = md5(s.staffpwd);
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