I need insert any my bank-card information to sqlite db, so when I insert the
car number like '3312' and car password like '7711', but I wanna nobody can see
the password, so I create a function encode('7711','key') and decode(select
from stable where carnum=3312, 'key') to see the password, the key is like
'plkey777' to encode or decode the password , but I don't know how to realize
that. and I have a function to encode and decode : procode(aa,bb,flag);
char *aa="plkey777";
char *bb="7711";
procode(aa,bb,1); //here is to encoding the char ,bb result is bb
insert into stable select "3312",bb;
procode(aa,bb,2); //here is to decoding the char ,bb result is bb
select carbumber,procode(aa,bb,2) from stable
I don't know how to do this. the code upside isPseudo code。
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