Each byte's range of KeyString for AES_Encrypt function(Only support ascii?)

[Lee Mitchell(powerdev.org)]

Hi...
But i'm not happy, because nodody answer to my questions.
Anyway, here is new question.


When i use AES_ENCRYPT with a cihper key,
i wanna use the key as binary stream.
Like this,

1. make SQL syntax. before crypted querying.
- unsigned char *pKey = {0x01, 0x01, 0x03, ..., 0x16};
- sprintf(szTemp, "SET @key='%s';", pKey); //this line working properly.


2. and querying.
- mysql_query(...)

3 But, i can't go forward to get next querying,
because MySQL got error like below.
- "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '???????????' at line 1"

We just use only ascii stream?
Is that really security?... i can't make a decision...

Let's share any thing for about my aricles.