Aes key length significance/implications

Posted by cppdev on Stack Overflow See other posts from Stack Overflow or by cppdev
Published on 2010-12-24T08:27:48Z Indexed on 2010/12/24 16:54 UTC
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Hi,

I am using a AES algorithm in my application for encrypting plain text. I am trying to use a key which is a six digit number. But as per the AES spec, the key should be minimum sixteen bytes in length. I am planning to append leading zeros to my six digit number to make it a 16 byte and then use this as a key.

Would it have any security implications ? I mean will it make my ciphertext more prone to attacks.

Please help.

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