Re: [PHP] Possible to write CRC/MD5 to the file?

2004-02-23 Thread Adam Bregenzer
On Mon, 2004-02-23 at 00:01, Evan Nemerson wrote: What you would have to do is find a collision, which is thankfully difficult to do- if it were easy, MD5 would be useless. Theoretically, you could modify say John The Ripper and have it brute force something, but you may end up waiting a

Re: [PHP] Possible to write CRC/MD5 to the file?

2004-02-23 Thread Sean McCarthy
Hi, At 04:20 23/02/2004, Simon Fredriksson wrote: I wonder if it's possible to write the MD5 or CRC checksum of my scriptfile to the scriptfile. I know that if I change it, the value will change, but is there any way to calculate what it will be? There's no way you can add the CRC after

[PHP] Possible to write CRC/MD5 to the file?

2004-02-22 Thread Simon Fredriksson
I wonder if it's possible to write the MD5 or CRC checksum of my scriptfile to the scriptfile. I know that if I change it, the value will change, but is there any way to calculate what it will be? Not just displaying it for the user, but actually having it written in the file. Could be pretty

Re: [PHP] Possible to write CRC/MD5 to the file?

2004-02-22 Thread Evan Nemerson
On Sunday 22 February 2004 08:20 pm, Simon Fredriksson wrote: I wonder if it's possible to write the MD5 or CRC checksum of my scriptfile to the scriptfile. I know that if I change it, the value will change, but is there any way to calculate what it will be? What you would have to do is find a