P2P-Zone - View Single Post - Partial hashing subjects FastTrack to fake file flooding

Stoepsel · 30-08-03, 11:41 AM

The hash code of a file is not stored in the file. The file itself is used as the basis for calculating its hash code.

A hash code is generated by treating the file as a long sequence of 0's and 1's, running them through some form of hashing algorithm and thereby turning them into a more manageable (read: shorter) sequence of 0's and 1's. In that sense, the hash code is like a fingerprint of a human person. A small part of the human body is used to identify the whole person to a good degree of accuracy.

One of the most common hashing algorithms is called MD5. You can read on MD5 hashing here.

Renaming a file does not change the hash code of a file. The file name is not part of the file contents and therefore isn't considered in the hashing process.

Hope this gets you headed in the right direction,
Stoepsel

30-08-03, 11:41 AM	#7
Stoepsel Waiting For The Night To Fall... Join Date: Jan 2002 Posts: 225	The hash code of a file is not stored in the file. The file itself is used as the basis for calculating its hash code. A hash code is generated by treating the file as a long sequence of 0's and 1's, running them through some form of hashing algorithm and thereby turning them into a more manageable (read: shorter) sequence of 0's and 1's. In that sense, the hash code is like a fingerprint of a human person. A small part of the human body is used to identify the whole person to a good degree of accuracy. One of the most common hashing algorithms is called MD5. You can read on MD5 hashing here. Renaming a file does not change the hash code of a file. The file name is not part of the file contents and therefore isn't considered in the hashing process. Hope this gets you headed in the right direction, Stoepsel __________________ Who is General Failure and why is he reading my hard disk?