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The 'MD5' and 'MMD5' FTP Command Extensions

Document Type Replaced Internet-Draft (individual)
Author James R. Twine
Last updated 2010-06-14 (Latest revision 2002-05-14)
Replaced by draft-bryan-ftp-hash
Stream (None)
Intended RFC status (None)
Expired & archived
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-bryan-ftp-hash
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document specifies two additions to the File Transfer Protocol (FTP). These additions (new Server commands) would give FTP Servers the ability to generate (or otherwise obtain) and return MD5 checksums for the files it has available for transfer. It is the author's belief that this would provide a great benefit to the Internet community, because it would allow automated transfer agents, as well as Web Browsers and other 'click-to-download' applications to be able to automatically verify the data of a downloaded file, and hence be able to detect any data tampering and/or corruption that may occurred while 'on the wire', or possibly while the file was on the Server (a virus infection).


James R. Twine

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)