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SUMI: A Fast Anonymous File Transfer Program

SUMI (http://sf.net/projects/sumi) is a new file sharing program that aims for total anonymity for the uploader. It is a work in progress; although anonymous file transfer works there are some rough edges. SUMI is the first P2P program to use IP spoofing with proxied acknowledgement.

This site is about the SUMI anonymous file transfer program. It is in no way related to TEX9's sumi (was xtunes).

Please note, SUMI currently alpha-quality. Feedback appreciated.

Features

• Anonymous serving with adjustable source addresses
• No proxies needed = no slow down
• Resuming
• Cross-platform client GUI
• Open source
• UDP, ICMP direct, ICMP echo modes (use any pingable host as a proxy)
• Integrate with mIRC, xchat, AIM, or Tor
• XDCC-like server file listing
• Optional raw socket proxy and raw socket priviledge seperation program for better security
• Strong Cryptography
• Torrent-like .sumi files (in 0.8.13 or newer)

News

2006-12-06: The research project was completed. FEC with Reed-Solomon was partially implemented, but further progress relies on the availability of a large-block, expandable, rateless FEC codec. See Fall 2006 for more information.

2006-10-09: I will now be working on this project under independent study at a university, see Fall 2006 for details.

2005-09-16: Go get 0.8.15 (http://sourceforge.net/project/showfiles.php?group_id=113628). New in this version:

• Upgraded to to Python 2.4. Please report (http://developer.berlios.de/bugs/?group_id=4611) any issues. I'd prefer if you also try the previous version of SUMI before reporting bugs, as it is protocol-compatible but uses Python 2.3.
• Bugfixes: the modmirc transport works again, better interface selection
• Scripting support. Pass -e script.py to sumigetw to run any Python code.
• Client can join multicast groups.
  • This is not full multicast support. The server still needs work. However, sending to 224.0.0.1 across my LAN works.
• The no-installer release is a smaller self-extracting 7-Zip (http://www.7-zip.org/) archive

Summer is over. Development will proceed slowly as I will no longer have all day to work on SUMI. Sorry. Feedback is, as always, welcomed. Patches (http://developer.berlios.de/patch/?group_id=4611) or other contributions even more so. I will be back... --Shellreef 08:14, 17 Sep 2005 (BST)

2005-09-12: 0.8.14 is out, featuring:

• More bugfixes
• CRC-32 in every packet
• SHA-1 for file verification
• Improved uninstaller

This is the first release with the source code in Subversion. Due to the CRC-32 and SHA-1, the protocol is backwards-incompatible, so you'll need to upgrade in order to access the sample servers.

2005-09-01: 0.8.13 released, notably featuring:

• Many bugfixes
• Torrent-like .sumi files--see sample files above
• WinPcap is included with installer to simplify installation
• modirclib is back, with full crypt_req support
• Drag-and-drop support (can drop a .sumi file onto the sumigetw window to open it)
• GUI enhancements: upgraded to wxPython 2.6.1.0, add context-menu options to resume and abort

Additionally, the Tor and irclib sample SUMI servers are back up.

2005-08-30: Moved SUMI Wiki to BerliOS. Let's hope it is faster...

2005-08-27: Created this Wiki, powered by MediaWiki, hosted on SourceForge

2005-08-25: Temporarily shutdown the sample server due to MTU/MSS incompatibilities introduced in CVS. Will be restored with next release.

2005-08-21: 0.8.12 released! Featuring full file data encryption, and the ability to use Tor (http://tor.eff.org/) as a transport. A sample server should be up soon.

2005-07-31: 0.8.11 is now out, with sharing integrated within the GUI and optional request encryption

2005-07-02: 0.8.10 released, featuring Windows 95/98/Me sumiserv compatibility, UDP checksums, optional Ethernet address spoofing, a better transport plugin mechanism for sumiserv, and AIM support in sumiserv.

2005-06-20: development resumed

2005-06-15: #sumi moved to irc.xtc-dreams.com and after many months, the sample SUMI server sumi-00 is back up.

Using a NAT? As of v0.8.5, a new program, rawproxd is included to run on NATs (particularly the WRT54GS) to enable SUMI serving.

Sample Files

Please note, the sample server is not always available.

Want to quickly test out SUMI? After installing it, click a file below, opening it with SUMI if prompted:

test1.sumi - over Tor transport (http://sumi.sf.net/test1.sumi) - requires Tor (http://tor.eff.org/) (installed and running)

If it always times out, be sure to forward port (http://www.portforward.com) 3490 UDP and set your IP to a public address. See also Tor.

Other Projects of Interest

• Tor (http://tor.eff.org/)
• Rodi (http://larytet.sourceforge.net/btRat.shtml)
• Mantis (http://www.lix.polytechnique.fr/~tomc/P2P/Papers/Systems/Mantis.pdf) - UDP spoofing over ANTS, similar to SUMI
• Freenet (http://freenet.sourceforge.net/)

more...

Acknowledgements

• Jeff Connelly - lead developer
• James Ruckdaschel - Lead Beta Tester and Supervisor
• Chirag Patel - Website Logo Design, Beta Tester
• Keith Oakely - original SUMI icon design
• Dan Weber - helped with some documentation
• Scott Johnston - beta tester

This product includes software developed by CORE Security Technologies (http://www.coresecurity.com/) (namely pcapy (http://oss.coresecurity.com/projects/pcapy.html))