Exetools - Skype is opensource

Exetools (https://forum.exetools.com/index.php)

- General Discussion (https://forum.exetools.com/forumdisplay.php?f=2)

- - Skype is opensource (https://forum.exetools.com/showthread.php?t=13564)

BoRoV

06-04-2011 15:06

Skype is opensource

Quote:

Hello, I'am Efim Bushmanov a freelance researcher and here is my project files on skype research.

While "Wall Street Journal" makes politics and skype today's trend, i want to publish my research on this. My aim is to make skype open source. And find friends who can spend many hours for completely reverse it.

Now, most of hard things already done(for 1.x/3.x/4.x versions of skype). Including rc4 and arithmetic compression.

You have unique chance to take a look on skype internal protocol and encryption. You will see what it uses strong AES and RSA encryption with public key infrastructure.

hxxp://skype-open-source.blogspot.com/2011/06/skype-protocol-reverse-engineered.html

wishi

06-05-2011 16:30

Good to know M$ joins OpenSource and actively supports it... more or less ;)

BoRoV

06-05-2011 17:50

Many people write me in PM. It not a question, it is information.

ecc29

06-05-2011 23:53

Quote:

Originally Posted by wishi (Post 73322)

Good to know M$ joins OpenSource and actively supports it... more or less ;)

Looks like a reverse engineering project. It has nothing to do with M$. Frankly, I never expect M$ will make their $8.5 billion new toy opensourced.

dlldlldll

06-07-2011 01:02

ok thanks, that's good, is it's to include in our applications?

dario_es

06-09-2011 09:28

HaHa
M$ support Opensource?

beBoss

06-13-2011 20:01

Links for download doesn't work ?

beBoss

06-13-2011 20:12

Upss, can't edit my previews post, but if anyone wants, can download it with torrent client (for example utorrent):
File -> add torrent from URL

Code:

magnet:?xt=urn:btih:4d93c83f807d8b88a4ba4108730caf3e7d6209fb

torrent files:
info.txt 1.05 kB
skype_part1_binaries.zip 26.6 MB
skype_part2_ida.zip 76.3 MB
skype_part3_source.zip 44.2 MB

hash: 4D93C83F807D8B88A4BA4108730CAF3E7D6209FB

rd	06-14-2011 13:58

I think M$ will change Skype protocol and how it works to make the RE'd opensource one become incompatible.

pp2	06-15-2011 13:45

Quote:

Originally Posted by rd (Post 73547)

I think M$ will change Skype protocol and how it works to make the RE'd opensource one become incompatible.

Skype already changed protocol, so you need to reverse it again (or maybe change some constants).

reckless

06-15-2011 13:57

wow��that's good!

reckless

06-15-2011 14:18

Look this
https://github.com/skypeopensource/skypeopensource/downloads#download_102615

Squidge

07-20-2011 21:33

Thats now based on an old version of the protocol. Regular clients will already refuse to communicate with that version.

They probably have not changed much, but it'll still take time to determine what has changed.

leonhard

10-11-2011 16:00

good news, glad to hear this.

All times are GMT +8. The time now is 15:04.