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264 commits 6 branches 47 tags 138 MiB
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Author SHA1 Message Date
Russ Magee
c5498642fc Got client hangup working again. Security scrub auth vars. 2018-05-04 23:25:26 -07:00
Russ Magee
925e83bbba Added comment wrt. mutex lock scope in WritePacket 2018-05-04 14:40:06 -07:00
Russ Magee
a49a5d4cc2 Locking in WritePacket() apparently working, client and server-side chaffing functional 2018-05-03 23:53:47 -07:00
Russ Magee
6d606bbbd9 Moved mutex into hkexsh.Conn (hkexnet) 2018-05-02 13:22:37 -07:00
Russ Magee
4d85236d16 Chaffing slight improvements (rand size, timing). TODO: Move into hkexsh.Conn 2018-05-02 12:28:56 -07:00
Russ Magee
b8a07e9648 Chaff packets w/sync.Mutex to allow chaff & main goroutine to both input to server. 
TODO: smart chaff, mutating or mimicking recent input.
 2018-05-01 02:39:45 -07:00
Russ Magee
8162707ffa - got term resizing working (client SIGWINCH signals -> server_pty(rows,cols) 2018-04-28 19:28:37 -07:00
Russ Magee
50f0433579 -Added error checking for all stages of hkex.Conn.Accept() and GetStream() 
-Server will log such errors without panic/exit
-Const added but not yet used for 'chaff' packets
 2018-04-28 16:05:33 -07:00
Russ Magee
c56d4d9ad9 hmac tampering indication implemented -- local and remote-side 2018-04-15 13:29:06 -07:00
Russ Magee
b45784e07b Minimal hmac channel verification w/close on tampering 2018-04-15 12:58:24 -07:00
Russ Magee
351f58b6c5 misc. cleanup, LICENSE.{gpl,mit} updates 2018-04-07 13:04:10 -07:00
Russ Magee
ae5a8cfa3b Quick 'n dirty Makefile 2018-04-04 15:51:03 +00:00
Russ Magee
5da70447b0 MSYS+mintty support; pkg renaming to hkexsh 2018-04-04 15:43:27 -07:00
Russ Magee
dd746cf343 Fixed handling of -x non-interactive command runs and hangup of interactive session 2018-03-26 21:58:42 -07:00
Russ Magee
cb0ce956b9 Server-side client hangup working; TODO - client-side handling of post-exit EOF (broken pipe) 2018-03-25 23:00:37 -07:00
Russ Magee
65b7af8063 Excessive debugging off; client logout (exit) causing panic on server-side, debug TBD 2018-03-25 21:47:38 -07:00
Russ Magee
5ea75e456d De-packetizing-rebuffering of Read() w/HMAC working, yay 2018-03-25 19:59:07 -07:00
Russ Magee
3f5db06f16 De-packetizing-rebuffering of Read() w/HMAC working, yay 2018-03-25 19:58:04 -07:00
Russ Magee
c0fa2bcdf9 hmac usage commented out, 2nd attempt to re-add usage w/paylaod len 2018-03-25 10:40:23 -07:00
Russ Magee
e14ccbe366 Length calc but not xmit -- grouped Read() likely the issue to handle 2018-02-16 22:12:27 -08:00
Russ Magee
744730ae23 HMAC calc w/no xmit or verification, working..? 2018-02-16 19:25:11 -08:00
Russ Magee
7c76e4d235 pkg paths to private repo 2018-02-16 18:49:49 -08:00
Russ Magee
d465c1ee5b Initial experiments: HMAC on stream 2018-02-16 18:46:29 -08:00
Russ Magee
6ea206fbc2 Merge of public work on github.com/Russtopia/hkexsh repo 2018-02-16 18:43:37 -08:00
Russ Magee
2b44c87815 Partial fixes to client login env; Added missing Conn.Listener interface methods to hkex.Conn.Listener 2018-01-26 16:15:39 -08:00
Russ Magee
52423b7144 Cleaned up some debug, moved insulter for failed login into project 2018-01-24 18:14:21 -08:00
Russ Magee
d484ec7fd1 Added hkexpasswd util; moved minimal term stuff into hkexauth.go 2018-01-23 13:53:05 -08:00
Russ Magee
3ca98d364c Oops. Forgot to add hexkauth.go to last few commits. 2018-01-21 22:13:35 -08:00
Russ Magee
4d9ea3cbe1 Brought in ReadPassword from ssh/terminal, enabling entry of authCookie w/o term 
echo.
TODO: consider methods of securing authCookie in auth file (salt+hash etc.)
 2018-01-21 22:02:08 -08:00
Russ Magee
59337db7e3 Changed to use runShellAs() (pass cmdline to bash) rather than runCmdAs (os.exec) 
to allow pipelines, redir etc.
 2018-01-21 17:31:54 -08:00
Russ Magee
6fd8ac1519 Added -u (user), -x (exec cmd) options, -d (dbg) for logging; detection of "-x -" for 
stdin/pipeline commands.
 2018-01-21 15:46:40 -08:00
Russ Magee
39a0890346 Merge branch 'kexsh-proto' of ssh://tripe.blitter.com/~russtopia/git/herradurakex into kexsh-proto 2018-01-20 21:28:55 -08:00
Russ Magee
e3842e4219 Removed channel-based server loop goroutine, solving eaten initial byte issue. 
Made receivers on hkex.Conn mutators *Conn again (whoops)
TODO: Consider: padding (? probably not, XORKeyStream OFB/CBC/etc. modes prevent
constant header/crib exposure, and would add lots of complexity to Read/Write)
TODO: Add CTR, other modes
 2018-01-20 21:20:49 -08:00
Russ Magee
3efdd5cfbd Removed channel-based server loop goroutine, solving eaten initial byte issue. 
Made receivers on hkex.Conn mutators *Conn again (whoops)
TODO: Padding in ciphertext data!
 2018-01-20 20:37:27 -08:00
Russ Magee
732005d9bf Some cleanup in prep for possible io.ReadFull() fixed-block session-cmd header to resolve the eaten-byte issue handing Accept off to cmdRunner 2018-01-18 21:17:57 -08:00
Russ Magee
49c589ee8d Added pty lib to give true terminal capability. raw mode/restore for client working 2018-01-18 18:57:37 -08:00
Russ Magee
e8fe31f6d7 Set lots of KEx Printfs to log.Printf (and off by default). Hacky non=tty shell works! 2018-01-17 21:27:00 -08:00
Russ Magee
cca2895526 Took a step back on cmd exec, just getting EOF/hangup on client/server ends working 2018-01-17 20:36:53 -08:00
Russ Magee
ad5366bdfb removed hardcoded op 'e' in client demo; hardcoded test server output 2018-01-17 16:55:10 -08:00
Russ Magee
9fb9d073ab Completed net.Conn interface implementation for hkex.Conn; some tests of Op protocol in server 2018-01-17 16:39:01 -08:00
Russ Magee
e09f052f45 Just some commented-out SetReadDeadline() experiments 2018-01-16 18:30:57 -08:00
Russ Magee
942b8865cf Start of proto kexsh tool client/server 2018-01-13 10:01:27 -08:00
Russ Magee
78edf1c130 Tucked dbg{client/server} away for testing 2018-01-12 22:47:57 -08:00
Russ Magee
9b3bd6b78b Added client/server host:port, addr:port options 2018-01-12 22:24:40 -08:00
Russ Magee
1817627234 -Cleaned up lib code with gometalinter.v1 
-Added -h opt to demo client (hmac)
 2018-01-12 22:13:01 -08:00
Russ Magee
5493921e9f -Added client -c option to pass cipher alg 
-Note about blowfish iv len (lack of) bounds check in .NewOFB();
-TODO added to enforce keymat from HKex >= 2*chosen cipher blocksize
 (assuming keylen == blocksize -- might not be true for all future algs)
 2018-01-11 23:01:39 -08:00
Russ Magee
aaa99360be Made server.go and serverp.go (plaintext net example) use same bufsize 2018-01-11 21:32:55 -08:00
Russ Magee
9054bcb89f Dial() extensions to specify cipher/hmac alg and protocol options 2018-01-11 19:42:42 -08:00
Russ Magee
02d4d0cd50 Package documentation 2018-01-11 13:44:11 -08:00
Russ Magee
d4c9a1e456 Bit of cleanup in hkex.Read(),Write() and server.go read bufsize to 512 2018-01-11 09:13:18 -08:00