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* [nncp-devel] [EN] NNCP 3.3 release announcement
@ 2018-06-10 19:39 Sergey Matveev
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From: Sergey Matveev @ 2018-06-10 19:39 UTC (permalink / raw)
  To: nncp-devel

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I am pleased to announce NNCP 3.3 release availability!

NNCP (Node to Node copy) is a collection of utilities simplifying
secure store-and-forward files and mail exchanging.

This utilities are intended to help build up small size (dozens of
nodes) ad-hoc friend-to-friend (F2F) statically routed darknet
delay-tolerant networks for fire-and-forget secure reliable files, file
requests, Internet mail and commands transmission. All packets are
integrity checked, end-to-end encrypted (E2EE), explicitly authenticated
by known participants public keys. Onion encryption is applied to
relayed packets. Each node acts both as a client and server, can use
push and poll behaviour model.

Out-of-box offline sneakernet/floppynet, dead drops, sequential and
append-only CD-ROM/tape storages, air-gapped computers support. But
online TCP daemon with full-duplex resumable data transmission exists.

------------------------ >8 ------------------------

The main improvements for that release are:

* nncp-daemon, nncp-call, nncp-caller check if .seen exists and treat it
  like file was already downloaded. Possibly it was transferred
  out-of-bound and remote side needs to be notifier about that.
* If higher priority packet is spooled, then nncp-daemon will queue its
  sending first, interrupting lower priority transmissions.
* Simple packet rate limiter added to online-related tools (nncp-daemon,
  nncp-call, nncp-caller).
* Ability to specify niceness with symbolic notation: NORMAL, BULK+10,
  PRIORITY-5, etc.
* Changed default niceness levels: for nncp-exec from 64 to 96, for
  nncp-freq from 64 to 160, for nncp-file from 196 to 224.

------------------------ >8 ------------------------

NNCP's home page is:

Source code and its signature for that version can be found here: (1152 KiB)

SHA256 hash: 1F8FA9B4 6125D8A9 0608298B A1ED87E1 12DB2D8B 81C766DE F4DFE191 C7B1BFC2
GPG key ID: 0x2B25868E75A1A953 NNCP releases <releases@nncpgo•org>
Fingerprint: 92C2 F0AE FE73 208E 46BF  F3DE 2B25 868E 75A1 A953

Please send questions regarding the use of NNCP, bug reports and patches
to mailing list:

Sergey Matveev (
OpenPGP: CF60 E89A 5923 1E76 E263  6422 AE1A 8109 E498 57EF

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2018-06-10 19:39 [nncp-devel] [EN] NNCP 3.3 release announcement Sergey Matveev