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docs/manual/_sources/understanding.rst.txt
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@ -134,10 +134,11 @@ be sufficient, even far into the future.
By default Reticulum encrypts all data using elliptic curve cryptography and AES. Any packet sent to a
destination is encrypted with a per-packet derived key. Reticulum can also set up an encrypted
channel to a destination, called a *Link*. Both data sent over Links and single packets offer
*Initiator Anonymity*, and links additionally offer *Forward Secrecy* by using an Elliptic Curve
Diffie Hellman key exchange on Curve25519 to derive per-link ephemeral keys. The multi-hop transport,
coordination, verification and reliability layers are fully autonomous and also based on elliptic
curve cryptography.
*Initiator Anonymity*. Links additionally offer *Forward Secrecy* by default, employing an Elliptic Curve
Diffie Hellman key exchange on Curve25519 to derive per-link ephemeral keys. Asymmetric, link-less
packet communication can also provide forward secrecy, with automatic key ratcheting, by enabling
ratchets on a per-destination basis. The multi-hop transport, coordination, verification and reliability
layers are fully autonomous and also based on elliptic curve cryptography.
Reticulum also offers symmetric key encryption for group-oriented communications, as well as
unencrypted packets for local broadcast purposes.
@ -431,7 +432,7 @@ For exchanges of small amounts of information, Reticulum offers the *Packet* API
* | A packet is always created with an associated destination and some payload data. When the packet is sent
to a *single* destination type, Reticulum will automatically create an ephemeral encryption key, perform
an ECDH key exchange with the destination's public key, and encrypt the information.
an ECDH key exchange with the destination's public key (or ratchet key, if available), and encrypt the information.
* | It is important to note that this key exchange does not require any network traffic. The sender already
knows the public key of the destination from an earlier received *announce*, and can thus perform the ECDH
@ -693,7 +694,8 @@ Wire Format
[HEADER 2 bytes] [ADDRESSES 16/32 bytes] [CONTEXT 1 byte] [DATA 0-465 bytes]
* The HEADER field is 2 bytes long.
* Byte 1: [IFAC Flag], [Header Type], [Propagation Type], [Destination Type] and [Packet Type]
* Byte 1: [IFAC Flag], [Header Type], [Context Flag], [Propagation Type],
[Destination Type] and [Packet Type]
* Byte 2: Number of hops
* Interface Access Code field if the IFAC flag was set.
@ -725,12 +727,16 @@ Wire Format
type 2 1 Two byte header, two 16 byte address fields
Context Flag
-----------------
unset 0 The context flag is used for various types
set 1 of signalling, depending on packet context
Propagation Types
-----------------
broadcast 00
transport 01
reserved 10
reserved 11
broadcast 0
transport 1
Destination Types
@ -862,12 +868,14 @@ both on general-purpose CPUs and on microcontrollers. The necessary primitives a
* HKDF for key derivation
* Fernet for encrypted tokens
* Modified Fernet for encrypted tokens
* AES-128 in CBC mode
* HMAC for message authentication
* No Version and Timestamp metadata included
* SHA-256
* SHA-512

9
docs/manual/_sources/whatis.rst.txt
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@ -53,9 +53,9 @@ What does Reticulum Offer?
* Forward Secrecy by using ephemeral Elliptic Curve Diffie-Hellman keys on Curve25519
* Reticulum uses the `Fernet <https://github.com/fernet/spec/blob/master/Spec.md>`_ specification for on-the-wire / over-the-air encryption
* Reticulum uses a modified version of the `Fernet <https://github.com/fernet/spec/blob/master/Spec.md>`_ specification for on-the-wire / over-the-air encryption
* All keys are ephemeral and derived from an ECDH key exchange on Curve25519
* Keys are ephemeral and derived from an ECDH key exchange on Curve25519
* AES-128 in CBC mode with PKCS7 padding
@ -63,6 +63,8 @@ What does Reticulum Offer?
* IVs are generated through os.urandom()
* No Version and Timestamp metadata included
* Unforgeable packet delivery confirmations
* A variety of supported interface types
@ -99,7 +101,8 @@ of the types of interfaces Reticulum was designed for.
An open-source LoRa-based interface called `RNode <https://unsigned.io/rnode>`_
has been designed as an example transceiver that is very suitable for
Reticulum. It is possible to build it yourself, to transform a common LoRa
development board into one, or it can be purchased as a complete transceiver.
development board into one, or it can be purchased as a complete transceiver
from various vendors.
Reticulum can also be encapsulated over existing IP networks, so there's
nothing stopping you from using it over wired Ethernet or your local WiFi

2
docs/manual/_static/documentation_options.js
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@ -1,6 +1,6 @@
var DOCUMENTATION_OPTIONS = {
URL_ROOT: document.getElementById("documentation_options").getAttribute('data-url_root'),
VERSION: '0.7.6 beta',
VERSION: '0.7.7 beta',
LANGUAGE: 'en',
COLLAPSE_INDEX: false,
BUILDER: 'html',

32
docs/manual/examples.html
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@ -6,7 +6,7 @@
<link rel="index" title="Index" href="genindex.html" /><link rel="search" title="Search" href="search.html" /><link rel="next" title="Support Reticulum" href="support.html" /><link rel="prev" title="Building Networks" href="networks.html" />
<meta name="generator" content="sphinx-5.3.0, furo 2022.09.29.dev1"/>
<title>Code Examples - Reticulum Network Stack 0.7.6 beta documentation</title>
<title>Code Examples - Reticulum Network Stack 0.7.7 beta documentation</title>
<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="_static/styles/furo.css?digest=189ec851f9bb375a2509b67be1f64f0cf212b702" />
<link rel="stylesheet" type="text/css" href="_static/copybutton.css" />
@ -141,7 +141,7 @@
</label>
</div>
<div class="header-center">
<a href="index.html"><div class="brand">Reticulum Network Stack 0.7.6 beta documentation</div></a>
<a href="index.html"><div class="brand">Reticulum Network Stack 0.7.7 beta documentation</div></a>
</div>
<div class="header-right">
<div class="theme-toggle-container theme-toggle-header">
@ -167,7 +167,7 @@
<img class="sidebar-logo" src="_static/rns_logo_512.png" alt="Logo"/>
</div>
<span class="sidebar-brand-text">Reticulum Network Stack 0.7.6 beta documentation</span>
<span class="sidebar-brand-text">Reticulum Network Stack 0.7.7 beta documentation</span>
</a><form class="sidebar-search-container" method="get" action="search.html" role="search">
<input class="sidebar-search" placeholder="Search" name="q" aria-label="Search">
@ -656,7 +656,6 @@ the Packet interface.</p>
<span class="c1"># of the packet. #</span>
<span class="c1">##########################################################</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">import</span> <span class="nn">argparse</span>
<span class="kn">import</span> <span class="nn">RNS</span>
@ -679,19 +678,8 @@ the Packet interface.</p>
<span class="c1"># We must first initialise Reticulum</span>
<span class="n">reticulum</span> <span class="o">=</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Reticulum</span><span class="p">(</span><span class="n">configpath</span><span class="p">)</span>
<span class="c1"># Load identity from file if it exist or randomley create</span>
<span class="k">if</span> <span class="n">configpath</span><span class="p">:</span>
<span class="n">ifilepath</span> <span class="o">=</span> <span class="s2">&quot;</span><span class="si">%s</span><span class="s2">/storage/identitiesy/</span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">configpath</span><span class="p">,</span><span class="n">APP_NAME</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">ifilepath</span> <span class="o">=</span> <span class="s2">&quot;</span><span class="si">%s</span><span class="s2">/storage/identities/</span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">RNS</span><span class="o">.</span><span class="n">Reticulum</span><span class="o">.</span><span class="n">configdir</span><span class="p">,</span><span class="n">APP_NAME</span><span class="p">)</span>
<span class="k">if</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="n">ifilepath</span><span class="p">):</span>
<span class="c1"># Load identity from file</span>
<span class="n">server_identity</span> <span class="o">=</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Identity</span><span class="o">.</span><span class="n">from_file</span><span class="p">(</span><span class="n">ifilepath</span><span class="p">)</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;loaded identity from file: &quot;</span><span class="o">+</span><span class="n">ifilepath</span><span class="p">,</span> <span class="n">RNS</span><span class="o">.</span><span class="n">LOG_VERBOSE</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="c1"># Randomly create a new identity for our echo example</span>
<span class="n">server_identity</span> <span class="o">=</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Identity</span><span class="p">()</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;created new identity&quot;</span><span class="p">,</span> <span class="n">RNS</span><span class="o">.</span><span class="n">LOG_VERBOSE</span><span class="p">)</span>
<span class="c1"># Randomly create a new identity for our echo server</span>
<span class="n">server_identity</span> <span class="o">=</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Identity</span><span class="p">()</span>
<span class="c1"># We create a destination that clients can query. We want</span>
<span class="c1"># to be able to verify echo replies to our clients, so we</span>
@ -1030,8 +1018,8 @@ destination, and passing traffic back and forth over the link.</p>
<span class="c1"># We must first initialise Reticulum</span>
<span class="n">reticulum</span> <span class="o">=</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Reticulum</span><span class="p">(</span><span class="n">configpath</span><span class="p">)</span>
<span class="c1"># Randomly create a new identity for our link example</span>
<span class="n">server_identity</span> <span class="o">=</span> <span class="n">RNS</span><span class="o">.</span><span class="n">Identity</span><span class="p">()</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;created new identity&quot;</span><span class="p">,</span> <span class="n">RNS</span><span class="o">.</span><span class="n">LOG_VERBOSE</span><span class="p">)</span>
<span class="c1"># We create a destination that clients can connect to. We</span>
<span class="c1"># want clients to create links to this destination, so we</span>
@ -1060,7 +1048,7 @@ destination, and passing traffic back and forth over the link.</p>
<span class="s2">&quot; running, waiting for a connection.&quot;</span>
<span class="p">)</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;Hit enter to manually send an announce (Ctrl-C or </span><span class="se">\&quot;</span><span class="s2">quit</span><span class="se">\&quot;</span><span class="s2"> to quit)&quot;</span><span class="p">)</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;Hit enter to manually send an announce (Ctrl-C to quit)&quot;</span><span class="p">)</span>
<span class="c1"># We enter a loop that runs until the users exits.</span>
<span class="c1"># If the user hits enter, we will announce our server</span>
@ -1070,12 +1058,6 @@ destination, and passing traffic back and forth over the link.</p>
<span class="n">entered</span> <span class="o">=</span> <span class="nb">input</span><span class="p">()</span>
<span class="n">destination</span><span class="o">.</span><span class="n">announce</span><span class="p">()</span>
<span class="n">RNS</span><span class="o">.</span><span class="n">log</span><span class="p">(</span><span class="s2">&quot;Sent announce from &quot;</span><span class="o">+</span><span class="n">RNS</span><span class="o">.</span><span class="n">prettyhexrep</span><span class="p">(</span><span class="n">destination</span><span class="o">.</span><span class="n">hash</span><span class="p">))</span>
<span class="k">if</span> <span class="n">entered</span> <span class="o">==</span> <span class="s2">&quot;quit&quot;</span><span class="p">:</span>
<span class="k">if</span> <span class="n">latest_client_link</span><span class="p">:</span>
<span class="n">latest_client_link</span><span class="o">.</span><span class="n">teardown</span><span class="p">()</span>
<span class="k">break</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">&quot;&quot;</span><span class="p">)</span>
<span class="n">exit</span><span class="p">()</span>
<span class="c1"># When a client establishes a link to our server</span>
<span class="c1"># destination, this function will be called with</span>

6
docs/manual/forhumans.html
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@ -6,7 +6,7 @@
<link rel="index" title="Index" href="genindex.html" /><link rel="search" title="Search" href="search.html" />
<meta name="generator" content="sphinx-5.3.0, furo 2022.09.29.dev1"/>
<title>An Explanation of Reticulum for Human Beings - Reticulum Network Stack 0.7.6 beta documentation</title>
<title>An Explanation of Reticulum for Human Beings - Reticulum Network Stack 0.7.7 beta documentation</title>
<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="_static/styles/furo.css?digest=189ec851f9bb375a2509b67be1f64f0cf212b702" />
<link rel="stylesheet" type="text/css" href="_static/copybutton.css" />
@ -141,7 +141,7 @@
</label>
</div>
<div class="header-center">
<a href="index.html"><div class="brand">Reticulum Network Stack 0.7.6 beta documentation</div></a>
<a href="index.html"><div class="brand">Reticulum Network Stack 0.7.7 beta documentation</div></a>
</div>
<div class="header-right">
<div class="theme-toggle-container theme-toggle-header">
@ -167,7 +167,7 @@
<img class="sidebar-logo" src="_static/rns_logo_512.png" alt="Logo"/>
</div>
<span class="sidebar-brand-text">Reticulum Network Stack 0.7.6 beta documentation</span>
<span class="sidebar-brand-text">Reticulum Network Stack 0.7.7 beta documentation</span>
</a><form class="sidebar-search-container" method="get" action="search.html" role="search">
<input class="sidebar-search" placeholder="Search" name="q" aria-label="Search">

28
docs/manual/genindex.html
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@ -4,7 +4,7 @@
<meta name="viewport" content="width=device-width,initial-scale=1"/>
<meta name="color-scheme" content="light dark"><link rel="index" title="Index" href="#" /><link rel="search" title="Search" href="search.html" />
<meta name="generator" content="sphinx-5.3.0, furo 2022.09.29.dev1"/><title>Index - Reticulum Network Stack 0.7.6 beta documentation</title>
<meta name="generator" content="sphinx-5.3.0, furo 2022.09.29.dev1"/><title>Index - Reticulum Network Stack 0.7.7 beta documentation</title>
<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="_static/styles/furo.css?digest=189ec851f9bb375a2509b67be1f64f0cf212b702" />
<link rel="stylesheet" type="text/css" href="_static/copybutton.css" />
@ -139,7 +139,7 @@
</label>
</div>
<div class="header-center">
<a href="index.html"><div class="brand">Reticulum Network Stack 0.7.6 beta documentation</div></a>
<a href="index.html"><div class="brand">Reticulum Network Stack 0.7.7 beta documentation</div></a>
</div>
<div class="header-right">
<div class="theme-toggle-container theme-toggle-header">
@ -165,7 +165,7 @@
<img class="sidebar-logo" src="_static/rns_logo_512.png" alt="Logo"/>
</div>
<span class="sidebar-brand-text">Reticulum Network Stack 0.7.6 beta documentation</span>
<span class="sidebar-brand-text">Reticulum Network Stack 0.7.7 beta documentation</span>
</a><form class="sidebar-search-container" method="get" action="search.html" role="search">
<input class="sidebar-search" placeholder="Search" name="q" aria-label="Search">
@ -293,6 +293,8 @@
<li><a href="reference.html#RNS.Buffer.create_reader">create_reader() (RNS.Buffer static method)</a>
</li>
<li><a href="reference.html#RNS.Buffer.create_writer">create_writer() (RNS.Buffer static method)</a>
</li>
<li><a href="reference.html#RNS.Identity.current_ratchet_id">current_ratchet_id() (RNS.Identity static method)</a>
</li>
<li><a href="reference.html#RNS.Identity.CURVE">CURVE (RNS.Identity attribute)</a>
@ -330,6 +332,8 @@
<h2>E</h2>
<table style="width: 100%" class="indextable genindextable"><tr>
<td style="width: 33%; vertical-align: top;"><ul>
<li><a href="reference.html#RNS.Destination.enable_ratchets">enable_ratchets() (RNS.Destination method)</a>
</li>
<li><a href="reference.html#RNS.Destination.encrypt">encrypt() (RNS.Destination method)</a>
<ul>
@ -339,6 +343,8 @@
</ul></td>
<td style="width: 33%; vertical-align: top;"><ul>
<li><a href="reference.html#RNS.Packet.ENCRYPTED_MDU">ENCRYPTED_MDU (RNS.Packet attribute)</a>
</li>
<li><a href="reference.html#RNS.Destination.enforce_ratchets">enforce_ratchets() (RNS.Destination method)</a>
</li>
<li><a href="reference.html#RNS.Link.ESTABLISHMENT_TIMEOUT_PER_HOP">ESTABLISHMENT_TIMEOUT_PER_HOP (RNS.Link attribute)</a>
</li>
@ -568,6 +574,14 @@
<h2>R</h2>
<table style="width: 100%" class="indextable genindextable"><tr>
<td style="width: 33%; vertical-align: top;"><ul>
<li><a href="reference.html#RNS.Destination.RATCHET_COUNT">RATCHET_COUNT (RNS.Destination attribute)</a>
</li>
<li><a href="reference.html#RNS.Identity.RATCHET_EXPIRY">RATCHET_EXPIRY (RNS.Identity attribute)</a>
</li>
<li><a href="reference.html#RNS.Destination.RATCHET_INTERVAL">RATCHET_INTERVAL (RNS.Destination attribute)</a>
</li>
<li><a href="reference.html#RNS.Identity.RATCHETSIZE">RATCHETSIZE (RNS.Identity attribute)</a>
</li>
<li><a href="reference.html#RNS.RawChannelReader">RawChannelReader (class in RNS)</a>
</li>
<li><a href="reference.html#RNS.RawChannelWriter">RawChannelWriter (class in RNS)</a>
@ -580,12 +594,12 @@
</li>
<li><a href="reference.html#RNS.Channel.Channel.register_message_type">register_message_type() (RNS.Channel.Channel method)</a>
</li>
</ul></td>
<td style="width: 33%; vertical-align: top;"><ul>
<li><a href="reference.html#RNS.Destination.register_request_handler">register_request_handler() (RNS.Destination method)</a>
</li>
<li><a href="reference.html#RNS.Reticulum.remote_management_enabled">remote_management_enabled() (RNS.Reticulum static method)</a>
</li>
</ul></td>
<td style="width: 33%; vertical-align: top;"><ul>
<li><a href="reference.html#RNS.Channel.Channel.remove_message_handler">remove_message_handler() (RNS.Channel.Channel method)</a>
</li>
<li><a href="reference.html#RNS.RawChannelReader.remove_ready_callback">remove_ready_callback() (RNS.RawChannelReader method)</a>
@ -633,6 +647,8 @@
<li><a href="reference.html#RNS.Destination.set_proof_requested_callback">set_proof_requested_callback() (RNS.Destination method)</a>
</li>
<li><a href="reference.html#RNS.Destination.set_proof_strategy">set_proof_strategy() (RNS.Destination method)</a>
</li>
<li><a href="reference.html#RNS.Destination.set_ratchet_interval">set_ratchet_interval() (RNS.Destination method)</a>
</li>
<li><a href="reference.html#RNS.Link.set_remote_identified_callback">set_remote_identified_callback() (RNS.Link method)</a>
</li>
@ -645,6 +661,8 @@
<li><a href="reference.html#RNS.Link.set_resource_started_callback">set_resource_started_callback() (RNS.Link method)</a>
</li>
<li><a href="reference.html#RNS.Link.set_resource_strategy">set_resource_strategy() (RNS.Link method)</a>
</li>
<li><a href="reference.html#RNS.Destination.set_retained_ratchets">set_retained_ratchets() (RNS.Destination method)</a>
</li>
<li><a href="reference.html#RNS.PacketReceipt.set_timeout">set_timeout() (RNS.PacketReceipt method)</a>
</li>

6
docs/manual/gettingstartedfast.html
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@ -6,7 +6,7 @@
<link rel="index" title="Index" href="genindex.html" /><link rel="search" title="Search" href="search.html" /><link rel="next" title="Using Reticulum on Your System" href="using.html" /><link rel="prev" title="What is Reticulum?" href="whatis.html" />
<meta name="generator" content="sphinx-5.3.0, furo 2022.09.29.dev1"/>
<title>Getting Started Fast - Reticulum Network Stack 0.7.6 beta documentation</title>
<title>Getting Started Fast - Reticulum Network Stack 0.7.7 beta documentation</title>
<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="_static/styles/furo.css?digest=189ec851f9bb375a2509b67be1f64f0cf212b702" />
<link rel="stylesheet" type="text/css" href="_static/copybutton.css" />
@ -141,7 +141,7 @@
</label>
</div>
<div class="header-center">
<a href="index.html"><div class="brand">Reticulum Network Stack 0.7.6 beta documentation</div></a>
<a href="index.html"><div class="brand">Reticulum Network Stack 0.7.7 beta documentation</div></a>
</div>
<div class="header-right">
<div class="theme-toggle-container theme-toggle-header">
@ -167,7 +167,7 @@
<img class="sidebar-logo" src="_static/rns_logo_512.png" alt="Logo"/>
</div>
<span class="sidebar-brand-text">Reticulum Network Stack 0.7.6 beta documentation</span>
<span class="sidebar-brand-text">Reticulum Network Stack 0.7.7 beta documentation</span>
</a><form class="sidebar-search-container" method="get" action="search.html" role="search">
<input class="sidebar-search" placeholder="Search" name="q" aria-label="Search">

6
docs/manual/hardware.html
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@ -6,7 +6,7 @@
<link rel="index" title="Index" href="genindex.html" /><link rel="search" title="Search" href="search.html" /><link rel="next" title="Configuring Interfaces" href="interfaces.html" /><link rel="prev" title="Understanding Reticulum" href="understanding.html" />
<meta name="generator" content="sphinx-5.3.0, furo 2022.09.29.dev1"/>
<title>Communications Hardware - Reticulum Network Stack 0.7.6 beta documentation</title>
<title>Communications Hardware - Reticulum Network Stack 0.7.7 beta documentation</title>
<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="_static/styles/furo.css?digest=189ec851f9bb375a2509b67be1f64f0cf212b702" />
<link rel="stylesheet" type="text/css" href="_static/copybutton.css" />
@ -141,7 +141,7 @@
</label>
</div>
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@ -356,7 +356,21 @@ for all encrypted communication over Reticulum networks.</p>
<dl class="py attribute">
<dt class="sig sig-object py" id="RNS.Identity.KEYSIZE">
<span class="sig-name descname"><span class="pre">KEYSIZE</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">512</span></em><a class="headerlink" href="#RNS.Identity.KEYSIZE" title="Permalink to this definition">#</a></dt>
<dd><p>X25519 key size in bits. A complete key is the concatenation of a 256 bit encryption key, and a 256 bit signing key.</p>
<dd><p>X.25519 key size in bits. A complete key is the concatenation of a 256 bit encryption key, and a 256 bit signing key.</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="RNS.Identity.RATCHETSIZE">
<span class="sig-name descname"><span class="pre">RATCHETSIZE</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">256</span></em><a class="headerlink" href="#RNS.Identity.RATCHETSIZE" title="Permalink to this definition">#</a></dt>
<dd><p>X.25519 ratchet key size in bits.</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="RNS.Identity.RATCHET_EXPIRY">
<span class="sig-name descname"><span class="pre">RATCHET_EXPIRY</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">2592000</span></em><a class="headerlink" href="#RNS.Identity.RATCHET_EXPIRY" title="Permalink to this definition">#</a></dt>
<dd><p>The expiry time for received ratchets in seconds, defaults to 30 days. Reticulum will always use the most recently
announced ratchet, and remember it for up to <code class="docutils literal notranslate"><span class="pre">RATCHET_EXPIRY</span></code> since receiving it, after which it will be discarded.
If a newer ratchet is announced in the meantime, it will be replace the already known ratchet.</p>
</dd></dl>
<dl class="py attribute">
@ -403,7 +417,7 @@ for addressable hashes and other purposes. Non-configurable.</p>
<dd class="field-odd"><p><strong>data</strong> – Data to be hashed as <em>bytes</em>.</p>
</dd>
<dt class="field-even">Returns<span class="colon">:</span></dt>
<dd class="field-even"><p>SHA-256 hash as <em>bytes</em></p>
<dd class="field-even"><p>SHA-256 hash as <em>bytes</em>.</p>
</dd>
</dl>
</dd></dl>
@ -417,7 +431,7 @@ for addressable hashes and other purposes. Non-configurable.</p>
<dd class="field-odd"><p><strong>data</strong> – Data to be hashed as <em>bytes</em>.</p>
</dd>
<dt class="field-even">Returns<span class="colon">:</span></dt>
<dd class="field-even"><p>Truncated SHA-256 hash as <em>bytes</em></p>
<dd class="field-even"><p>Truncated SHA-256 hash as <em>bytes</em>.</p>
</dd>
</dl>
</dd></dl>
@ -431,7 +445,21 @@ for addressable hashes and other purposes. Non-configurable.</p>
<dd class="field-odd"><p><strong>data</strong> – Data to be hashed as <em>bytes</em>.</p>
</dd>
<dt class="field-even">Returns<span class="colon">:</span></dt>
<dd class="field-even"><p>Truncated SHA-256 hash of random data as <em>bytes</em></p>
<dd class="field-even"><p>Truncated SHA-256 hash of random data as <em>bytes</em>.</p>
</dd>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="RNS.Identity.current_ratchet_id">
<em class="property"><span class="pre">static</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">current_ratchet_id</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">destination_hash</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Identity.current_ratchet_id" title="Permalink to this definition">#</a></dt>
<dd><p>Get the ID of the currently used ratchet key for a given destination hash</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><p><strong>destination_hash</strong> – A destination hash as <em>bytes</em>.</p>
</dd>
<dt class="field-even">Returns<span class="colon">:</span></dt>
<dd class="field-even"><p>A ratchet ID as <em>bytes</em> or <em>None</em>.</p>
</dd>
</dl>
</dd></dl>
@ -532,7 +560,7 @@ communication for the identity. Be very careful with this method.</p>
<dl class="py method">
<dt class="sig sig-object py" id="RNS.Identity.encrypt">
<span class="sig-name descname"><span class="pre">encrypt</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">plaintext</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Identity.encrypt" title="Permalink to this definition">#</a></dt>
<span class="sig-name descname"><span class="pre">encrypt</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">plaintext</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">ratchet</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Identity.encrypt" title="Permalink to this definition">#</a></dt>
<dd><p>Encrypts information for the identity.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
@ -549,7 +577,7 @@ communication for the identity. Be very careful with this method.</p>
<dl class="py method">
<dt class="sig sig-object py" id="RNS.Identity.decrypt">
<span class="sig-name descname"><span class="pre">decrypt</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">ciphertext_token</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Identity.decrypt" title="Permalink to this definition">#</a></dt>
<span class="sig-name descname"><span class="pre">decrypt</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">ciphertext_token</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">ratchets</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">enforce_ratchets</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">ratchet_id_receiver</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Identity.decrypt" title="Permalink to this definition">#</a></dt>
<dd><p>Decrypts information for the identity.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
@ -611,7 +639,7 @@ communication for the identity. Be very careful with this method.</p>
instances are used both to create outgoing and incoming endpoints. The
destination type will decide if encryption, and what type, is used in
communication with the endpoint. A destination can also announce its
presence on the network, which will also distribute necessary keys for
presence on the network, which will distribute necessary keys for
encrypted communication with it.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
@ -624,6 +652,18 @@ encrypted communication with it.</p>
</ul>
</dd>
</dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="RNS.Destination.RATCHET_COUNT">
<span class="sig-name descname"><span class="pre">RATCHET_COUNT</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">512</span></em><a class="headerlink" href="#RNS.Destination.RATCHET_COUNT" title="Permalink to this definition">#</a></dt>
<dd><p>The default number of generated ratchet keys a destination will retain, if it has ratchets enabled.</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="RNS.Destination.RATCHET_INTERVAL">
<span class="sig-name descname"><span class="pre">RATCHET_INTERVAL</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">1800</span></em><a class="headerlink" href="#RNS.Destination.RATCHET_INTERVAL" title="Permalink to this definition">#</a></dt>
<dd><p>The minimum interval between rotating ratchet keys, in seconds.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="RNS.Destination.expand_name">
<em class="property"><span class="pre">static</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">expand_name</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">identity</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">app_name</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">aspects</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Destination.expand_name" title="Permalink to this definition">#</a></dt>
@ -774,6 +814,64 @@ proofs should be returned for received packets.</p>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="RNS.Destination.enable_ratchets">
<span class="sig-name descname"><span class="pre">enable_ratchets</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">ratchets_path</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Destination.enable_ratchets" title="Permalink to this definition">#</a></dt>
<dd><p>Enables ratchets on the destination. When ratchets are enabled, Reticulum will automatically rotate
the keys used to encrypt packets to this destination, and include the latest ratchet key in announces.</p>
<p>Enabling ratchets on a destination will provide forward secrecy for packets sent to that destination,
even when sent outside a <code class="docutils literal notranslate"><span class="pre">Link</span></code>. The normal Reticulum <code class="docutils literal notranslate"><span class="pre">Link</span></code> establishment procedure already performs
its own ephemeral key exchange for each link establishment, which means that ratchets are not necessary
to provide forward secrecy for links.</p>
<p>Enabling ratchets will have a small impact on announce size, adding 32 bytes to every sent announce.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><p><strong>ratchets_path</strong> – The path to a file to store ratchet data in.</p>
</dd>
<dt class="field-even">Returns<span class="colon">:</span></dt>
<dd class="field-even"><p>True if the operation succeeded, otherwise False.</p>
</dd>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="RNS.Destination.enforce_ratchets">
<span class="sig-name descname"><span class="pre">enforce_ratchets</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Destination.enforce_ratchets" title="Permalink to this definition">#</a></dt>
<dd><p>When ratchet enforcement is enabled, this destination will never accept packets that use its
base Identity key for encryption, but only accept packets encrypted with one of the retained
ratchet keys.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="RNS.Destination.set_retained_ratchets">
<span class="sig-name descname"><span class="pre">set_retained_ratchets</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">retained_ratchets</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Destination.set_retained_ratchets" title="Permalink to this definition">#</a></dt>
<dd><p>Sets the number of previously generated ratchet keys this destination will retain,
and try to use when decrypting incoming packets. Defaults to <code class="docutils literal notranslate"><span class="pre">Destination.RATCHET_COUNT</span></code>.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><p><strong>retained_ratchets</strong> – The number of generated ratchets to retain.</p>
</dd>
<dt class="field-even">Returns<span class="colon">:</span></dt>
<dd class="field-even"><p>True if the operation succeeded, False if not.</p>
</dd>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="RNS.Destination.set_ratchet_interval">
<span class="sig-name descname"><span class="pre">set_ratchet_interval</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">interval</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Destination.set_ratchet_interval" title="Permalink to this definition">#</a></dt>
<dd><p>Sets the minimum interval in seconds between ratchet key rotation.
Defaults to <code class="docutils literal notranslate"><span class="pre">Destination.RATCHET_INTERVAL</span></code>.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><p><strong>interval</strong> – The minimum interval in seconds.</p>
</dd>
<dt class="field-even">Returns<span class="colon">:</span></dt>
<dd class="field-even"><p>True if the operation succeeded, False if not.</p>
</dd>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="RNS.Destination.create_keys">
<span class="sig-name descname"><span class="pre">create_keys</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#RNS.Destination.create_keys" title="Permalink to this definition">#</a></dt>
@ -1814,7 +1912,9 @@ Transport system of Reticulum.</p>
<dd><p>Registers an announce handler.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><p><strong>handler</strong> – Must be an object with an <em>aspect_filter</em> attribute and a <em>received_announce(destination_hash, announced_identity, app_data)</em> callable. See the <a class="reference internal" href="examples.html#example-announce"><span class="std std-ref">Announce Example</span></a> for more info.</p>
<dd class="field-odd"><p><strong>handler</strong> – Must be an object with an <em>aspect_filter</em> attribute and a <em>received_announce(destination_hash, announced_identity, app_data)</em>
callable. Can optionally have a <em>receive_path_responses</em> attribute set to <code class="docutils literal notranslate"><span class="pre">True</span></code>, to also receive all path responses, in addition to live
announces. See the <a class="reference internal" href="examples.html#example-announce"><span class="std std-ref">Announce Example</span></a> for more info.</p>
</dd>
</dl>
</dd></dl>
@ -1964,12 +2064,15 @@ will announce it.</p>
<li><a class="reference internal" href="#RNS.Identity"><code class="docutils literal notranslate"><span class="pre">Identity</span></code></a><ul>
<li><a class="reference internal" href="#RNS.Identity.CURVE"><code class="docutils literal notranslate"><span class="pre">CURVE</span></code></a></li>
<li><a class="reference internal" href="#RNS.Identity.KEYSIZE"><code class="docutils literal notranslate"><span class="pre">KEYSIZE</span></code></a></li>
<li><a class="reference internal" href="#RNS.Identity.RATCHETSIZE"><code class="docutils literal notranslate"><span class="pre">RATCHETSIZE</span></code></a></li>
<li><a class="reference internal" href="#RNS.Identity.RATCHET_EXPIRY"><code class="docutils literal notranslate"><span class="pre">RATCHET_EXPIRY</span></code></a></li>
<li><a class="reference internal" href="#RNS.Identity.TRUNCATED_HASHLENGTH"><code class="docutils literal notranslate"><span class="pre">TRUNCATED_HASHLENGTH</span></code></a></li>
<li><a class="reference internal" href="#RNS.Identity.recall"><code class="docutils literal notranslate"><span class="pre">recall()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Identity.recall_app_data"><code class="docutils literal notranslate"><span class="pre">recall_app_data()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Identity.full_hash"><code class="docutils literal notranslate"><span class="pre">full_hash()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Identity.truncated_hash"><code class="docutils literal notranslate"><span class="pre">truncated_hash()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Identity.get_random_hash"><code class="docutils literal notranslate"><span class="pre">get_random_hash()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Identity.current_ratchet_id"><code class="docutils literal notranslate"><span class="pre">current_ratchet_id()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Identity.from_bytes"><code class="docutils literal notranslate"><span class="pre">from_bytes()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Identity.from_file"><code class="docutils literal notranslate"><span class="pre">from_file()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Identity.to_file"><code class="docutils literal notranslate"><span class="pre">to_file()</span></code></a></li>
@ -1984,6 +2087,8 @@ will announce it.</p>
</ul>
</li>
<li><a class="reference internal" href="#RNS.Destination"><code class="docutils literal notranslate"><span class="pre">Destination</span></code></a><ul>
<li><a class="reference internal" href="#RNS.Destination.RATCHET_COUNT"><code class="docutils literal notranslate"><span class="pre">RATCHET_COUNT</span></code></a></li>
<li><a class="reference internal" href="#RNS.Destination.RATCHET_INTERVAL"><code class="docutils literal notranslate"><span class="pre">RATCHET_INTERVAL</span></code></a></li>
<li><a class="reference internal" href="#RNS.Destination.expand_name"><code class="docutils literal notranslate"><span class="pre">expand_name()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Destination.app_and_aspects_from_name"><code class="docutils literal notranslate"><span class="pre">app_and_aspects_from_name()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Destination.hash_from_name_and_identity"><code class="docutils literal notranslate"><span class="pre">hash_from_name_and_identity()</span></code></a></li>
@ -1996,6 +2101,10 @@ will announce it.</p>
<li><a class="reference internal" href="#RNS.Destination.set_proof_strategy"><code class="docutils literal notranslate"><span class="pre">set_proof_strategy()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Destination.register_request_handler"><code class="docutils literal notranslate"><span class="pre">register_request_handler()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Destination.deregister_request_handler"><code class="docutils literal notranslate"><span class="pre">deregister_request_handler()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Destination.enable_ratchets"><code class="docutils literal notranslate"><span class="pre">enable_ratchets()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Destination.enforce_ratchets"><code class="docutils literal notranslate"><span class="pre">enforce_ratchets()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Destination.set_retained_ratchets"><code class="docutils literal notranslate"><span class="pre">set_retained_ratchets()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Destination.set_ratchet_interval"><code class="docutils literal notranslate"><span class="pre">set_ratchet_interval()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Destination.create_keys"><code class="docutils literal notranslate"><span class="pre">create_keys()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Destination.get_private_key"><code class="docutils literal notranslate"><span class="pre">get_private_key()</span></code></a></li>
<li><a class="reference internal" href="#RNS.Destination.load_private_key"><code class="docutils literal notranslate"><span class="pre">load_private_key()</span></code></a></li>

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@ -4,7 +4,7 @@
<meta name="viewport" content="width=device-width,initial-scale=1"/>
<meta name="color-scheme" content="light dark"><link rel="index" title="Index" href="genindex.html" /><link rel="search" title="Search" href="#" />
<meta name="generator" content="sphinx-5.3.0, furo 2022.09.29.dev1"/><title>Search - Reticulum Network Stack 0.7.6 beta documentation</title><link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<meta name="generator" content="sphinx-5.3.0, furo 2022.09.29.dev1"/><title>Search - Reticulum Network Stack 0.7.7 beta documentation</title><link rel="stylesheet" type="text/css" href="_static/pygments.css" />
<link rel="stylesheet" type="text/css" href="_static/styles/furo.css?digest=189ec851f9bb375a2509b67be1f64f0cf212b702" />
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@ -138,7 +138,7 @@
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<div class="header-center">
<a href="index.html"><div class="brand">Reticulum Network Stack 0.7.6 beta documentation</div></a>
<a href="index.html"><div class="brand">Reticulum Network Stack 0.7.7 beta documentation</div></a>
</div>
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<div class="theme-toggle-container theme-toggle-header">
@ -164,7 +164,7 @@
<img class="sidebar-logo" src="_static/rns_logo_512.png" alt="Logo"/>
</div>
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@ -6,7 +6,7 @@
<link rel="index" title="Index" href="genindex.html" /><link rel="search" title="Search" href="search.html" /><link rel="next" title="API Reference" href="reference.html" /><link rel="prev" title="Code Examples" href="examples.html" />
<meta name="generator" content="sphinx-5.3.0, furo 2022.09.29.dev1"/>
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<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
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@ -141,7 +141,7 @@
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<a href="index.html"><div class="brand">Reticulum Network Stack 0.7.6 beta documentation</div></a>
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</div>
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@ -167,7 +167,7 @@
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</div>
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<span class="sidebar-brand-text">Reticulum Network Stack 0.7.7 beta documentation</span>
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@ -6,7 +6,7 @@
<link rel="index" title="Index" href="genindex.html" /><link rel="search" title="Search" href="search.html" /><link rel="next" title="Communications Hardware" href="hardware.html" /><link rel="prev" title="Using Reticulum on Your System" href="using.html" />
<meta name="generator" content="sphinx-5.3.0, furo 2022.09.29.dev1"/>
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<title>Understanding Reticulum - Reticulum Network Stack 0.7.7 beta documentation</title>
<link rel="stylesheet" type="text/css" href="_static/pygments.css" />
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@ -141,7 +141,7 @@
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</div>
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@ -167,7 +167,7 @@
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</div>
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<span class="sidebar-brand-text">Reticulum Network Stack 0.7.7 beta documentation</span>
</a><form class="sidebar-search-container" method="get" action="search.html" role="search">
<input class="sidebar-search" placeholder="Search" name="q" aria-label="Search">
@ -360,10 +360,11 @@ be sufficient, even far into the future.</p>
<p>By default Reticulum encrypts all data using elliptic curve cryptography and AES. Any packet sent to a
destination is encrypted with a per-packet derived key. Reticulum can also set up an encrypted
channel to a destination, called a <em>Link</em>. Both data sent over Links and single packets offer
<em>Initiator Anonymity</em>, and links additionally offer <em>Forward Secrecy</em> by using an Elliptic Curve
Diffie Hellman key exchange on Curve25519 to derive per-link ephemeral keys. The multi-hop transport,
coordination, verification and reliability layers are fully autonomous and also based on elliptic
curve cryptography.</p>
<em>Initiator Anonymity</em>. Links additionally offer <em>Forward Secrecy</em> by default, employing an Elliptic Curve
Diffie Hellman key exchange on Curve25519 to derive per-link ephemeral keys. Asymmetric, link-less
packet communication can also provide forward secrecy, with automatic key ratcheting, by enabling
ratchets on a per-destination basis. The multi-hop transport, coordination, verification and reliability
layers are fully autonomous and also based on elliptic curve cryptography.</p>
<p>Reticulum also offers symmetric key encryption for group-oriented communications, as well as
unencrypted packets for local broadcast purposes.</p>
<p>Reticulum can connect to a variety of interfaces such as radio modems, data radios and serial ports,
@ -639,7 +640,7 @@ expect. Reticulum offers two ways to do this.</p>
<li><div class="line-block">
<div class="line">A packet is always created with an associated destination and some payload data. When the packet is sent
to a <em>single</em> destination type, Reticulum will automatically create an ephemeral encryption key, perform
an ECDH key exchange with the destination’s public key, and encrypt the information.</div>
an ECDH key exchange with the destination’s public key (or ratchet key, if available), and encrypt the information.</div>
</div>
</li>
<li><div class="line-block">
@ -927,7 +928,8 @@ A Reticulum packet is composed of the following fields:
[HEADER 2 bytes] [ADDRESSES 16/32 bytes] [CONTEXT 1 byte] [DATA 0-465 bytes]
* The HEADER field is 2 bytes long.
* Byte 1: [IFAC Flag], [Header Type], [Propagation Type], [Destination Type] and [Packet Type]
* Byte 1: [IFAC Flag], [Header Type], [Context Flag], [Propagation Type],
[Destination Type] and [Packet Type]
* Byte 2: Number of hops
* Interface Access Code field if the IFAC flag was set.
@ -959,12 +961,16 @@ type 1 0 Two byte header, one 16 byte address field
type 2 1 Two byte header, two 16 byte address fields
Context Flag
-----------------
unset 0 The context flag is used for various types
set 1 of signalling, depending on packet context
Propagation Types
-----------------
broadcast 00
transport 01
reserved 10
reserved 11
broadcast 0
transport 1
Destination Types
@ -1063,10 +1069,11 @@ both on general-purpose CPUs and on microcontrollers. The necessary primitives a
<li><p>Ed25519 for signatures</p></li>
<li><p>X25519 for ECDH key exchanges</p></li>
<li><p>HKDF for key derivation</p></li>
<li><p>Fernet for encrypted tokens</p>
<li><p>Modified Fernet for encrypted tokens</p>
<ul>
<li><p>AES-128 in CBC mode</p></li>
<li><p>HMAC for message authentication</p></li>
<li><p>No Version and Timestamp metadata included</p></li>
</ul>
</li>
<li><p>SHA-256</p></li>

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@ -6,7 +6,7 @@
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@ -141,7 +141,7 @@
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@ -262,12 +262,13 @@ considered complete and stable at the moment, but could change if absolutely war
<li><p>Complete initiator anonymity, communicate without revealing your identity</p></li>
<li><p>Asymmetric encryption based on X25519, and Ed25519 signatures as a basis for all communication</p></li>
<li><p>Forward Secrecy by using ephemeral Elliptic Curve Diffie-Hellman keys on Curve25519</p></li>
<li><p>Reticulum uses the <a class="reference external" href="https://github.com/fernet/spec/blob/master/Spec.md">Fernet</a> specification for on-the-wire / over-the-air encryption</p>
<li><p>Reticulum uses a modified version of the <a class="reference external" href="https://github.com/fernet/spec/blob/master/Spec.md">Fernet</a> specification for on-the-wire / over-the-air encryption</p>
<ul>
<li><p>All keys are ephemeral and derived from an ECDH key exchange on Curve25519</p></li>
<li><p>Keys are ephemeral and derived from an ECDH key exchange on Curve25519</p></li>
<li><p>AES-128 in CBC mode with PKCS7 padding</p></li>
<li><p>HMAC using SHA256 for authentication</p></li>
<li><p>IVs are generated through os.urandom()</p></li>
<li><p>No Version and Timestamp metadata included</p></li>
</ul>
</li>
<li><p>Unforgeable packet delivery confirmations</p></li>
@ -300,7 +301,8 @@ of the types of interfaces Reticulum was designed for.</p>
<p>An open-source LoRa-based interface called <a class="reference external" href="https://unsigned.io/rnode">RNode</a>
has been designed as an example transceiver that is very suitable for
Reticulum. It is possible to build it yourself, to transform a common LoRa
development board into one, or it can be purchased as a complete transceiver.</p>
development board into one, or it can be purchased as a complete transceiver
from various vendors.</p>
<p>Reticulum can also be encapsulated over existing IP networks, so there’s
nothing stopping you from using it over wired Ethernet or your local WiFi
network, where it’ll work just as well. In fact, one of the strengths of