Changes for page Networks

Summary

• Page properties (1 modified, 0 added, 0 removed)

Details

Page properties

Content

...	...	@@ -1,3 +1,13 @@
	1	+(% class="jumbotron" %)
	2	+(((
	3	+(% class="container" %)
	4	+(((
	5	+= Peer-for-Peer Networks =
	6	+
	7	+P4P, short for Peer-4-Peer (which in turn is short for Peer-for-Peer) are a family of networks which build on principles of local-first, peer-2-peer, open-source, routing agnostic (offline-first) and mutual-aid principles. The above is a lot of terms which in and of themselves carry a lot of meaning, yet when combined they enable censorship-resistant, resilient and adaptive, sustainable and energy-efficient communication infrastructures.
	8	+)))
	9	+)))
	10	+
1	1	(% class="box" %)
2	2	(((
3	3	This page contains an overview of all P4P Networks in this wiki and their building blocks.
...	...	@@ -8,14 +8,12 @@
8	8
9	9
10	10
	21	+(((
	22	+{{toc/}}
	23	+)))
11	11
	25	+(((
12	12
13		-
14		-
15		-
16		-
17		-
18		-
19	19	== Building Blocks of P4P Networks ==
20	20
21	21
...	...	@@ -72,77 +72,92 @@
72	72	* Examples: PKI, Distributed Identities (DIDs), Web-of-Trust, TOFU (SSH-style), Verifiable Credentials (VCs), Peer key fingerprints (libp2p PeerIDs), Key transparency logs
73	73
74	74
	83	+
75	75	==== **6. Transport Layer** ====
76	76
77	77	> This layer provides logical connections and flow control. QUIC and WebRTC bring modern congestion control and encryption defaults; Interpeer explores transport beyond IP assumptions.
78	78
79		-* How do peers establish end-to-end byte streams and reliable delivery?
	88	+* //How do peers establish end-to-end byte streams and reliable delivery?//
80	80	* Examples: TCP, UDP, QUIC, SCTP, WebRTC DataChannels, Interpeer transport stack
81	81
82	82
	92	+
83	83	==== **7. Underlying Transport (Physical/Link Layer)** ====
84	84
85	85	> Highly relevant for **offline-first / edge networks**, device-to-device communication, and mesh networks and relates to the hardware which facilitates connections.
86	86
87		-* How does data move across the medium?
	97	+* //How does data move across the medium?//
88	88	* Examples: Ethernet, Wi-Fi Direct / Wi-Fi Aware (post-AWDL), Bluetooth Mesh, LoRa, NFC, Cellular, CSMA/CA, TDMA, FHSS
89	89
	100	+
	101	+
90	90	==== **8. Session & Connection Management** ====
91	91
92	92	> Manages **connection lifecycle**, including authentication handshakes, reconnection after drops, and session continuation—especially important in lossy or mobile networks.
93	93
94		-* How are connections initiated, authenticated, resumed, and kept alive?
	106	+* //How are connections initiated, authenticated, resumed, and kept alive?//
95	95	* Examples: TLS handshake semantics, Noise IK/XX patterns, session tokens, keep-alive heartbeats, reconnection strategies, session resumption tickets
96	96
97	97
	110	+
98	98	==== **9. Content Addressing** ====
99	99
100	100	> Content addressing ensures **immutability, verifiability, and deduplication**. Identity of data = cryptographic hash, enabling offline-first and tamper-evident systems.
101	101
102		-* How is data addressed and verified by content, not location?
	115	+* //How is data addressed and verified by content, not location?//
103	103	* Examples: IPFS CIDs, BitTorrent infohashes, Git hashes, SHA-256 addressing, Named Data Networking (NDN)
104	104
	118	+
	119	+
105	105	==== **10. P2P Connectivity** ====
106	106
107		-> Connectivity ensures peers bypass NATs/firewalls to reach each other.
	122	+> Connectivity ensures peers bypass NATs/firewalls to reach each other.
108	108
109		-* How can two peers connect directly across networks, firewalls, and NATs?
	124	+* //How can two peers connect directly across networks, firewalls, and NATs?//
110	110	* Examples: IPv6 direct, NAT Traversal, STUN, TURN, ICE (used in WebRTC), UDP hole punching, UPnP
111	111
	127	+
	128	+
112	112	==== **11. Session & Connection Management** ====
113	113
114	114	> Manages **connection lifecycle**, including authentication handshakes, reconnection after drops, and session continuation.
115	115
116		-* How are connections initiated, authenticated, resumed, and kept alive?
	133	+* //How are connections initiated, authenticated, resumed, and kept alive?//
117	117	* Examples: TLS handshake semantics, Noise IK/XX patterns, session tokens, keep-alive heartbeats, reconnection strategies, session resumption tickets
118	118
	136	+
	137	+
119	119	==== **12. Message Format & Serialization** ====
120	120
121	121	> Serialization ensures **portable data representation**, forward-compatible schemas, and efficient messaging. IPLD provides content-addressed structuring for P2P graph data.
122	122
123		-* How is data encoded, structured, and made interoperable between peers?
	142	+* //How is data encoded, structured, and made interoperable between peers?//
124	124	* Examples: CBOR, Protocol Buffers, Cap’n Proto, JSON, ASN.1, IPLD schemas, Flatbuffers
125	125
	145	+
	146	+
126	126	==== **13. File / Blob Synchronization** ====
127	127
128	128	> Bulk data syncing has **different trade-offs** than small collaborative state (chunking, deduplication, partial transfer, resume logic). Critical for media and archival P2P use-cases.
129	129
130		-How are large objects transferred and deduplicated efficiently across peers?
	151	+//How are large objects transferred and deduplicated efficiently across peers?//
131	131	Examples: BitTorrent chunking, IPFS block-store, NDN segments, rsync-style delta sync, ZFS send-receive, streaming blob transfers
132	132
	154	+
133	133	==== **14. Local Storage & Processing Primitives** ====
134	134
135	135	> Provides durable on-device state and local computation (event sourcing, materialization, compaction). Enables offline-first writes and deterministic replay.
136	136
137		-* How do nodes persist, index, and process data locally—without external servers?
	159	+* //How do nodes persist, index, and process data locally—without external servers?//
138	138	* Examples: RocksDB, LevelDB, SQLite, LMDB, local WALs/append-only logs, embedded stream processors (NATS Core JetStream mode, Actyx-like edge runtimes), Kafka-like libraries
139	139
140	140
	163	+
141	141	==== **15. Crash Resilience & Abortability** ====
142	142
143	143	> Ensures P2P apps don’t corrupt state on crashes. Tied to **local storage & stream-processing**, and critical in offline-first and distributed update pipelines. Abortability is the updated term for Atomicity as part of the ACID abbreviation.
144	144
145		-* How do nodes recover and maintain correctness under failure?
	168	+* //How do nodes recover and maintain correctness under failure?//
146	146	* Examples: WALs, idempotent ops, partial log replay, transactional journaling, write fences
147	147
148	148
...	...	@@ -154,7 +154,24 @@
154	154	[[Flowchart depicting distributed network variants, under development. Building on work from Z. Elfen, 2024: ~[~[https:~~~~/~~~~/doi.org/10.17613/naj7d-6g984~>~>https://doi.org/10.17613/naj7d-6g984~]~]>>image:P4P_Typology.png||alt="Flowchart depicting typologies of distributed networks, such as Friend-2-Friend, Grassroots Networks, Federated Networks, Local-First, P2P and P4P Networks" data-xwiki-image-style-alignment="center" height="649" width="639"]]
155	155
156	156
	180	+
	181	+)))
157	157
	183	+
	184	+(% class="col-xs-12 col-sm-4" %)
	185	+(((
	186	+{{box title="==== Contents ====
	187	+
	188	+====== ======"}}
	189	+{{toc depth="3"/}}
	190	+{{/box}}
	191	+)))
	192	+
	193	+
	194	+(((
158	158	== Overview of P4P Networks ==
159	159
160	160	{{include reference="Projects.WebHome"/}}
	198	+)))
	199	+
	200	+