Maziko a chidziwitso Pansi pa hood

Protocol ndi zochitika

Zomwe Nymchat imayika pawaya, kwa aliyense womanga motsutsana nazo, kuwunika, kapena kuwerenga zochitika kuchokera kwa kasitomala wina wa Nostr.

Tsambali lamasuliridwa pamakina kuti zikhale zosavuta. Chingelezi choyambirira ndi chomwe chimagwira ntchito.

Mitundu ya zochitika

Zokoma	Zogwiritsidwa ntchito	Zolemba
`0`	Mbiri ya metadata	Mbiri ya Standard Nostr: dzina, chithunzi, mbendera, pafupifupi, `lud16`.
`5`	Zopempha zochotsa	NIP-09.
`7`	Zochita	NIP-25, ndi a `['k', originalKind]` tag kuti mayankho afayidwe motsutsana ndi njira yoyenera.
`13`	Chisindikizo	Chigawo chapakati cha uthenga wa NIP-17.
`14`	Mphekesera zachinsinsi	Zosayinidwa, ndipo sizinasindikizidwe zokha.
`1059`	Kukulunga kwamphatso	NIP-59. Zomwe zimafika pakupatsirana kwa mauthenga achinsinsi ndi macheza amagulu.
`1984`	Lipoti	NIP-56.
`9734` / `9735`	Pempho la Zap ndi chiphaso cha zap	NIP-57.
`10030`	Mindandanda yapaketi ya emoji	NIP-30.
`20000`	Uthenga wa Geohash	Ephemeral, tagged `['g', geohash]`.
`23333`	Uthenga wotchulidwa panjira	Ephemeral, tagged `['d', channel]`.
`24420` / `24421`	Zizindikiro zolembera pagulu ndi malisiti owerengera	Nymchat-specific, yamatchanelo agulu.
`25051` / `25052`	Kusainira kwa anzawo ndi kusamutsa mafayilo	Nymchat-mwachindunji.
`30030`	Makasitomala a emoji	NIP-30.
`30078`	Zambiri zamapulogalamu	NIP-78. Mavoti, ndi kulunzanitsa zosintha zobisika.
`69420`	Malisiti owerengera achinsinsi komanso mawonekedwe otumizira	Nymchat-mwachindunji, yotengedwa ngati mphekesera mkati mwa chokulunga champhatso. Mtundu wosiyana ndi `14` dala, kotero kuti makasitomala ena a NIP-17 samapereka mauthenga achindunji opanda kanthu pa risiti iliyonse.

NIPs Nymchat zida

NIP	Zomwe zimapatsa Nymchat
NIP-07	Lowani ndi msakatuli wowonjezera.
NIP-09	Zopempha zochotsa.
NIP-13	Umboni wa ntchito. Mauthenga otuluka amakumbidwa mpaka ma bits 16.
NIP-17	Mauthenga achinsinsi, komanso maziko a macheza amagulu.
NIP-25	Zochita.
NIP-30	Emoji mwamakonda.
NIP-40	Zizindikiro zotha ntchito - mauthenga osowa.
NIP-44	Kubisa kosinthidwa, komwe kumagwiritsidwa ntchito ngati zisindikizo, zokutira ndi kulunzanitsa makonda.
NIP-46	kusaina kutali - `bunker://`.
NIP-56	Lipoti.
NIP-57	Mphezi zaps.
NIP-59	Zovala zamphatso.
NIP-78	Zambiri zamagwiritsidwe ntchito mwachisawawa.
NIP-98	HTTP auth, pazotsatira zomwe zasungidwa.

Zojambulajambula

Kuti	Chani
Identity ndi ma signature	secp256k1 ndi ma signature a Schnorr (BIP-340), monga Nostr amanenera.
Mauthenga achinsinsi komanso macheza amagulu	NIP-44 v2: ECDH pa secp256k1, HKDF-SHA256, ChaCha20 yokhala ndi HMAC-SHA256, ndi padding kotero kuti kutalika kwa mawu sikupereka kutalika kwa uthenga.
Bluetooth mesh magawo	Noise XX — X25519, ChaCha20-Poly1305 (IETF), Ed25519 polengeza siginecha, SHA-256 ndi HMAC pansi.
Identity pa mpumulo	AES-GCM-256. Kiyi imachokera ku PBKDF2-SHA256 pa 310,000 iterations ya mawu achinsinsi kapena PIN, kapena kuchokera ku WebAuthn PRF yotulutsa kudzera pa HKDF-SHA256 ya passkey kapena biometric.
Kuyimba ndi kusamutsa mafayilo	WebRTC's DTLS-SRTP yake, yokambirana pa siginecha yokutidwa ndi NIP-17.
Mwachisawawa	Pulatifomu CSPRNG ponseponse - makiyi, ma nonces, ndi jitter yokulunga nthawi yanthawi.

Chitetezo cha metadata

Zambiri ziwiri munjira yokulunga-mphatso ndizofunikira kuyitanitsa, chifukwa ndizomwe zimasiyanitsa NIP-59 kuchokera ku "encrypted, koma mwachiwonekere kuchokera kwa inu kupita kwa iwo":

Chovala chilichonse chimasainidwa ndi a kiyi yanthawi imodzi kupangidwa kwa meseji yokhayo, kotero palibe zokulunga ziwiri zomwe zimagawana wotumiza.
Chovala chilichonse created_at ndi kusinthidwa mwachisawawa mpaka awiri maola pogwiritsa ntchito CSPRNG, kotero kutumiza ndi kulandira nthawi sikungapangidwe.

Macheza amagulu amawonjezera ma ephemeral ozungulira wolandira makiyi pamwamba pa izo - onani Momwe kubisa kwamagulu kumagwirira ntchito.

Kuwerenga gwero

Zoyamba za crypto zili mkati js/nym-crypto.js ndi js/modules/key-vault.js mu pulogalamu yapaintaneti, ndi pansi android-ios-app/lib/core/crypto/ ndi lib/services/mesh/noise/ mu pulogalamu ya Flutter. The posungira ndi AGPL-3.0 ndipo wathunthu - palibe chigawo chotsekedwa kuti mukhulupirire.