Nheyo yezivo Pasi pehodhi

Protocol uye zviitiko

Izvo Nymchat inoisa chaizvo pawaya, kune chero munhu anovaka achipokana nazvo, kuiongorora, kana kuverenga zviitiko kubva kune mumwe mutengi weNostr.

Peji ino yakaturikirwa nemuchina kuti zvirerukire. ChiRungu chepakutanga ndiyo shanduro inoshanda.

Zviitiko mhando

Kind	Used for	Notes
`0`	Profile metadata	Standard Nostr mbiri: zita, mufananidzo, banner, nezve, `lud16`.
`5`	Zvikumbiro zvekudzima	NIP-09.
`7`	Reactions	NIP-25, ine a `['k', originalKind]` tag kuitira kuti mhinduro ifayerwe inopesana nemhando yechiteshi.
`13`	Chisimbiso	Chikamu chepakati cheNIP-17 meseji.
`14`	Runyerekupe rwemashoko ega	Haina kusaina, uye haina kumboburitswa yega.
`1059`	Chipo kuputira	NIP-59. Izvo chaizvo zvinosvika kune relay kune zvakavanzika mameseji uye chats dzeboka.
`1984`	Reporting	NIP-56.
`9734` / `9735`	Zap chikumbiro uye zap risiti	NIP-57.
`10030`	Tsika emoji pack zvinyorwa	NIP-30.
`20000`	Geohash chiteshi meseji	Ephemeral, tagged `['g', geohash]`.
`23333`	Yakapihwa chiteshi meseji	Ephemeral, tagged `['d', channel]`.
`24420` / `24421`	Public kutaipa zviratidzo uye kuverenga marisiti	Nymchat-chaiyo, yeruzhinji nzira.
`25051` / `25052`	Peer-to-peer signing uye faira-kutamisa mamiriro	Nymchat-specific.
`30030`	Custom emoji seti	NIP-30.
`30078`	Application data	NIP-78. Polls, uye encrypted zvigadziriso sync.
`69420`	Marisiti ekuverenga ega uye mamiriro ekutumira	Nymchat-specific, inotakurwa serunyerekupe mukati mekuputira chipo. Rudzi rwakasiyana kubva `14` nemaune, saka vamwe vatengi veNIP-17 havapi mameseji akatwasuka ega ega anotambira.

NIPs Nymchat zvishandiso

NIP	Izvo zvinopa Nymchat
NIP-07	Pinda nebrowser yekuwedzera.
NIP-09	Zvikumbiro zvekudzima.
NIP-13	Uchapupu hwebasa. Mameseji anobuda anocherwa kusvika 16 bits.
NIP-17	Yakavanzika meseji yakananga, uye hwaro hwekutaura kweboka.
NIP-25	Reactions.
NIP-30	Custom emoji.
NIP-40	Expiration timestamps - mameseji anonyangarika.
NIP-44	Versioned encryption, inoshandiswa zvisimbiso, kuputira uye kuseta sync.
NIP-46	Kusaina kure - `bunker://`.
NIP-56	Reporting.
NIP-57	Mheni zaps.
NIP-59	Chipo chinoputirwa.
NIP-78	Arbitrary application data.
NIP-98	HTTP auth, kune yakagarwa magumo.

Cryptography

Kupi	Chii
Identity uye masiginicha	secp256k1 ine Schnorr siginicha (BIP-340), sekutsanangurwa kwaNostr.
Mameseji epachivande uye chats dzeboka	NIP-44 v2: ECDH pa secp256k1, HKDF-SHA256, ChaCha20 ine HMAC-SHA256, uye padding kuti ciphertext kureba kurege kupa kureba kweshoko.
Bluetooth mesh zvikamu	Noise XX - X25519, ChaCha20-Poly1305 (IETF), Ed25519 yekuzivisa masiginecha, SHA-256 uye HMAC pasi.
Identity pakuzorora	AES-GCM-256. Kiyi inobva kuPBKDF2-SHA256 pa310,000 iterations yepassword kana PIN, kana kubva kuWebAuthn PRF inobuda kuburikidza neHKDF-SHA256 yepasskey kana biometric.
Kufona uye kufambisa mafaira	WebRTC's own DTLS-SRTP, yakataurirana pamusoro peNIP-17-yakaputirwa siginecha.
Randomness	Iyo chikuva CSPRNG mukati - makiyi, nonces, uye chipo-kupeta timestamp jitter.

Metadata kudzivirira

Zvinyorwa zviviri munzira yechipo-yekuputira zvakakodzera kushevedzera, nekuti ndizvo zvakapatsanura NIP-59 kubva ku "encrypted, asi zviri pachena kubva kwauri kuenda kwavari":

Kupeta kwese kunosainwa na imwe-nguva kiyi yakagadzirirwa meseji iyoyo chete, saka hapana mapeji maviri anogovera mutumi.
Kuputirwa kwese created_at ndizvo zvisina kurongeka kumashure kusvika maviri maawa uchishandisa CSPRNG, saka kutumira uye kugamuchira nguva haigone kurongedzerwa.

Hurukuro dzeboka dzinowedzera kutenderedza ephemeral mugamuchiri makiyi pamusoro pazvo - ona Mashandiro egroup encryption.

Kuverenga kwakabva

Iyo crypto primitives iri mukati js/nym-crypto.js uye js/modules/key-vault.js muwebhu app, uye pasi android-ios-app/lib/core/crypto/ uye lib/services/mesh/noise/ muFlutter app. The repository iri AGPL-3.0 uye yakakwana - hapana chikamu chakavharwa chekutora kuvimba.