Series: Zero to Zero Knowledge
Ɛnnɛ yɛhwɛ Lelantus!
Wɔyii no adi wɔ afe 2019 mu, saa protocol yi si Zerocoin so. Wɔde di dwuma wɔ Firo sika (kan no na wɔfrɛ no Zcoin) mu de ma kokoam on-chain nkitahodi tumi yɛ adwuma. Ɛte sɛ Zcash wɔ akwan bi so nanso ɛsono no pefee wɔ afã dodow no ara mu.
Te sɛ Zcash no, Firo de address ahorow a wɔabɔ ho ban di dwuma de tua sika a wɔmmɔ din.
Bere nhyehyɛe:
Na Σ (Sigma) protocol a wɔde dii dwuma wɔ Zcoin/Firo nkyerɛase ahorow a atwam no mu no wɔ anohyeto kɛse: na wɔn a wɔde di dwuma no betumi ayɛ mint fixed denominations nkutoo.
Eyi maa anonymity sets nketewa bae na ebuee ɔpon maa bere ntua wɔ mint ne redeem adwumayɛ ntam (ne "tainted change" haw no).
Lelantus di fixed denomination asɛm no ho dwuma denam mints a wɔma ho kwan fi set kɛse biako mu no so.
Mfaso atitiriw a ɛwɔ so:
Anohyeto: Set size mprempren wɔahyɛ no 65,000 sika.
sika bɔhyɛ yɛ bɔhyɛ a wɔde anifurae abien ahyɛ mu a ɛkyerɛw sika no serial nɔma ne sika no bo.
Eyinom yɛ adwuma te sɛ Notes wɔ Zcash mu.
Wɔtintim sika no bɔhyɛ no na wɔkora so wɔ ledger no so bere a wɔabɔ sika no (ɛnam Mint anaa Spend nkitahodi so).
Lelantus de basecoin a wɔagye din no di dwuma < - > zerocoin nhwɛsoɔ.
Adeɛ a ɛho hia: Afei de agyede fã bi ayɛ yie berɛ a wɔde nea aka ne sika dodoɔ no sie.
Te sɛ Zcash no, ɛsɛ sɛ nea ɔde di dwuma no paw nkitahodi a ɛda adi pefee.
Lelantus de One-of-Many Proofs di dwuma de yi input values a ɛho hia ma adanse a ɛkyerɛ sɛ ɛkari pɛ a ɛnna input no mfiase adi - na enhia sɛ wɔyɛ nhyehyɛe a wotumi de ho to so.
Wɔde saa adanseɛ yi nso di dwuma wɔ Triptych (wɔaka ho asɛm wɔ yɛn CryptoNote thread no mu).
Firo nodes de Network Magic koro no ara di dwuma sɛ Zcash Magicbean.
Te sɛ Monero no, Firo de Dandelion++ dii dwuma de kokoamsɛm kaa ho denam IP address a ɔde bɛkata asɛm no ho amanneɛbɔfo no so.
Dandelion ++ fa ahorow:
Eyi ma ɛyɛ den kɛse sɛ wobɛhwehwɛ baabi a asɛm bi fi bae denam nkitahodi nhyehyɛe mu nhwehwɛmu so.
Lelantus-Spark (wɔayɛ nhyehyɛɛ ama akyiri yi 2023) de akwan mmienu a wɔfa so hu opt-in a wɔde ZIP-32 style derivation ne address ahodoɔ di dwuma ba.
Ɛbɛsan nso de mmoa aka ho ama:
Saa nneɛma yi ne Zcash Shielded Assets di nsɛ.
Mfitiaseɛ Nhama a ZecHub (@ZecHub) kyerɛwee https://x.com/ZecHub/status/1641902859800150017
Wɔboaboaa krataafa yi ano fii mfitiase Zero to Zero Knowledge thread no mu maa ZecHub wiki.