Topic: [Edukasi] Privasi dan Anonimitas Bitcoin - page 3. (Read 2519 times)

-snip- tersisa 1319 Taproot blocks sebelum softfork. Jadi kira-kira kapan?-snip-

-snip- As described in detail in the release notes, miner block templates produced by this version of Bitcoin Core will signal readiness to enforce taproot during the roughly three month period specified by BIP341.

If, during that time, 90% of blocks within a 2,016 retarget period signal readiness, taproot will be locked in and this version of Bitcoin Core will begin enforcing the additional consensus rules specified in BIPs 341 and 342 at block 709,632, which is expected in early or mid November.

If miners don’t lock in taproot by the end of the three month signaling period, a separate attempt to activate it using another mechanism is expected to be tried. The activation mechanism has been designed so that, by roughly mid August, it will either provide us with an assurance that we’ll soon have taproot or immediately give us valuable information that users and developers can use to make the next activation attempt more likely to succeed.

Tidak terbalik mas? Itu di screenshot terbaru yang dicantumkan di atas, btc.com bukankah signalnya sekarang sudah hijau?

-snip- namun, btc.com dari sebelumnya hijau sekarang jadi merah.

Siapakah Unrecognized miners ini?, apa ini gabungan dari solo miners di seluruh dunia?.

We still have some unrecognized miners not signalling for Taproot readiness, but this the last known mining pool yes.

Proporsal Schnorr/taproot/tapscript telah di-Pull request ke Github Bitcoin 22 Januari 2020 dan telah di-Consesus. [Work in Progress] Implement BIP 340-342 validation (Schnorr/taproot/tapscript) #17977
-snip-

The signalling method works in periods of 2016 blocks, meaning that within a 2016 block period, 90%, or 1815 of the 2016 blocks have to signal for readiness.

Ya, saya pernah dengar soal blockchain itu yang terbuka dan dapat diakses semua orang. Saya pikir itu bisa akan mengatur semua bidang yang terkait uang. Contohny abidang perbankan yang udah lama mengunakan sistem blockchain. -snip-

Bedanya sirkuit transaksi di atas dengan coinjoin apaan om jadinya? Kok sekilas mirip dengan coinjoin yang dilakukan berulang kali. -snip-

-snip- Terus kalau cuma ada dua pihak, itu nanti kalau flipnya ga jadi switch apa tetap ga ketahuan karena input/output yang nilainya sama?

Abstract: Multi-signatures enable a group of signers to produce a single signature on a given message. Recently, Drijvers et al. (S&P'19) showed that all thus far proposed two-round multi-signature schemes in the DL setting (without pairings) are insecure under concurrent sessions, i.e., if a single signer participates in multiple signing sessions concurrently. While Drijvers et al. improve the situation by constructing a secure two-round scheme, saving a round comes with the price of having less compact signatures. In particular, the signatures produced by their scheme are more than twice as large as Schnorr signatures, which arguably are the most natural and compact among all practical DL signatures and are therefore becoming popular in cryptographic applications (e.g., support for Schnorr signature verification has been proposed to be included in Bitcoin). If one needs a multi-signature scheme that can be used as a drop-in replacement for Schnorr signatures, then one is either forced to resort to a three-round scheme such as MuSig (Maxwell et al., DCC 2019) or MSDL-pop (Boneh, Drijvers, and Neven, ASIACRYPT 2018), or to accept that signing sessions are only secure when run sequentially, which may be hard to enforce in practice, e.g., when the same signing key is used by multiple devices.

In this work, we propose MuSig2, a novel and simple two-round multi-signature scheme variant of the MuSig scheme. Our scheme is the first multi-signature scheme that simultaneously i) is secure under concurrent signing sessions, ii) supports key aggregation, iii) outputs ordinary Schnorr signatures, iv) needs only two communication rounds, and v) has similar signer complexity as regular Schnorr signatures. Furthermore, our scheme is the first multi-signature scheme in the DL setting that supports preprocessing of all but one rounds, effectively enabling a non-interactive signing process, without forgoing security under concurrent sessions. The combination of all these features makes MuSig2 highly practical. We prove the security of MuSig2 under the one-more discrete logarithm (OMDL) assumption in the random oracle model, and the security of a more efficient variant in the combination of the random oracle and algebraic group models.

Lalu tiba-tiba internet terputus atau mati lampu sebelum proses pencampuran selesai, bagaimana nasib 0.1 BTC tersebut?

tapi setidaknya substansial privacy dari coinjoin bisa dirasakan dengan lebih efektif (semakin banyak partisipan maka akan semakin banyak variasi input sehingga output dari transaksi tersebut akan semakin tersamarkan).

sedangkan yang testnet hanya berkisar 0.0001 tBtc dan hanya memerlukan 2 peers saja.

Kalau agan ga punya dana sebesar itu bisa nyoba Whirpoolnya Samourai Wallet. Minimum sekitar 0.01 BTC gan, ada pilihannya juga sampai 0.05 BTC seingat saya.

Whirlpool is different than other CoinJoin services, in that you do not pay a volume based fee per anonymity set, but instead you pay a one time flat fee for an unlimited anonymity set.

Btw itu benar Wasabi bisa coinjoin sampe 0.009 BTC? Apa typo?