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● Weak signature nonces discovered: a preprint paper by researchers Joachim Breitner and Nadia Heninger describes how they discovered hundreds of Bitcoin private keys by looking for signatures generated using nonces with less than the expected entropy of 256 bits. Some dApps, such as PancakeSwap, allow you to connect using Trust Wallet. Now, it only takes a few clicks to move your funds from Binance Pay and into the world of DApps that Trust Wallet unlocks. Spontaneous payments help in cases where users just want to do ad hoc payment tracking, for example you initiate a 10 mBTC withdrawal from an exchange and either 10 mBTC shows up in your balance within a few moments or you contact support. If the node doesn’t return an error, it likely means that it or some other node along a payment path to it is offline and unable to process payments. This week’s newsletter describes a proposed LN feature to allow making spontaneous payments and provides our longest-ever list of notable code changes to popular Bitcoin infrastructure projects. This week’s newsletter describes the new libminisketch library for bandwidth efficient set reconciliation, links to an email about Schnorr/Taproot plans, and mentions an upcoming LN protocol specification meeting.

This week’s newsletter announces a security upgrade for C-Lightning, describes a paper and additional research into wallets that accidentally revealed their private keys, and lists some notable code changes in popular Bitcoin infrastructure projects. 2230 updates the listpeers RPC’s "channel" output to include a private flag indicating whether the channel is being announced to peers on not. An early estimate using a simulator indicates combining sketches with shortened transaction identifiers (for relay only) could reduce total transaction propagation bandwidth by a factor of 44x. Sketches also have the potential to provide other desirable features-for example, LN protocol developer Rusty Russell started a thread on the Lightning-Dev mailing list about using them for sending LN routing table updates. Keyboard Shortcuts enable you to navigate between components or perform tasks without using a pointing device. Keyboard Shortcuts is only available on the Binance Desktop App. If you have the most basic type of Binance account (VIP 0), both the maker and taker fee is 0.1%. However, if you hold some BNB and pay your fees with it, both the maker and taker fees drop to 0.075% (25% off). This takes advantage of LN’s Tor-like onion routing by allowing a spender to choose a preimage, encrypt it so that only the receiver’s node can decrypt it, and then route a payment along LN like normal using the hash of the preimage.

About 97% of the faulty signatures found in the paper are compatible with Maxwell’s Copay hypothesis, and the paper provides plausible explanations for most of the remaining 3% of signatures, indicating that users of modern wallets are probably safe provided they do not continue to use addresses whose bitcoins they spent using earlier vulnerable programs. To sign up for Binance, simply create a free account using your email address and a password. You will also receive email and SMS notifications. ● Description about what might be included in a Schnorr/Taproot soft fork: Bitcoin protocol developer Anthony Towns has posted a well-written email describing what he thinks ought to be included in a soft fork that adds the Schnorr signature scheme plus Taproot-style MAST to Bitcoin. ● Upgrade to C-Lightning 0.6.3: this release fixes a remote DoS vulnerability that could be used to crash C-Lightning nodes and potentially steal money. Note, though, that the attacker must risk their own money to attempt the attack, and so nodes can pretend to be offline in order to take money from any attackers-which is hoped to be enough of a risk to discourage most attacks. When the payment reaches the receiver, they decrypt the preimage and disclose it to the routing nodes in order to claim the payment.

This update to Eclair only allows probing a node’s direct peers-the nodes with which Eclair has an open channel. Or you just publish your node’s More Information and facts and users can send you donations without having to get an invoice first. ● PR opened for spontaneous LN payments: LN protocol developer Olaoluwa Osuntokun opened a pull request to allow an LN node to send a payment to another node without first receiving an invoice. The same pull request also causes the invoice RPC to include route hints for private channels if you have no public channels unless you also set the new exposeprivatechannels parameter to false. Some are stored on private systems, like personal computers. When you buy Bitcoin via an exchange, ATM, or a peer-to-peer trading site, you are essentially a HODLer. Consumers need to know what a currency can buy when they make spending decisions. These sketches can provide a powerful new way to optimize relay of unconfirmed transactions for the Bitcoin P2P network. Osuntokun’s pull request for LND is still marked as a work in progress as of this writing, so we don’t know yet when the feature will become generally available to LND users or whether other LN implementations will also provide the same feature in a compatible way.