Trezor & Ledger hardware wallets to integrate SegWit

Trezor & Ledger hardware wallets are to integrate Segregated Witness
29 August 2017   1442

Trezor and Ledger, the two leading hardware wallet manufacturers and developers in the Bitcoin industry, have announced the integration of Segregated Witness.

Thus, on August 24th, Ledger became the first Bitcoin wallet to support SegWit

Ledger wallet to support SegWit Ledger wallet to support SegWit

Among other benefits of the activation, Ledger emphasized that SegWit drastically improves Bitcoin’s scalability and security of hardware wallets. 

Segwit introduces the concept of block weight which changes the way the transaction size is computed by splitting the signatures in a different area — you can typically save 35% of the fee paid when sending a transaction immediately.

Ledger team

On top of that, when computing a Segwit signature, the previous transactions do not need to be processed by the device, and each input is only processed once during the signature process, leading up to a 60% time optimization in the signature process.

Ledger wallet to support SegWit Trezor wallet to support SegWit

In its turn, Trezor's announcement had also been focused exclusively on the positive effects of Segregated Witness for the company and Bitcoin wallets in general.

It might seem to be a trivial change, but the security implications are large. The lower the amount of operations the hardware wallets need to do, the lower the probability of something going awry. Moreover, with SegWit, wallets do not sign each inputs separately anymore, but first they will hash all the inputs, and then sign the hash. With this method, the amount of operations the wallets have to do is decreased, and thus the transaction creation process is sped up.

Trezor team

Thus, SegWit transactions are designed in such a way that allows hardware wallets to get rid of the verification process altogether, as SegWit transactions will include the value of previous outputs in the signature of the transaction. The wallet thus does not need to request the previous transactions nor hash them anymore, saving precious time for users, the Terezor team details.

From a hardware wallet’s perspective there is no reason to delay SegWit activation. 

Trezor team to Mine for Charity

According to the calculations, if 10k computers will run the minning screensaver for 12 hours a day, the charity fund will receive $10k monthly
18 July 2018   99

Social platform for petitions announced the launch of a screensaver that mines Monero on users' computers. All tokens will be transferred to the charity fund of This is reported by Coindesk.

This initiative was launched in partnership with the marketing agency Tracelocke Brazil.

Representatives of report that the screensaver will consume resources only when users do not use the computer. According to their calculations, if 10 thousand computers will run the screensaver for 12 hours a day, the charity fund will be transferred $ 10 thousand monthly.

At the moment the program is available only for Windows users and the platform did not report on the release plans for the version for macOS.

Note that at the end of April, a similar action was launched by the Australian unit of the United Nations International Children's Emergency Fund; (UNICEF). The website "Page of Hope" mines Monero cryptocurrency.