libbitcoin

Libbitcoin developer @evoskuil stated that the latest version of Libbitcoin Server can complete the initial block download of a Bitcoin full node in 55 minutes and perform full verification. This speed improvement comes from a new GPU-based signature verification system that runs in parallel with conventional script verification, rather than as a separate step.The software does not pause execution to verify each ECDSA and Schnorr signature; instead, it captures signature checks, batches them, and processes them via GPU while the remaining verification continues. @evoskuil indicated that this method achieves about a 99.5% signature capture rate without blocking verification, thus eliminating the need for a second verification. If a batch signature check fails, the software traces it back to the corresponding block and marks that block as invalid. He also mentioned that this design can batch process an almost arbitrary number of signatures, keeping the GPU ahead of the remaining verification process and significantly shortening the full node synchronization time.

ChainCatcher news, Binance founder Zhao Changpeng stated on social media that self-custody wallets are not risky, provided that one understands how to operate them. The vulnerabilities in the Libbitcoin Explorer 3.x version of cryptocurrency wallets stem from the random number generator of 32-bit seeds, which is not random enough in the face of modern cracking technologies (such as GPUs). Trust Wallet and Binance Wallet do not use this method in mnemonic phrase generation and are not affected by its related vulnerabilities.According to security company Slow Mist, Distrust has discovered a serious vulnerability affecting cryptocurrency wallets using the Libbitcoin Explorer 3.x version. This vulnerability allows attackers to access the wallet's private keys by cracking the Mersenne Twister pseudo-random number generator (PRNG). Known affected cryptocurrencies include Bitcoin, Ethereum, Ripple, Dogecoin, Solana, Litecoin, Bitcoin Cash, and Zcash. Slow Mist advises all users of the Libbitcoin Explorer 3.x version to immediately stop using the affected wallets and transfer their funds to secure wallets.