Maximus Maximalistus
@maximalistus • 1,407 subscribers
Sovereignty Through Mathematics Tips: [email protected] Digital Art: https://t.co/u9HbKyR9tH https://t.co/FpQTN0208O
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What if you had the correct 24-word Bitcoin recovery phrase but still couldn't access your bitcoin? That's exactly what can happen when you use a BIP39 passphrase and forget it. A BIP39 passphrase isn't just another password protecting your wallet. It's part of the process that derives your wallet's cryptographic keys. The same recovery phrase combined with two different passphrases produces two completely different wallets. And here's the dangerous part: There is no "incorrect passphrase" warning. Every passphrase produces a valid wallet. A single typo can lead you to an entirely different set of addresses, with no sign of your bitcoin. Blockstream Jade helps you identify the wallet you've opened by displaying an 8-character fingerprint that you can compare against a previously recorded value. But that fingerprint doesn't replace your backup. Lose your passphrase, and your recovery phrase alone won't restore the wallet protected by it. A BIP39 passphrase can strengthen self-custody, but it also introduces another secret you must preserve. Security without a recovery plan can become a risk of its own. Watch Blockstream's Short: Jade documentation: Affiliate link bellow. Or just use coupon code "maximus".
Maximus Maximalistus30,692 次观看 • 6 天前
Blockstream Bitcoin Hardware Wallets have Anti-Exfil. Anti-Exfil adds another layer of security by forcing the device to include random data in signatures, preventing attackers from slowly guessing your private keys. With ECDSA (the digital signature algorithm used in Bitcoin), a random private key is combined with a nonce, which is a one-time value intended to add randomness to the signature to ultimately produce a transaction signature that can be validated by other users’ Bitcoin full nodes. Anyone can guess your private key based on your signatures without this random nonce, which is as bad as it sounds! Compromised hardware wallets could create a nonce that appears random but is not. The nonces could be known to an attacker ahead of time. Even worse, the hardware wallet could leak parts of the user’s master private key into individual nonces, which would allow the attacker to guess every private key given a sufficient number of signatures. Anti-Exfil uses “sign-to-contract” to ask Jade to use its signature nonce while cryptographically committing to some random data proposed by the (assumed uncompromised) host computer. The random data’s hash is then combined with the signature nonce to produce the signature. By use of this protocol, the nonce is re-randomized, thus preventing the attack. More info: 10% off on Blockstream store products with coupon "maximus". And the code JADEPLUSEXPRESS gets anyone free expedited shipping on a Jade Plus
Maximus Maximalistus28,668 次观看 • 2 个月前
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