Enlarge (credit: Saleem Rashid) For years, executives at France-based Ledger have boasted their specialized hardware for storing cryptocurrencies is so securely designed that resellers or others in the supply chain can't tamper with the devices without it being painfully obvious to end users. The reason: "cryptographic attestation" that uses unforgeable digital signatures to ensure that only authorized code runs on the hardware wallet. "There is absolutely no way that an attacker could replace the firmware and make it pass attestation without knowing the Ledger private key," officials said in 2015.
A “tamper-proof” Currency Wallet Just Got Trivially Backdoored By A 15-year-old
Dan Goodin, Ars Technica
Wed, 03/21/2018 - 4:15am
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