Vulnerabilities Found in COLDCARD Hardware Wallet Firmware RNG
hardware_walletcryptocurrencysecurityvulnerabilityRNGcryptography
The post references a blog detailing vulnerabilities in the COLDCARD hardware wallet firmware. It identifies a predictable fallback mechanism in the random number generator (RNG) when the primary entropy source fails. Additionally, the firmware uses a 32-bit reseed value, which may reduce cryptographic security.