Governments are back on their anti-encryption bullshit again. Between the U.S. Senate’s “EARN IT” Act, the E.U.’s slew of anti-encryption proposals, and Australia’s new anti-encryption law, it’s become clear that the authoritarians in office view online privacy as a threat to their existence. Normally, when the governments increase their anti-privacy sabre-rattling, technologists start talking more […]
In 2017, cryptography researchers from Kudelski Security demonstrated practical fault attacks against EdDSA (specifically Ed25519; RFC 8032). Their techniques are also applicable to Deterministic ECDSA (RFC 6979), and potentially work against any deterministic signature scheme (n.b. the Fiat-Shamir or Schnorr distinction isn’t meaningful in this context). Although that might seem alarming, fault attacks aren’t especially […]
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