Security • Estimated 65m

Exfiltration-Resistant Signing

security.exfiltration-resistant-signing

Exfiltration-resistant signing protocols prevent compromised signers from leaking key material through nonce channels. They are particularly important in multi-device and hardware-assisted setups.

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Curated resources (3)

• Bitcoin Optech Topic: Exfiltration-Resistant Signing (article) Threat model and protocol patterns for nonce hardening.
• BIP 340 Schnorr Signatures (article) Signature construction assumptions relevant to nonce leakage defense.
• Mastering Bitcoin (book) Key-management and signing model fundamentals for custody systems.

Direct prerequisites (1)

• Air-Gapped Signing

Direct dependents (0)

• None

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