security1 publisher
Host-controlled storage rollback can make TEE-hosted threshold signers leak key shares
Trail of Bits says a malicious host could roll back a TEE-hosted threshold signer's storage and force nonce reuse that leaks its private key share. The firm's advice is to keep the protocol sound without the enclave and tie attestation to each MPC party's identity.
Publishers:blog.trailofbits.com
Reality
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