Avalanche Bridge Wallet Address Change: What You Need to Know

The Avalanche Bridge nodes perform periodic key rollovers as a routine proactive security measure, including whenever new nodes are added or removed. The Avalanche Bridge utilizes SGX so that no one has access to the bridge keys. The keys that facilitate the movement of funds are generated and stored in a secure enclave on special chips where nobody, not even a node admin, can gain access to them. The keys never leave the secure enclave, the execution paths of the bridge code cannot be modified, and attestations are provided to the hash of the code inside the secure enclave. Together, this ensures bridge integrity, confidentiality, and assurance against byzantine behaviors. Since a single copy of the keys would be vulnerable to a catastrophic hardware failure, the keys are backed up. Ordinary backups, where data is just replicated, are not suitable for cryptographic keys. The Avalanche Bridge employs a state-of-the-art key backup scheme where key material is first split through...
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