Verifiable Backup

Create an encrypted backup of the server's key share using a verifiable encryption scheme. This advanced feature allows for the generation of a secure backup of the server keyshare that can be publicly verified by the mobile, without compromising the encrypted data. Key aspects include:

• Encryption of the server's secret share for secure storage
• Public verifiability of the backup's correctness without decryption
• Assurance that the backed-up share corresponds to the active MPC wallet
• Enhanced disaster recovery capabilities while maintaining security

This mechanism provides a crucial balance between backup accessibility and continued protection of the distributed key, offering a robust solution for secure key recovery in case of server failure or loss.