secret-tree vs signature_to_keys vs uni_vault

Hierarchical secret derivation with Blake2b

A deterministic subkey derivation crate that signs human-readable strings using a master private key, hashes the signature via SHA-256 to generate a 256-bit seed, and produces various cryptographic key pairs (e.g., SSH ed25519, Ethereum wallets, curve25519-dalek keys).

uni_vault is a high-level Rust crate that provides secure vault functionality through advanced encryption methods. It leverages Trezor Ethereum signatures as a seed to generate SSH private keys and corresponding Rage key pairs, enabling asymmetric encryption and decryption operations. Built atop the signature_to_keys crate, uni_vault abstracts complex cryptographic processes into an accessible API, ensuring secure storage and management of sensitive data.