keymanagement

Documentation

Overview

Package keymanagement provides utilities for managing cryptographic keys, specifically focusing on EdDSA (Poseidon hash over BN128 elliptic curve signature scheme) keys derived from Ethereum private keys.

It includes functions for deriving EdDSA keys from Ethereum private keys, loading EdDSA keys from files, and saving EdDSA keys to files securely.

Index

• func DeriveEdDSAKeyFromEthereumPrivateKey(privateKey *ecdsa.PrivateKey) (babyjub.PrivateKey, error)
• func LoadEdDSA(file string) (babyjub.PrivateKey, error)
• func SaveEdDSA(file string, key babyjub.PrivateKey) error

Functions

func DeriveEdDSAKeyFromEthereumPrivateKey

func DeriveEdDSAKeyFromEthereumPrivateKey(privateKey *ecdsa.PrivateKey) (babyjub.PrivateKey, error)

DeriveEdDSAKeyFromEthereumPrivateKey derives an EdDSA (Poseidon hash over BN128 elliptic curve signature scheme) private key from an Ethereum private key. It signs a predefined message hash using the Ethereum private key and converts the resulting signature into an EdDSA private key for further use.

func LoadEdDSA

func LoadEdDSA(file string) (babyjub.PrivateKey, error)

LoadEdDSA loads a Baby Jubjub private key from the given file.

Source: https://github.com/ethereum/go-ethereum/blob/285202aae2a580b82f30ebd909c1819b22d90066/crypto/crypto.go#L194

func SaveEdDSA

func SaveEdDSA(file string, key babyjub.PrivateKey) error

SaveEdDSA saves a Baby Jubjub private key to the given file with restrictive permissions. The key data is saved hex-encoded.

Source: https://github.com/ethereum/go-ethereum/blob/285202aae2a580b82f30ebd909c1819b22d90066/crypto/crypto.go#L250