LoadOrCreateIdentityPrivateKey loads an existing Ed25519 based identity private key or creates a new one and stores it as a PEM file in the identityFilePath.

ParseEd25519PrivateKeyFromString parses an Ed25519 private key from a hex encoded string.

ReadEd25519PrivateKeyFromPEMFile reads an Ed25519 private key from a file with PEM format.

WriteEd25519PrivateKeyToPEMFile stores an Ed25519 private key to a file with PEM format.

Errors.