Method validate_key

bridge/src/client/cli/key_command.rs:190–192

(&self, key: &str)

    }

    fn validate_key(&self, key: &str) -> bool {
        key.len() == 64 && key.chars().all(|c| c.is_ascii_hexdigit())
    }

    // TODO: This is TBD. Verifying key validation is unclear at the moment.
    // We'll add it once circuit design is finalized and we can run a Groth16 setup.