Function generate_passphrase 

pub fn generate_passphrase() -> Result<String, String>

Generates 256-bit long passphrase

Examples

    use crypto_ext::passphrase::generate_passphrase;

    #[test]
    fn passphrase() {
        let passphrase = generate_passphrase().unwrap();
        assert_eq!(passphrase.len(), 64);
    }