zbase32
pub fn decode_str(zbase32: &str, bits: u64) -> Result<Vec<u8>, &'static str>
Decode first N bits of given zbase32 encoded string
bits
Panics if zbase32 decoded is shorter than N bits.
use zbase32; assert_eq!(zbase32::decode_str("o", 1).unwrap(), &[0x80]);