Hex-String

A data structure for managing hex strings and their binary byte vector representations.

lib.rs:

A utilty library for handling Hex strings

The digest operations in sha2 return the result as u8 vectors. But a lot of command line applicaions, like sha256sum, return byte strings. I was unable to find an obvious way to handle this in rust, so this module provides a clear well-defined HexString, loaders from a regular string of hex values and from a vector of bytes, and output representations in both forms.