extern crate rand;
extern crate sha2;
extern crate clear_on_drop;
extern crate byte_tools;
/// Utility functions such as constant time comparison.
/// HMAC (Hash-based Message Authentication Code) as specified in the [RFC 2104](https://tools.ietf.org/html/rfc2104).
/// HKDF (HMAC-based Extract-and-Expand Key Derivation Function) as specified in the [RFC 5869](https://tools.ietf.org/html/rfc5869).
/// API for the rest of orion.
/// Sha2 options.
/// PBKDF2