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// Copyright (c) Facebook, Inc. and its affiliates. // // This source code is licensed under the MIT license found in the // LICENSE file in the root directory of this source tree. //! A convenience trait for digest bounds used throughout the library use digest::{BlockInput, FixedOutput, Reset, Update}; /// Trait inheriting the requirements from digest::Digest for compatibility with HKDF and HMAC // Associated types could be simplified when they are made as defaults: // https://github.com/rust-lang/rust/issues/29661 pub trait Hash: Update + BlockInput + FixedOutput + Reset + Default + Clone {} impl<T: Update + BlockInput + FixedOutput + Reset + Default + Clone> Hash for T {}