Crate async_hash

Provides traits Hash, HashStream, and HashTryStream for SHA-2 hashing data which must be accessed asynchronously, e.g. a [Stream] or database table.

Hash is implemented for standard Rust types:

• Primitive types:
  • bool
  • i8, i16, i32, i64, i128, isize
  • u8, u16, u32, u64, u128, usize
  • f32, f64
  • &str
  • String
• Common standard library types:
  • Option<T>
  • PhantomData<T>
• Compound types:
  • [T; 0] through [T; 32]
  • tuples up to size 16
• Collection types:
  • BTreeMap<K, V>
  • BTreeSet<T>
  • BinaryHeap<T>
  • LinkedList<T>
  • VecDeque<T>
  • Vec<T>
• Other types:
  • SmallVec<V> (requires the smallvec feature flag)

IMPORTANT: hashing is order-dependent. Do not implement the traits in this crate for any data structure which does not have a consistent order. Consider using the collate crate if you need to use a type which does not implement Ord.

Re-exports

• pub use sha2::digest::generic_array;

Traits

• Digest
  Convenience wrapper trait covering functionality of cryptographic hash functions with fixed output size.
• Hash
  Trait to compute a SHA-2 hash using the digest type D

Functions

• default_hash
  Construct an empty hash
• hash_stream
  Hash a [Stream]
• hash_try_stream
  Hash a [TryStream]

Type Aliases

• Output
  Output array of [OutputSizeUser] implementors.
• Sha256
  SHA-256 hasher.