# `EEVM.Crypto.RIPEMD160`
[🔗](https://github.com/mw2000/eevm/blob/v0.1.0/lib/eevm/crypto/ripemd160.ex#L1)

RIPEMD-160 in pure Elixir, as specified by Dobbertin, Bosselaers and
Preneel, ["RIPEMD-160: A Strengthened Version of RIPEMD"](https://homes.esat.kuleuven.be/~bosselae/ripemd160.html)
(1996). Used by the `0x03` precompile.

Each 64-byte block runs through two parallel lines of five 16-step
rounds, which are then combined into the 160-bit state. Words are
little-endian, like MD4's.

## Example

    iex> EEVM.Crypto.RIPEMD160.hash("abc") |> Base.encode16(case: :lower)
    "8eb208f7e05d987a9b044a8e98c6b087f15a0bfc"

# `hash`

```elixir
@spec hash(binary()) :: <<_::160>>
```

Returns the 20-byte RIPEMD-160 digest of `message`.

## Example

    iex> EEVM.Crypto.RIPEMD160.hash("") |> Base.encode16(case: :lower)
    "9c1185a5c5e9fc54612808977ee8f548b2258d31"

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*Consult [api-reference.md](api-reference.md) for complete listing*