# `RandomPassword`

Random Password generator.

`RandomPassword` creates a module for randomly generating strings with a specified number of
alpha, decimal and symbol characters. Symbols can be optionally specified.

# `entropy_bits`

```elixir
@spec entropy_bits(non_neg_integer(), non_neg_integer(), non_neg_integer(), map()) ::
  float()
```

Bits of entropy for password with `alpha` alpha chars, `decimal` decimal digits and `symbol`
symbol chars.

This function provides calculation of entropy bits without having to create a module.

The characters to be used for `alphas`, `decimals` and `symbols` can be specified as options;
o/w defaults are used.

## Example

    iex> RandomPassword.entropy_bits(12, 4, 2) |> Float.round(2)
    95.4

    iex> RandomPassword.entropy_bits(12, 4, 2, symbols: "!@#$%&") |> Float.round(2)
    90.95

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