# Struct ring::agreement::EphemeralPrivateKey [−] [src]

    pub struct EphemeralPrivateKey { /* fields omitted */ }

An ephemeral private key for use (only) with `agree_ephemeral`. The signature of `agree_ephemeral` ensures that an `EphemeralPrivateKey` can be used for at most one key agreement.

## Methods

### `impl<'a> EphemeralPrivateKey`
[src]

#### `fn generate(
alg: &'static Algorithm,
rng: &SecureRandom
) -> Result<EphemeralPrivateKey, Unspecified>`

Generate a new ephemeral private key for the given algorithm.

C analog: `EC_KEY_new_by_curve_name` + `EC_KEY_generate_key`.

#### `fn algorithm(&self) -> &'static Algorithm`

The key exchange algorithm.

#### `fn public_key_len(&self) -> usize`

The size in bytes of the encoded public key.

#### `fn compute_public_key(&self, out: &mut [u8]) -> Result<(), Unspecified>`

Computes the public key from the private key's value and fills `out` with the public point encoded in the standard form for the algorithm.

`out.len()` must be equal to the value returned by `public_key_len`.

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