# Struct ring::aead::chacha20_poly1305_openssh::SealingKey [−] [src]

    pub struct SealingKey { /* fields omitted */ }

A key for sealing packets.

## Methods

### `impl SealingKey`
[src]

#### `fn new(key_material: &[u8; 64]) -> SealingKey`

Constructs a new `SealingKey`.

#### `fn seal_in_place(
&self,
sequence_number: u32,
plaintext_in_ciphertext_out: &mut [u8],
tag_out: &mut [u8; 16]
)`

Seals (encrypts and signs) a packet.

On input, `plaintext_in_ciphertext_out` must contain the unencrypted `packet_length||plaintext` where `plaintext` is the `padding_length||payload||random padding`. It will be overwritten by `encrypted_packet_length||ciphertext`, where `encrypted_packet_length` is encrypted with `K_1` and `ciphertext` is encrypted by `K_2`.

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