Struct EncryptionConfig 

pub struct EncryptionConfig {
    pub signature: &'static [u8; 8],
    pub format_version: u8,
    pub nonce_size: usize,
    pub key_size: usize,
    pub compression: Compression,
}

Configuration structure for encryption settings. This structure defines the parameters used for AES-GCM encryption, including the signature, format version, nonce size, key size, and compression settings.

Fields

signature: &'static [u8; 8]

Fixed signature to identify the format.

format_version: u8

Current version of the format.

nonce_size: usize

Size of the nonce (12 bytes for AES-GCM).

key_size: usize

Size of the symmetric key (32 bytes for AES-256).

compression: Compression

Compression level for Gzip.

Implementations

impl EncryptionConfig

pub fn new() -> Self

Creates a new instance of the encryption configuration with default values.

pub fn init_cipher(&self, key_data: &[u8]) -> Result<Aes256Gcm, String>

Initializes the AES-GCM cipher with the provided key.

Arguments

• key_data - A byte slice containing the encryption key.

Returns

• Ok(Aes256Gcm) - The initialized AES-GCM cipher.
• Err(String) - An error message if the key size is invalid.

pub fn generate_nonce(&self) -> Nonce<U12>

Generates a random nonce for AES-GCM encryption.

Returns

• Nonce<U12> - A randomly generated nonce of 12 bytes.

pub fn init_compressor(&self) -> GzEncoder<Vec<u8>>

Initializes a Gzip compressor with the specified compression level.

Returns

• GzEncoder<Vec<u8>> - A Gzip encoder for compressing data.

Trait Implementations

impl Default for EncryptionConfig

fn default() -> Self

Returns the “default value” for a type.