Struct Grasshopper 

pub struct Grasshopper { /* private fields */ }

Kuznyechik (Grasshopper) block cipher — RFC 7801 / GOST R 34.12-2015.

128-bit block, 256-bit key. Pure Rust, no unsafe, no heap allocation.

Implementations

impl Grasshopper

pub fn new(key: &[u8; 32]) -> Self

Construct from a 32-byte (256-bit) key.

pub fn new_wiping(key: &mut [u8; 32]) -> Self

Construct from a 32-byte key and wipe the provided key buffer.

pub fn encrypt_block(&self, block: &[u8; 16]) -> [u8; 16]

Encrypt a 128-bit block (ECB mode).

pub fn decrypt_block(&self, block: &[u8; 16]) -> [u8; 16]

Decrypt a 128-bit block (ECB mode).

Trait Implementations

impl BlockCipher for Grasshopper

const BLOCK_LEN: usize = 16

Block length in bytes.

fn encrypt(&self, block: &mut [u8])

Encrypt one block in-place. Panics if block.len() != BLOCK_LEN.

fn decrypt(&self, block: &mut [u8])

Decrypt one block in-place. Panics if block.len() != BLOCK_LEN.

impl Drop for Grasshopper

fn drop(&mut self)

Executes the destructor for this type.