almide/aes

AES-128-CFB8 encryption for Almide. Hardware-accelerated on Rust target via AES-NI, pure Almide fallback for WASM.

Usage

import aes
import bytes

let key = bytes.from_list([0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
                           0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F])
let iv = key
let state = aes.new_cfb8(key, iv)

let encrypted = aes.cfb8_encrypt(state, plaintext)
// encrypted.data   — ciphertext
// encrypted.state  — updated state for next call

let decrypted = aes.cfb8_decrypt(encrypted.state, encrypted.data)

API

Function	Type
new_cfb8(key, iv)	(Bytes, Bytes) -> Cfb8State
cfb8_encrypt(state, data)	(Cfb8State, Bytes) -> { data: Bytes, state: Cfb8State }
cfb8_decrypt(state, data)	(Cfb8State, Bytes) -> { data: Bytes, state: Cfb8State }
encrypt_block(block, expanded_key)	(Bytes, Bytes) -> Bytes
expand_key(key)	Bytes -> Bytes

Performance

Target	Implementation	AES-CFB8 4096B
Rust	Native (aes crate, AES-NI)	~67μs
WASM	Pure Almide	~300ms

Install

almide add almide/aes