Crate cuaimacrypt 

CuaimaCrypt symmetric hybrid cipher engine.

CuaimaCrypt is a symmetric cipher that combines block cipher and stream cipher techniques, operating on 128-bit blocks (two i64 values). Security is scalable through the addition of processing blocks (RakeCodecs).

This crate provides the core encryption engine, compatible byte-for-byte with the original Java implementation in BTCrypto.

Architecture

ShiftCodec  (atomic unit — 64-bit shift register with non-linear feedback)
    ↕ chained (upchain / downchain)
RakeCodec   (groups 4 ShiftCodecs — processes 128 bits)
    ↕ N blocks in cascade with CrossByte between them
CuaimaCrypt (orchestrator — Walsh + Interleaving + N RakeCodecs + SeedHopping)

Examples

Encrypt and decrypt a 128-bit block:

use cuaimacrypt::CuaimaCrypt;

let mut encoder = CuaimaCrypt::new();
encoder.password("my_secret_password").unwrap();

let mut decoder = CuaimaCrypt::new();
decoder.password("my_secret_password").unwrap();

let original: [i64; 2] = [42, 84];
let mut block = original;

encoder.codec(&mut block);
assert_ne!(block, original);

decoder.decodec(&mut block);
assert_eq!(block, original);

Use a custom number of RakeCodecs for higher security:

use cuaimacrypt::CuaimaCrypt;

let mut cc = CuaimaCrypt::with_num_rakes(16).unwrap();
cc.password("my_secret_password").unwrap();

let mut block: [i64; 2] = [1, 2];
cc.codec(&mut block);

Modules

error

Error types for the CuaimaCrypt library.

Structs

CuaimaCrypt

Symmetric hybrid cipher engine operating on 128-bit blocks.