ty

It doesn't affect correctness. But we should find a way to make clippy happy.

1. `stdsimd`: http://rust-lang.github.io/rfcs/2977-stdsimd.html 2. `llvm_asm`: https://github.com/rust-lang/rust/issues/70173 - It could be rewritten with the latest `asm!` feature, but it still requires nightly. Maybe @LuoZijun could consider to implement those features with...

Well, using `nightly` doesn't means *unstable*. Actually all releases builds are built with nightly in Docker. But it would be better to make it build with stable Rust, or it...

It should be able to build with stable rust except aarch64 platform.

It doesn't related to `asm!` macro. The SIMD intrinsic functions for aarch64 is not stablized yet. https://doc.rust-lang.org/core/arch/aarch64/index.html

There shouldn't be a lot of work.

But `core::arch` for aarch64 is far from stable yet.

Nightly is only required for aarch64 target.

```toml crypto2 = { git = "https://github.com/shadowsocks/crypto2.git" } ``` Use the master branch.

The correctness is already tested with these testcases: https://github.com/shadowsocks/crypto2/blob/f32eccf5ef588206017ee47c29614e727d8b1183/src/blockcipher/aes/mod.rs#L38-L96 AES is a symmetric cipher algorithm, which means that the cipher text's length should be identical with the text. Your Java...