# std.crypto.aes: introduce AES block vectors \(\#22023\) · gitcafe/zig

[View on GitCafe](https://git.cafe/gitcafe/zig/commit/636308a17d8f8118ab34e9d4b217baa5878416c4)

Repository: [gitcafe/zig](https://git.cafe/gitcafe/zig)

Visibility: public

Requested revision: 636308a17d8f8118ab34e9d4b217baa5878416c4

Requested commit: 636308a17d8f8118ab34e9d4b217baa5878416c4

Commit: 636308a17d8f8118ab34e9d4b217baa5878416c4

Tree: d686f3b2cb237c0f6d4a75cf3b22760ae113ac16

Author: Frank Denis

Committer: GitHub

## Message

```
std.crypto.aes: introduce AES block vectors (#22023)

* std.crypto.aes: introduce AES block vectors

Modern Intel CPUs with the VAES extension can handle more than a
single AES block per instruction.

So can some ARM and RISC-V CPUs. Software implementations with
bitslicing can also greatly benefit from this.

Implement low-level operations on AES block vectors, and the
parallel AEGIS variants on top of them.

AMD Zen4:

      aegis-128x4:      73225 MiB/s
      aegis-128x2:      51571 MiB/s
       aegis-128l:      25806 MiB/s
      aegis-256x4:      46742 MiB/s
      aegis-256x2:      30227 MiB/s
        aegis-256:       8436 MiB/s
       aes128-gcm:       5926 MiB/s
       aes256-gcm:       5085 MiB/s

AES-GCM, and anything based on AES-CTR are also going to benefit
from this later.

* Make AEGIS-MAC twice a fast

```

## Parents

- [f845fa04a0dce3104efe129c73a6ad792b1712b6](https://git.cafe/gitcafe/zig/commit/f845fa04a0dce3104efe129c73a6ad792b1712b6?format=markdown)

[Source at this commit](https://git.cafe/gitcafe/zig/tree/636308a17d8f8118ab34e9d4b217baa5878416c4?format=markdown)