m68k asm of AES

[Tetsuya Isaki <isaki%pastel-flower.jp@localhost>]

I wrote m68k asm version of AES encrypt/decrypt routines.
It performs approx 1.4x faster than original one (C source)
on my 68030.

Last year, I first wrote it for openssl and then adjusted it
to mbedTLS as well.  My twitter userstream client
pkgsrc/net/sayaka uses this AES routine as a part of (locally
bundled) mbedTLS.  I demonstrated it with my X68030/25MHz in
Open Source Conference 2016 Hiroshima on last Nov.
# 25MHz is X68030's normal speed but I always use 30MHz.

The details of this event was reported by ebijun@-san:
http://mail-index.netbsd.org/netbsd-advocacy/2016/11/29/msg000724.html


However, I'm neither security man nor crypt man, so I don't
know if this is appropriate or not.
Is anyone interested in this?

The patch is here:
http://www.pastel-flower.jp/~isaki/NetBSD/patch/openssl-aes-m68k-20170204.diff

Thanks,


# uname -srm
NetBSD 7.99.59 x68k
# dmesg|grep CPU
X68030 (m68030 CPU/MMU, m68882 FPU, 30MHz clock)

(normal C version)
# cd /lib
# ln -s libcrypto.so.12.0-normal libcrypto.so.12.0
# openssl speed aes
 :
OpenSSL 1.0.2k  26 Jan 2017
built on: reproducible build, date unspecified
options:bn(32,32) md2(int) rc4(ptr,int) des(idx,cisc,2,long) aes(partial) idea(int) blowfish(idx)
gcc version 5.4.0 (NetBSD nb1 20160606)
The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes
aes-128 cbc         67.95k       74.11k       74.92k       74.41k       74.22k
aes-192 cbc         56.02k       61.84k       63.18k       63.65k       63.65k
aes-256 cbc         50.31k       54.59k       55.60k       55.85k       56.04k

(m68k asm version)
# rm libcrypto.so.12.0
# ln -s libcrypto.so.12.0-asm libcrypto.so.12.0
# openssl speed aes
 :
OpenSSL 1.0.2k  26 Jan 2017
built on: reproducible build, date unspecified
options:bn(32,32) md2(int) rc4(ptr,int) des(idx,cisc,2,long) aes(partial) idea(int) blowfish(idx)
gcc version 5.4.0 (NetBSD nb1 20160606)
The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes
aes-128 cbc         92.00k      100.47k      106.25k      107.04k      107.34k
aes-192 cbc         75.21k       85.90k       88.56k       89.25k       89.81k
aes-256 cbc         66.19k       74.90k       77.93k       78.27k       78.15k

---
Tetsuya Isaki <isaki%pastel-flower.jp@localhost / isaki%NetBSD.org@localhost>