cksum: binary with aws-lc is 2.4 MB smaller than vendored openssl & md5 and sha1 are faster

[oech3]

I tested similar hack with #14559 on Linux. Then I got

cksum with aws-lc (no jitter): 4.6 MB
cksum with static openssl: 7.0 MB
cksum with system openssl: 2.3 MB

Also linkage against system openssl is still possible even if aws-lc feature is set via OPENSSL_NO_VENDOR=1.

[oech3]

aws-lc is faster with md5:

> hyperfine -N "cksum-ossl-static -a md5 /lib/chromium/chromium" "cksum-aws-lc -a md5 /lib/chromium/chromium" "cksum-ossl-sys -a md5 /lib/chromium/chromium"
Benchmark 1: cksum-ossl-static -a md5 /lib/chromium/chromium
  Time (mean ± σ):     647.0 ms ±   1.4 ms    [User: 603.4 ms, System: 40.0 ms]
  Range (min … max):   644.9 ms … 648.5 ms    10 runs
 
Benchmark 2: cksum-aws-lc -a md5 /lib/chromium/chromium
  Time (mean ± σ):     640.7 ms ±   2.0 ms    [User: 597.5 ms, System: 39.0 ms]
  Range (min … max):   637.0 ms … 643.6 ms    10 runs
 
Benchmark 3: cksum-ossl-sys -a md5 /lib/chromium/chromium
  Time (mean ± σ):     648.7 ms ±   2.2 ms    [User: 607.5 ms, System: 37.6 ms]
  Range (min … max):   646.1 ms … 653.5 ms    10 runs
 
Summary
  cksum-aws-lc -a md5 /lib/chromium/chromium ran
    1.01 ± 0.00 times faster than cksum-ossl-static -a md5 /lib/chromium/chromium
    1.01 ± 0.00 times faster than cksum-ossl-sys -a md5 /lib/chromium/chromium

[oech3]

sha1

> hyperfine -N "cksum-ossl-static -a md5 /lib/chromium/chromium" "cksum-aws-lc -a md5 /lib/chromium/chromium"
Benchmark 1: cksum-ossl-static -a md5 /lib/chromium/chromium
  Time (mean ± σ):     647.2 ms ±   2.1 ms    [User: 603.7 ms, System: 39.2 ms]
  Range (min … max):   644.8 ms … 651.3 ms    10 runs
 
Benchmark 2: cksum-aws-lc -a md5 /lib/chromium/chromium
  Time (mean ± σ):     641.9 ms ±   2.9 ms    [User: 594.7 ms, System: 41.8 ms]
  Range (min … max):   638.1 ms … 646.6 ms    10 runs
 
Summary
  cksum-aws-lc -a md5 /lib/chromium/chromium ran
    1.01 ± 0.01 times faster than cksum-ossl-static -a md5 /lib/chromium/chromium

[oech3]

sha256/512 with aws-lc is much slower...

> hyperfine -N "cksum-ossl-static -a sha512 /lib/chromium/chromium" "cksum-aws-lc -a sha512 /lib/chromium/chromium"
Benchmark 1: cksum-ossl-static -a sha512 /lib/chromium/chromium
  Time (mean ± σ):     730.8 ms ±   5.3 ms    [User: 684.0 ms, System: 42.7 ms]
  Range (min … max):   725.0 ms … 743.3 ms    10 runs
 
Benchmark 2: cksum-aws-lc -a sha512 /lib/chromium/chromium
  Time (mean ± σ):     851.8 ms ±  10.4 ms    [User: 804.3 ms, System: 42.1 ms]
  Range (min … max):   844.3 ms … 879.5 ms    10 runs
 
  Warning: Statistical outliers were detected. Consider re-running this benchmark on a quiet system without any interferences from other programs. It might help to use the '--warmup' or '--prepare' options.
 
Summary
  cksum-ossl-static -a sha512 /lib/chromium/chromium ran
    1.17 ± 0.02 times faster than cksum-aws-lc -a sha512 /lib/chromium/chromium