From: Lonnie Abelbeck <lists@lonnie.abelbeck.com>
To: WireGuard mailing list <wireguard@lists.zx2c4.com>
Subject: iOS WG (1.0.3) - ARM64 SIMD ChaCha20
Date: Wed, 20 Feb 2019 09:03:43 -0600 [thread overview]
Message-ID: <A76D82AE-F12E-4E3E-906A-D34640E2DF4F@lonnie.abelbeck.com> (raw)
Thanks to Jason and the team, a new iOS WG 1.0.3 appeared as an update:
1.0.3 / Feb 19, 2019
--
Performance should be higher and battery usage lower, thanks to a new ARM64 SIMD implementation of ChaCha20
--
For reference, the upstream golang crypto commit is here [1] with performance numbers.
So, the question come to mind, do my iOS devices have ARM64 SIMD support, quick answer is if the device is less than 6 years old it should have ARM64 SIMD support. Added in the A5/A6 CPU's from what I can tell.
Apple-designed processors
https://en.wikipedia.org/wiki/Apple-designed_processors
Please correct my research if I over-simplified where the new ARM64 SIMD implementation of ChaCha20 is available for iOS WireGuard.
Lonnie
[1] chacha20: add SIMD implementation on arm64
https://go.googlesource.com/crypto/+/74369b46fc6756741c016591724fd1cb8e26845f
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next reply other threads:[~2019-02-20 15:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-20 15:03 Lonnie Abelbeck [this message]
2019-02-20 21:01 ` Sebastian Gottschall
2019-02-21 16:03 ` Lonnie Abelbeck
2019-02-21 17:09 ` Sebastian Gottschall
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