[openssl-dev] ARM optimised montgomery multiplication (armv4-mont)

Andy Polyakov appro at openssl.org
Wed Jun 17 12:11:45 UTC 2015


Hi,

>     When using on armv8 architecture, does this mont mul ASM code have
> any optimization with linux-aarch64 configuration?

There is ambiguity in posed question. In direct context of this
discussion "this" as in "this mont mul ASM code" ought to refer to
armv4-mont. And then the answer would have to be "no, ARMv4 code can not
used in aarch64 build". But it's also possible to generalize and
consider "this" more like "this thing, Montgomery multiplication module,
you are talking about, is there aarch64 equivalent?" And answer to such
question would be yes, there is corresponding armv8-mont module in
development branch.



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