9b6bf20a35
There is currently only one assembly implementation of AES (amd64). While it is possible to fit other implementations to the same pattern it complicates the code. For example s390x does not use expanded keys, so having enc and dec in the aesCipher struct is confusing. By separating out the asm implementations we can more closely match the data structures to the underlying implementation. This also opens the door for AES implementations that support block cipher modes other than GCM (e.g. CTR and CBC). This commit changes BenchmarkExpandKey to test the go implementation of key expansion. It might be better to have some sort of 'initialisation' benchmark instead to cover the startup costs of the assembly implementations (which might be doing key expansion in a different way, or not at all). Change-Id: I094a7176b5bbe2177df73163a9c0b711a61c12d6 Reviewed-on: https://go-review.googlesource.com/22193 Run-TryBot: Michael Munday <munday@ca.ibm.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> |
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