mirror of
https://github.com/emmansun/gmsm.git
synced 2025-04-22 02:06:18 +08:00
25 lines
484 B
Go
25 lines
484 B
Go
//go:build (amd64 || arm64 || ppc64 || ppc64le) && !purego
|
|
|
|
package zuc
|
|
|
|
import (
|
|
"github.com/emmansun/gmsm/internal/cpuid"
|
|
)
|
|
|
|
var supportsGFMUL = cpuid.HasGFMUL || cpuid.HasVPMSUMD
|
|
|
|
//go:noescape
|
|
func eia3Round16B(t *uint32, keyStream *uint32, p *byte, tagSize int)
|
|
|
|
func block(m *ZUC128Mac, p []byte) {
|
|
if supportsGFMUL {
|
|
for len(p) >= chunk {
|
|
m.genKeywords(m.k0[4:])
|
|
eia3Round16B(&m.t, &m.k0[0], &p[0], m.tagSize)
|
|
p = p[chunk:]
|
|
}
|
|
} else {
|
|
blockGeneric(m, p)
|
|
}
|
|
}
|