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34 lines
660 B
Go
34 lines
660 B
Go
//go:build (amd64 || arm64 || ppc64 || ppc64le) && !purego
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package zuc
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// Generate single keyword, 4 bytes.
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//
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//go:noescape
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func genKeywordAsm(s *zucState32) uint32
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// Generate multiple keywords, n*4 bytes.
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//
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//go:noescape
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func genKeyStreamAsm(keyStream []uint32, pState *zucState32)
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func genKeyStream(keyStream []uint32, pState *zucState32) {
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if supportsAES {
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genKeyStreamAsm(keyStream, pState)
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return
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}
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for i := 0; i < len(keyStream); i++ {
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keyStream[i] = genKeyword(pState)
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}
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}
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func genKeyword(s *zucState32) uint32 {
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if supportsAES {
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return genKeywordAsm(s)
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}
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s.bitReorganization()
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z := s.x3 ^ s.f32()
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s.enterWorkMode()
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return z
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}
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