mirror of https://go.googlesource.com/go
30 lines
714 B
Go
30 lines
714 B
Go
// Copyright 2023 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package des
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import "testing"
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func TestInitialPermute(t *testing.T) {
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for i := uint(0); i < 64; i++ {
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bit := uint64(1) << i
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got := permuteInitialBlock(bit)
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want := uint64(1) << finalPermutation[63-i]
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if got != want {
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t.Errorf("permute(%x) = %x, want %x", bit, got, want)
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}
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}
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}
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func TestFinalPermute(t *testing.T) {
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for i := uint(0); i < 64; i++ {
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bit := uint64(1) << i
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got := permuteFinalBlock(bit)
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want := uint64(1) << initialPermutation[63-i]
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if got != want {
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t.Errorf("permute(%x) = %x, want %x", bit, got, want)
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}
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}
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}
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