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34 lines
909 B
Go
34 lines
909 B
Go
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// Copyright 2016 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 chacha20
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import (
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"encoding/hex"
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"testing"
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)
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func TestCore(t *testing.T) {
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// This is just a smoke test that checks the example from
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// https://tools.ietf.org/html/rfc7539#section-2.3.2. The
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// chacha20poly1305 package contains much more extensive tests of this
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// code.
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var key [32]byte
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for i := range key {
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key[i] = byte(i)
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}
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var input [16]byte
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input[0] = 1
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input[7] = 9
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input[11] = 0x4a
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var out [64]byte
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XORKeyStream(out[:], out[:], &input, &key)
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const expected = "10f1e7e4d13b5915500fdd1fa32071c4c7d1f4c733c068030422aa9ac3d46c4ed2826446079faa0914c2d705d98b02a2b5129cd1de164eb9cbd083e8a2503c4e"
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if result := hex.EncodeToString(out[:]); result != expected {
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t.Errorf("wanted %x but got %x", expected, result)
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}
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}
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