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27 lines
601 B
27 lines
601 B
// Copyright 2022 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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//go:build !go1.20
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package sasl
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// TODO: remove all the specialized XOR code and use "crypto/subtle".XORBytes
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// when Go v1.21 comes out. For more information see:
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// https://mellium.im/issue/338
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func goXORBytes(dst, x, y []byte) int {
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n := len(x)
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if len(y) < n {
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n = len(y)
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}
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if n == 0 {
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return 0
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}
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if n > len(dst) {
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panic("subtle.XORBytes: dst too short")
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}
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xorBytes(&dst[0], &x[0], &y[0], n) // arch-specific
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return n
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}
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