mirror of
https://github.com/HACKERALERT/Picocrypt.git
synced 2024-06-02 18:34:43 +12:00
41 lines
1.4 KiB
Go
41 lines
1.4 KiB
Go
// The MIT License (MIT)
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//
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// Copyright (C) 2016-2017 Vivint, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//go:build !amd64
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package infectious
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func addmul(z []byte, x []byte, y byte) {
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if y == 0 {
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return
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}
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// hint to the compiler that we don't need bounds checks on x
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x = x[:len(z)]
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// TODO(jeff): loop unrolling for SPEEDS
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gf_mul_y := gf_mul_table[y][:]
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for i := range z {
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z[i] ^= gf_mul_y[x[i]]
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}
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}
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