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/* |
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* This file is part of FYReader. |
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* FYReader is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* FYReader is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with FYReader. If not, see <https://www.gnu.org/licenses/>.
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* |
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* Copyright (C) 2020 - 2022 fengyuecanzhu |
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*/ |
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package xyz.fycz.dynamic; |
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/** |
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* Generated code from StringFog gradle plugin. Do not modify! |
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*/ |
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public final class StringFog { |
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private static final StringFogImpl IMPL = new StringFogImpl(); |
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public static String decrypt(byte[] value, byte[] key) { |
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return IMPL.decrypt(value, key); |
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} |
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} |
@ -0,0 +1,59 @@ |
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/* |
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* This file is part of FYReader. |
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* FYReader is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* FYReader is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with FYReader. If not, see <https://www.gnu.org/licenses/>.
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* |
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* Copyright (C) 2020 - 2022 fengyuecanzhu |
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*/ |
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package xyz.fycz.dynamic; |
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import java.nio.charset.StandardCharsets; |
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/** |
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* StringFog xor encrypt and decrypt implementation. |
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* |
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* @author Megatron King |
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* @since 2018/9/2 14:34 |
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*/ |
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public final class StringFogImpl { |
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public byte[] encrypt(String data, byte[] key) { |
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return xor(data.getBytes(StandardCharsets.UTF_8), key); |
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} |
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public String decrypt(byte[] data, byte[] key) { |
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return new String(xor(data, key), StandardCharsets.UTF_8); |
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} |
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public boolean shouldFog(String data) { |
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return true; |
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} |
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private static byte[] xor(byte[] data, byte[] key) { |
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int len = data.length; |
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int lenKey = key.length; |
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int i = 0; |
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int j = 0; |
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while (i < len) { |
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if (j >= lenKey) { |
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j = 0; |
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} |
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data[i] = (byte) (data[i] ^ key[j]); |
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i++; |
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j++; |
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} |
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return data; |
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} |
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} |
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